{"title":"Class AB Amplifiers","description":"\u003cdiv class=\"ai-collection-block ai-cat-amplifiers\"\u003e\n\n\u003ch2\u003eWhy Class AB Is Still the SQ Default\u003c\/h2\u003e\n\n\u003cp\u003eClass AB runs two output stages that hand off between the positive and negative halves of the waveform, with a bias current holding both partially conducting at all times. That bias is the whole point: it removes the crossover distortion a pure Class B design produces at the handoff, without paying Class A's price of conducting continuously whether there is signal or not.\u003c\/p\u003e\n\n\u003cp\u003eWhat it costs is efficiency. Class AB runs at roughly 50% to 65%, so a third to a half of what it draws leaves as heat. That means a bigger chassis, real ventilation, and more current from the alternator than a Class D amp of the same rated power. What it buys is the linearity that sound-quality builders keep coming back to on a front stage.\u003c\/p\u003e\n\n\u003ch3\u003eClass AB or Class D\u003c\/h3\u003e\n\n\u003cp\u003eThis is not a good-versus-bad question, and anyone telling you Class D is a compromise has not listened to a modern one. They are different trades.\u003c\/p\u003e\n\n\u003ctable class=\"ai-compare\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003eClass AB\u003c\/th\u003e\n\u003cth\u003eClass D\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd data-label=\"Class AB\"\u003eRoughly 50% to 65%\u003c\/td\u003e\n\u003ctd data-label=\"Class D\"\u003eRoughly 80% to 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat\u003c\/td\u003e\n\u003ctd data-label=\"Class AB\"\u003eReal. Plan ventilation and chassis space\u003c\/td\u003e\n\u003ctd data-label=\"Class D\"\u003eLow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize at equal power\u003c\/td\u003e\n\u003ctd data-label=\"Class AB\"\u003eLarger\u003c\/td\u003e\n\u003ctd data-label=\"Class D\"\u003eSmaller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlternator draw\u003c\/td\u003e\n\u003ctd data-label=\"Class AB\"\u003eHigher\u003c\/td\u003e\n\u003ctd data-label=\"Class D\"\u003eLower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhere it earns its keep\u003c\/td\u003e\n\u003ctd data-label=\"Class AB\"\u003eFull range, front stage, critical listening\u003c\/td\u003e\n\u003ctd data-label=\"Class D\"\u003eSubwoofer duty and installs with no room\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePick it when\u003c\/td\u003e\n\u003ctd data-label=\"Class AB\"\u003eThe front stage is the point of the build\u003c\/td\u003e\n\u003ctd data-label=\"Class D\"\u003eSpace, heat or alternator headroom decides it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003ePlenty of good systems run both: Class AB on the front stage, Class D on the sub. See \u003ca href=\"\/collections\/class-d-amplifiers\"\u003eClass D amplifiers\u003c\/a\u003e, the reference tier in \u003ca href=\"\/collections\/class-a-amplifiers\"\u003eClass A amplifiers\u003c\/a\u003e, or the \u003ca href=\"\/collections\/car-amplifiers\"\u003efull amplifier lineup\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003caside class=\"ai-callout-spec\"\u003e\n\u003cp class=\"ai-callout-label\"\u003eWhat the Efficiency Number Costs You\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"ai-spec-key\"\u003eAt 50% to 65% efficiency\u003c\/span\u003e, a Class AB amp turns a third to a half of its draw into heat. \u003cspan class=\"ai-spec-key\"\u003eA 1000W RMS Class AB amp can pull roughly 100 amps\u003c\/span\u003e from a 12V system at full output, which is more than most factory alternators sustain alongside everything else the car is running. Plan the \u003ca href=\"\/blogs\/how-to-wire\/how-to-do-the-big-3-upgrade-complete-step-by-step-guide\"\u003eBig 3 upgrade\u003c\/a\u003e before you plan the amp.\u003c\/p\u003e\n\u003c\/aside\u003e\n\n\u003ch2\u003eWhen Class AB Is the Right Call\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eReference builds where Class A is impractical.\u003c\/strong\u003e Class A conducts continuously, which is why it measures the cleanest and why it needs a high-output alternator, battery capacity and dedicated cooling to live in a car. Class AB gets you linear amplification without redesigning the electrical system around it. The Audio Wave Aspire Pro USA and CR 401 Dual Mono sit at that ceiling.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMatched topology across a multi-amp system.\u003c\/strong\u003e Running one topology from front stage to sub keeps the character consistent end to end. Tru Technology is the line that makes this easy: Tungsten and Tungsten Grande both come as \u003ca href=\"\/collections\/monoblock-amplifier\"\u003emonoblock\u003c\/a\u003e, \u003ca href=\"\/collections\/2-channel-amplifiers\"\u003e2-channel\u003c\/a\u003e and \u003ca href=\"\/collections\/4-channel-amplifiers\"\u003e4-channel\u003c\/a\u003e, so the whole rack can match.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFull-range speaker duty.\u003c\/strong\u003e A subwoofer works a narrow band. A front stage works 80Hz to 20kHz, through the midrange and treble where the ear is least forgiving. That is where topology choice actually shows up, and it is why the common SQ layout is Class AB on the \u003ca href=\"\/collections\/component-sets\"\u003ecomponents\u003c\/a\u003e and Class D on the \u003ca href=\"\/collections\/car-subwoofers\"\u003esub\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompetition.\u003c\/strong\u003e We judge IASCA and MECA and we compete in our own truck. The front stages that score at the top run Class AB or Class A.\u003c\/p\u003e\n\n\u003ch2\u003eCatalog by Tier\u003c\/h2\u003e\n\n\u003ch3\u003eEntry Tier, $159 to $399\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUS Acoustics Lisa\u003c\/strong\u003e, 4-channel at 4 x 50W ($159.99). The accessible way into 4-channel Class AB, and the right answer for putting proper power on factory speakers. \u003cstrong\u003eWendy\u003c\/strong\u003e, 2-channel at 2 x 75W ($159.99), does the same job for a dedicated front stage. \u003cstrong\u003eAndrea\u003c\/strong\u003e, 2-channel at 2 x 150W ($289.99), steps the per-channel power up for higher-output components. \u003cstrong\u003eBarbara Ann\u003c\/strong\u003e, 4-channel at 4 x 100W ($399.99), handles most aftermarket component sets cleanly. See the \u003ca href=\"\/collections\/us-acoustics-amplifiers\"\u003efull US Acoustics lineup\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSQ Mid-Tier, $499 to $799\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCrescendo Revolution 3A4\u003c\/strong\u003e, 4-channel ($499.00) and \u003cstrong\u003e5A4\u003c\/strong\u003e, 4-channel ($779.99). \u003cstrong\u003eUS Acoustics Lanna\u003c\/strong\u003e, 6-channel at 6 x 150W ($695.00), is the practical entry to an active three-way, which normally costs a lot more to get into. \u003cstrong\u003eCrescendo Revolution 5A1\u003c\/strong\u003e ($749.99) is the odd one and the interesting one: a Class AB full-range monoblock holding 450W at 4, 2 or 1 ohm, where nearly every other monoblock on the market is Class D. See \u003ca href=\"\/collections\/crescendo-amplifiers\"\u003eCrescendo amplifiers\u003c\/a\u003e and \u003ca href=\"\/collections\/5-6-8-channel-amplifiers\"\u003e6-channel amps\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eAudiophile Mid-Tier, $1,399 to $2,399\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTru Technology Tungsten\u003c\/strong\u003e in 2-channel and 4-channel (both $1,399.99), then \u003cstrong\u003eTungsten Grande\u003c\/strong\u003e as monoblock ($1,999.99), 4-channel ($2,399.99) and 2-channel ($2,399.99). US-built, and the reason to buy into the line is that it covers every channel count at one topology. \u003cstrong\u003eCrescendo Revolution 7A4\u003c\/strong\u003e, 4-channel ($1,699.99), is the SQ pick of the Revolution line. See \u003ca href=\"\/collections\/tru-technology\"\u003eTru Technology\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eAudio Wave Reference Tier, $2,499 and Up\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eActive 250\u003c\/strong\u003e, full-range monoblock ($2,499.99). \u003cstrong\u003eExcel\u003c\/strong\u003e, 2-channel ($2,600), and \u003cstrong\u003eExcel Monoblock\u003c\/strong\u003e, full-range ($3,099.99). \u003cstrong\u003eAspire Pro USA\u003c\/strong\u003e, 2-channel ($7,999.99, marked down from $8,999.99), and the \u003cstrong\u003eAspire Pro USA Monoblock\u003c\/strong\u003e ($8,999.99) for a matched pair. The \u003cstrong\u003eAspire Pro 6 Channel\u003c\/strong\u003e is a previous demo at $21,999.99 against $29,999.99, and it is the last one. At the top, the \u003cstrong\u003eCR 401 Dual Mono\u003c\/strong\u003e ($39,999.99). See \u003ca href=\"\/collections\/audio-wave-amplifiers\"\u003eAudio Wave amplifiers\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIf you are running an active front stage, the \u003ca href=\"\/collections\/digital-sound-processor\"\u003eDSP lineup\u003c\/a\u003e does the crossover work these amps would otherwise be guessing at. And whatever you buy, gain is what protects it: \u003ca href=\"\/blogs\/car-amplifiers\/how-to-set-amplifier-gain-a-practical-step-by-step-guide\"\u003ehow we set amplifier gain\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003caside class=\"ai-callout-cta\"\u003e\n\u003cp class=\"ai-callout-label\"\u003eNeed Help Choosing a Class AB Amplifier?\u003c\/p\u003e\n\u003cp\u003eSend us your speaker specs (RMS power, impedance), how the system is laid out, and what you are optimizing for. We will tell you which Class AB amp fits, and whether your electrical system is ready for it, before you buy. \u003ca href=\"\/pages\/contact-us\"\u003eContact us\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"ai-contact-phone\"\u003e707-999-3071\u003c\/span\u003e\u003cspan class=\"ai-contact-divider\"\u003e|\u003c\/span\u003e\u003cspan class=\"ai-contact-email\"\u003econtact@audiointensity.com\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/aside\u003e\n\n\u003cdiv class=\"ai-faq-section\"\u003e\n\n\u003ch2\u003eFrequently Asked Class AB Amplifier Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the difference between Class AB and Class D?\u003c\/h3\u003e\n\u003cp\u003eClass AB is linear amplification with a bias current that eliminates crossover distortion, and it runs at roughly 50% to 65% efficiency. Class D uses a switching output stage to reach roughly 80% to 90%, which means less heat, a smaller chassis and less draw on the alternator. Modern Class D from a good manufacturer is transparent and appropriate for any application, including critical listening. The practical split most SQ builds land on is Class AB on the front stage and Class D on the subwoofer, where the narrow band and the current demand favor it.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between Class AB and Class A?\u003c\/h3\u003e\n\u003cp\u003eClass A conducts continuously across the whole waveform, which produces the lowest distortion available and roughly 20% to 25% efficiency. In a car that means serious heat, serious current draw, and usually an alternator and battery to match. Class AB uses bias current to get linear behavior through the handoff while letting the idle stage draw far less, which is what makes it livable in a vehicle. If your install cannot support Class A, Class AB is the architecturally correct choice.\u003c\/p\u003e\n\n\u003ch3\u003eHow much power do I need from a Class AB amp?\u003c\/h3\u003e\n\u003cp\u003eMatch the amplifier's RMS per channel to your speakers' RMS rating, ideally 75% to 150% of it. Components rated 75W to 100W RMS are well matched by 75 to 150 watts per channel. Audiophile-tier drivers with higher ratings want 150 to 250 watts per channel. Underpowering causes clipping at volume, and clipping is what damages speakers.\u003c\/p\u003e\n\n\u003ch3\u003eDoes Class AB run hot?\u003c\/h3\u003e\n\u003cp\u003eMore than Class D, less than Class A. At 50% to 65% efficiency, roughly a third to a half of what the amp draws leaves as heat, which is why Class AB chassis are larger than Class D equivalents at the same rated power. Normal install practice with real ventilation handles it. Unlike Class A, it does not usually force an electrical system rebuild, though anything over about 500W RMS total still wants the Big 3 done.\u003c\/p\u003e\n\n\u003ch3\u003eCan I bridge a Class AB amplifier for a subwoofer?\u003c\/h3\u003e\n\u003cp\u003eYes, most 2-channel and 4-channel Class AB amps bridge. For a permanent subwoofer a purpose-built Class AB monoblock does it better, because the circuit is built for the high-current low-impedance load a sub presents. The Tru Technology Tungsten Grande Monoblock, Audio Wave Excel Monoblock and Crescendo Revolution 5A1 are the Class AB monoblocks here.\u003c\/p\u003e\n\n\u003ch3\u003eAre these new with manufacturer warranty?\u003c\/h3\u003e\n\u003cp\u003eYes, with one exception. The Audio Wave Aspire Pro 6 Channel is a previous demo unit at closeout pricing and is labeled as such on its product page. Every other amplifier in this collection is brand new, sold by an authorized dealer, and carries the full manufacturer warranty. We handle warranty claims directly with the brand.\u003c\/p\u003e\n\n\u003ch3\u003eDo you offer power-matching consultation before purchase?\u003c\/h3\u003e\n\u003cp\u003eYes. Send us your speaker specs (RMS power, impedance) and your build layout and we will recommend the right Class AB amp for it. Pre-purchase consultation is free. We would rather spend 15 minutes confirming the match than have you return a mismatched amplifier.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"audiowave-excel-2-channel-amplifier","title":"Audio Wave Excel | 2 Channel Class AB Amplifier","description":"\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col flex-grow\"\u003e\n\u003cdiv class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 break-words [.text-message+\u0026amp;]:mt-5 overflow-x-auto whitespace-pre-wrap\" dir=\"auto\" data-message-id=\"51237db6-9183-44cc-8f0d-a31acbf71532\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cp\u003eIntroducing the Audio Wave Excel: a premium 2-Channel Class AB Amplifier that redefines audio performance for passionate music enthusiasts and discerning professionals. This amplifier isn't just another piece of equipment—it's a gateway to an unparalleled listening experience meticulously engineered to deliver sound with extraordinary clarity, depth, and power.\u003c\/p\u003e\n\u003cp\u003eThe Audio Wave Excel is built with the audiophile in mind. It features cutting-edge technology that ensures every nuance of your music is reproduced with precision. Whether you're enjoying your favorite tracks at home or fine-tuning your latest project in the studio, Excel brings out the best in every sound, offering an experience that is as close to the original recording as possible.\u003c\/p\u003e\n\u003cp\u003eWhat truly sets Audio Wave apart is our unwavering commitment to craftsmanship. Each Audio Wave Excel amplifier is designed and handcrafted one at a time, ensuring that every unit meets our exacting standards for build quality and sonic excellence. This hands-on approach allows us to maintain an exceptional level of quality control, resulting in a durable and aesthetically refined product.\u003c\/p\u003e\n\u003cp\u003eIn addition to its superior sound, the Audio Wave Excel is equipped with advanced features that cater to the needs of both casual listeners and audio professionals. From its robust power output to its finely tuned signal processing, every aspect of the Excel is optimized to enhance your audio experience.\u003c\/p\u003e\n\u003cp\u003eUpgrade your sound system with the Audio Wave Excel and discover what it means to hear your music truly. With Audio Wave, you're not just getting an amplifier—you're investing in a masterpiece of audio engineering that will transform how you listen to music. Experience the pinnacle of sound quality with the Audio Wave Excel Series. See more \u003ca href=\"https:\/\/audiointensity.com\/collections\/audio-wave-excel-series\" target=\"_blank\" rel=\"noopener\"\u003eAudio Wave Excel amplifiers\u003c\/a\u003e for handcrafted Class AB performance and high-fidelity system builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"font_8 wixui-rich-text__text\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eSNR A\/W full power \u0026gt;-99dB\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eF\/R 12Hz-100KHz (-1dB)\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eInput Impedance 33K Ohms\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eInput sensitivity 0.3V - 5V\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eIdle current 1.0 Amp\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eInternal fuse rating 1 x 30 Amp\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eVoltage input 9 - 16 Volt DC\u003c\/li\u003e\n\u003cli class=\"font_8 wixui-rich-text__text\"\u003eGold-plated speaker and power connectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font_8 wixui-rich-text__text\"\u003e \u003c\/p\u003e\n\u003cp class=\"font_8 wixui-rich-text__text\"\u003e\u003cstrong\u003eNOTE: WHITE AMPS ARE AVAILABLE BY SPECIAL ORDER WHICH MIGHT REQUIRE A SLIGHTLY LONGER PROCESSING TIME. CONTACT US FOR INFORMATION \/ TIMELINE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Audio Wave","offers":[{"title":"Black","offer_id":41751350018137,"sku":"Excel Black","price":2600.0,"currency_code":"USD","in_stock":false},{"title":"White","offer_id":41751350050905,"sku":"Excel White","price":2600.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/audio-wave-excel-2-channel-class-ab-amplifieramplifieraudio-wave-828048.jpg?v=1761970187"},{"product_id":"audio-wave-aspire-pro-2-channel-class-ab-amplifier","title":"Audio Wave Aspire Pro USA","description":"\u003cp\u003eBuilding on the foundation of the hand built Aspire Pro fully loaded option package, the amplifier has been elevated with a distinctive and personalized design feature: the USA flag is silk-screened over a gold circuit board. This unique detail not only enhances the amplifier's visual appeal but also adds a sense of individuality and pride for the owner.\u003c\/p\u003e\n\u003cp\u003eThe gold circuit board provides a striking contrast against the silk-screened flag, creating a visually captivating element that sets the amplifier apart from standard models. This thoughtful design choice reflects a blend of patriotic sentiment and high-end craftsmanship, underscoring the amplifier's status as not just a piece of audio equipment but a work of art. The incorporation of the USA flag over the gold board transforms the amplifier into a statement piece, making it a standout addition to any audio setup.\u003c\/p\u003e\n\u003cp\u003eBeyond aesthetics, the gold circuit board serves a functional purpose as well, contributing to the amplifier's superior performance. Gold is known for its excellent conductive properties, which help minimize signal loss and reduce interference, resulting in cleaner, more precise sound reproduction. By combining this high-performance functionality with a visually appealing design, the Aspire Pro JDP G amplifier offers both exceptional audio quality and a unique personal touch.\u003c\/p\u003e\n\u003cp\u003eThis integration of style and substance enhances the overall ownership experience, making the amplifier not only a top-tier audio device but also a symbol of individuality and pride for its user.\u003c\/p\u003e","brand":"Audio Wave","offers":[{"title":"Default Title","offer_id":41864090386521,"sku":"Aspire Pro USA","price":7999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/audio-wave-aspire-pro-usaamplifieraudio-wave-238066.webp?v=1761970218"},{"product_id":"audio-wave-excel-full-range-class-ab-monoblock-amplifier","title":"Audio Wave Excel Monoblock | Full Range Class AB 1 channel Amplifier","description":"\u003cdiv class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col flex-grow\"\u003e\n\u003cdiv class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 break-words [.text-message+\u0026amp;]:mt-5 overflow-x-auto whitespace-pre-wrap\" dir=\"auto\" data-message-id=\"51237db6-9183-44cc-8f0d-a31acbf71532\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cp\u003eIntroducing the Audio Wave Excel: a premium 2-Channel Class AB Amplifier that redefines audio performance for passionate music enthusiasts and discerning professionals. This amplifier isn't just another piece of equipment—it's a gateway to an unparalleled listening experience meticulously engineered to deliver sound with extraordinary clarity, depth, and power.\u003c\/p\u003e\n\u003cp\u003eThe Audio Wave Excel is built with the audiophile in mind. It features cutting-edge technology that ensures every nuance of your music is reproduced with precision. Whether you're enjoying your favorite tracks at home or fine-tuning your latest project in the studio, Excel brings out the best in every sound, offering an experience that is as close to the original recording as possible.\u003c\/p\u003e\n\u003cp\u003eWhat truly sets Audio Wave apart is our unwavering commitment to craftsmanship. Each Audio Wave Excel amplifier is designed and handcrafted one at a time, ensuring that every unit meets our exacting standards for build quality and sonic excellence. This hands-on approach allows us to maintain an exceptional level of quality control, resulting in a durable and aesthetically refined product.\u003c\/p\u003e\n\u003cp\u003eIn addition to its superior sound, the Audio Wave Excel is equipped with advanced features that cater to the needs of both casual listeners and audio professionals. From its robust power output to its finely tuned signal processing, every aspect of the Excel is optimized to enhance your audio experience.\u003c\/p\u003e\n\u003cp\u003eUpgrade your sound system with the Audio Wave Excel and discover what it means to hear your music truly. With Audio Wave, you're not just getting an amplifier—you're investing in a masterpiece of audio engineering that will transform how you listen to music. Experience the pinnacle of sound quality with the Audio Wave Excel Series.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"Audio Wave","offers":[{"title":"Black","offer_id":42170744504409,"sku":"Excel Black","price":3099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/audio-wave-excel-full-range-class-ab-monoblock-amplifieramplifieraudio-wave-645887.jpg?v=1761970391"},{"product_id":"crescendo-revolution-7a4-4-channel-amplifier","title":"Crescendo REVOLUTION 7A4 4 Channel Amplifier","description":"\u003cdiv class=\"cr-desc\"\u003e\n\u003cstyle\u003e\n  .cr-desc {\n    --cr-black: #0d0d0f;\n    --cr-charcoal: #1c1c21;\n    --cr-slate: #2a2a31;\n    --cr-orange: #f97316;\n    --cr-orange-deep: #c2410c;\n    --cr-tint: #faf6f1;\n    --cr-line: #ece4da;\n    --cr-text: #1f1f23;\n    --cr-muted: #55555e;\n    max-width: 1200px;\n    margin: 0 auto;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--cr-text);\n    line-height: 1.6;\n  }\n  .cr-desc * { box-sizing: border-box; }\n  .cr-hero {\n    background: linear-gradient(135deg, var(--cr-black) 0%, var(--cr-charcoal) 60%, var(--cr-slate) 100%);\n    color: #fff;\n    padding: 56px 44px;\n    border-radius: 14px;\n    text-align: center;\n    border-bottom: 4px solid var(--cr-orange);\n  }\n  .cr-hero .cr-eyebrow {\n    display: inline-block;\n    font-size: 13px;\n    letter-spacing: 2.5px;\n    text-transform: uppercase;\n    color: var(--cr-orange);\n    font-weight: 700;\n    margin-bottom: 16px;\n  }\n  .cr-hero h2 {\n    font-size: 34px;\n    line-height: 1.2;\n    margin: 0 0 14px;\n    color: #fff;\n    font-weight: 800;\n  }\n  .cr-hero p {\n    font-size: 18px;\n    color: #d8d8de;\n    max-width: 760px;\n    margin: 0 auto;\n  }\n  .cr-section {\n    background: #ffffff;\n    padding: 40px 44px;\n    margin-top: 26px;\n    border-radius: 14px;\n    border: 1px solid var(--cr-line);\n  }\n  .cr-section.tint { background: var(--cr-tint); }\n  .cr-section h3 {\n    font-size: 25px;\n    margin: 0 0 18px;\n    color: var(--cr-black);\n    font-weight: 800;\n  }\n  .cr-section p {\n    font-size: 16.5px;\n    color: var(--cr-text);\n    margin: 0 0 16px;\n  }\n  .cr-section p:last-child { margin-bottom: 0; }\n  .cr-highlight {\n    border-left: 4px solid var(--cr-orange);\n    background: #fff7ef;\n    padding: 20px 24px;\n    border-radius: 0 10px 10px 0;\n    margin: 22px 0 0;\n  }\n  .cr-highlight p { margin: 0; font-size: 16px; }\n  .cr-grid {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n    margin-top: 24px;\n  }\n  @media (max-width: 720px) { .cr-grid { grid-template-columns: 1fr; } }\n  .cr-card {\n    background: #ffffff;\n    border: 1px solid var(--cr-line);\n    border-radius: 12px;\n    padding: 26px;\n  }\n  .cr-card-label {\n    display: inline-block;\n    font-size: 11.5px;\n    letter-spacing: 1.5px;\n    text-transform: uppercase;\n    color: var(--cr-orange-deep);\n    font-weight: 700;\n    margin-bottom: 10px;\n  }\n  .cr-card h4 {\n    font-size: 18.5px;\n    margin: 0 0 12px;\n    color: var(--cr-black);\n    font-weight: 700;\n  }\n  .cr-card-divider {\n    width: 42px;\n    height: 3px;\n    background: var(--cr-orange);\n    border-radius: 2px;\n    margin: 0 0 14px;\n  }\n  .cr-card p { font-size: 15.5px; color: var(--cr-muted); margin: 0; }\n  .cr-power {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 16px;\n    margin-top: 22px;\n  }\n  @media (max-width: 720px) { .cr-power { grid-template-columns: 1fr; } }\n  .cr-power-cell {\n    background: linear-gradient(160deg, var(--cr-charcoal), var(--cr-black));\n    color: #fff;\n    border-radius: 12px;\n    padding: 24px 20px;\n    text-align: center;\n    border-top: 3px solid var(--cr-orange);\n  }\n  .cr-power-cell .num {\n    display: block;\n    font-size: 30px;\n    font-weight: 800;\n    line-height: 1.1;\n  }\n  .cr-power-cell .unit {\n    display: block;\n    font-size: 13px;\n    letter-spacing: 1px;\n    text-transform: uppercase;\n    color: var(--cr-orange);\n    margin-top: 8px;\n  }\n  .cr-cta {\n    background: linear-gradient(135deg, var(--cr-slate) 0%, var(--cr-charcoal) 50%, var(--cr-black) 100%);\n    color: #fff;\n    padding: 44px;\n    border-radius: 14px;\n    text-align: center;\n    margin-top: 26px;\n    border-top: 4px solid var(--cr-orange);\n  }\n  .cr-cta h3 { color: #fff; font-size: 24px; margin: 0 0 12px; font-weight: 800; }\n  .cr-cta p { color: #d8d8de; font-size: 16.5px; margin: 0 auto; max-width: 680px; }\n\u003c\/style\u003e\n\n  \u003cdiv class=\"cr-hero\"\u003e\n    \u003cspan class=\"cr-eyebrow\"\u003eCrescendo Revolution Series Flagship\u003c\/span\u003e\n    \u003ch2\u003eRevolution 7A4 | 4-Channel Reference Amplifier\u003c\/h2\u003e\n    \u003cp\u003ePure amplification, zero coloration. The flagship Revolution 7A4 pairs Class AB High Bias power with an audio-grade signal path built on Burr Brown chips and Elna capacitors, for sound that is neutral, controlled, and refined at every level.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section\"\u003e\n    \u003ch3\u003eFlagship Power With Reference Manners\u003c\/h3\u003e\n    \u003cp\u003eThe Revolution 7A4 delivers 150 watts per channel at 4 ohms, 240 watts per channel at 2 ohms, and 480 watts per channel bridged at 4 ohms, all rated at 14.4 volts with a 2-ohm minimum load. That is serious authority for an audiophile amplifier: enough to run a full high-end active front stage, or to bridge into a pair of demanding midbass drivers without strain.\u003c\/p\u003e\n    \u003cp\u003eThe measurements are where the flagship earns its place. Total harmonic distortion is 0.0035% at 1 watt across the audible band, signal-to-noise reaches 110 dBA at rated power (97 dBA by the CEA-2006 1-watt standard), and frequency response spans 5 Hz to 100 kHz measured at -0.5 dB, a far stricter window than the -3 dB figure most amplifiers quote.\u003c\/p\u003e\n    \u003cdiv class=\"cr-power\"\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e150W x 4\u003c\/span\u003e\u003cspan class=\"unit\"\u003eRMS at 4 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e240W x 4\u003c\/span\u003e\u003cspan class=\"unit\"\u003eRMS at 2 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e480W x 2\u003c\/span\u003e\u003cspan class=\"unit\"\u003eBridged at 4 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section tint\"\u003e\n    \u003ch3\u003eAn Audio-Grade Signal Path\u003c\/h3\u003e\n    \u003cp\u003eCrescendo built the 7A4's signal path from components chosen for transparency. Burr Brown chips handle the preamp stage and Elna audio-grade capacitors sit in the signal path, a combination found in high-end home audio far more often than in a car amplifier. The dual symmetrical power supply eliminates noise and provides the dynamic headroom that keeps complex passages composed, and all four channels are individually calibrated for matched, accurate output across the soundstage.\u003c\/p\u003e\n    \u003cp\u003eFor the purist, the 7A4 includes a preamplifier bypass option that routes the signal past the input gain stage entirely. Feed it a properly leveled signal from a high-output processor and the path from RCA to output stage gets even shorter.\u003c\/p\u003e\n    \u003cdiv class=\"cr-highlight\"\u003e\n      \u003cp\u003eLike every Revolution amplifier, the 7A4 carries no onboard filter. Crossover, time alignment, and EQ belong in your DSP; the 7A4's job is to amplify the result without editorializing. Paired with a Goldhorn processor, this is a reference-grade signal chain.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section\"\u003e\n    \u003ch3\u003eBuilt Like the Flagship It Is\u003c\/h3\u003e\n    \u003cp\u003eThe 7A4 measures 360 by 215 by 54 millimeters (14.2 by 8.5 by 2.1 inches) and weighs a substantial 4.5 kilograms (9.9 pounds), most of it heatsink and power supply. The black and silver chassis keeps a low 2.1-inch profile for clean rack integration, onboard fusing is 2 x 50 amps, and protection covers thermal and short circuit conditions. Working voltage spans 10 to 16 volts, and input sensitivity adjusts from 900 mV to 5 V into a 10 kilohm input impedance.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-grid\"\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eTopology\u003c\/span\u003e\n      \u003ch4\u003eClass AB High Bias\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eOutput stage biased toward Class A operation for linearity and detail at every listening level, with flagship power behind it.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eComponents\u003c\/span\u003e\n      \u003ch4\u003eBurr Brown + Elna\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eAudio-grade preamp chips and capacitors selected for transparency, in a signal path built like high-end home audio.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003ePower Supply\u003c\/span\u003e\n      \u003ch4\u003eDual Symmetrical Design\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eEliminates noise and delivers the dynamic headroom that keeps demanding passages composed at volume.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003ePrecision\u003c\/span\u003e\n      \u003ch4\u003eIndividually Balanced Channels\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eAll four channels are individually calibrated for matched output, so the soundstage stays accurate left to right.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003ePurist Path\u003c\/span\u003e\n      \u003ch4\u003ePreamplifier Bypass\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eRoute past the input gain stage entirely when feeding a high-output processor, shortening the signal path further.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eMeasurements\u003c\/span\u003e\n      \u003ch4\u003e0.0035% THD, -0.5dB Bandwidth\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003e5 Hz to 100 kHz at a strict -0.5 dB window with 110 dBA signal-to-noise. Reference numbers, not marketing numbers.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-cta\"\u003e\n    \u003ch3\u003eThe Reference Front Stage Starts Here\u003c\/h3\u003e\n    \u003cp\u003eThe Revolution 7A4 is the amplifier for systems where the goal is the truth of the recording: flagship power, an audio-grade signal path, and measurements that read like home audio. Pure amplification, zero coloration.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Crescendo","offers":[{"title":"Default Title","offer_id":42442883891289,"sku":"REVOLUTION 7A4","price":1699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/crescendo-revolution-7a4-4-channel-amplifieramplifiercrescendo-1358271.webp?v=1772499912"},{"product_id":"crescendo-revolution-5a1-1-channel-amplifier","title":"Crescendo REVOLUTION 5A1 1 Channel Amplifier","description":"\u003cdiv class=\"cr-desc\"\u003e\n\u003cstyle\u003e\n  .cr-desc {\n    --cr-black: #0d0d0f;\n    --cr-charcoal: #1c1c21;\n    --cr-slate: #2a2a31;\n    --cr-orange: #f97316;\n    --cr-orange-deep: #c2410c;\n    --cr-tint: #faf6f1;\n    --cr-line: #ece4da;\n    --cr-text: #1f1f23;\n    --cr-muted: #55555e;\n    max-width: 1200px;\n    margin: 0 auto;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--cr-text);\n    line-height: 1.6;\n  }\n  .cr-desc * { box-sizing: border-box; }\n  .cr-hero {\n    background: linear-gradient(135deg, var(--cr-black) 0%, var(--cr-charcoal) 60%, var(--cr-slate) 100%);\n    color: #fff;\n    padding: 56px 44px;\n    border-radius: 14px;\n    text-align: center;\n    border-bottom: 4px solid var(--cr-orange);\n  }\n  .cr-hero .cr-eyebrow {\n    display: inline-block;\n    font-size: 13px;\n    letter-spacing: 2.5px;\n    text-transform: uppercase;\n    color: var(--cr-orange);\n    font-weight: 700;\n    margin-bottom: 16px;\n  }\n  .cr-hero h2 {\n    font-size: 34px;\n    line-height: 1.2;\n    margin: 0 0 14px;\n    color: #fff;\n    font-weight: 800;\n  }\n  .cr-hero p {\n    font-size: 18px;\n    color: #d8d8de;\n    max-width: 760px;\n    margin: 0 auto;\n  }\n  .cr-section {\n    background: #ffffff;\n    padding: 40px 44px;\n    margin-top: 26px;\n    border-radius: 14px;\n    border: 1px solid var(--cr-line);\n  }\n  .cr-section.tint { background: var(--cr-tint); }\n  .cr-section h3 {\n    font-size: 25px;\n    margin: 0 0 18px;\n    color: var(--cr-black);\n    font-weight: 800;\n  }\n  .cr-section p {\n    font-size: 16.5px;\n    color: var(--cr-text);\n    margin: 0 0 16px;\n  }\n  .cr-section p:last-child { margin-bottom: 0; }\n  .cr-highlight {\n    border-left: 4px solid var(--cr-orange);\n    background: #fff7ef;\n    padding: 20px 24px;\n    border-radius: 0 10px 10px 0;\n    margin: 22px 0 0;\n  }\n  .cr-highlight p { margin: 0; font-size: 16px; }\n  .cr-grid {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n    margin-top: 24px;\n  }\n  @media (max-width: 720px) { .cr-grid { grid-template-columns: 1fr; } }\n  .cr-card {\n    background: #ffffff;\n    border: 1px solid var(--cr-line);\n    border-radius: 12px;\n    padding: 26px;\n  }\n  .cr-card-label {\n    display: inline-block;\n    font-size: 11.5px;\n    letter-spacing: 1.5px;\n    text-transform: uppercase;\n    color: var(--cr-orange-deep);\n    font-weight: 700;\n    margin-bottom: 10px;\n  }\n  .cr-card h4 {\n    font-size: 18.5px;\n    margin: 0 0 12px;\n    color: var(--cr-black);\n    font-weight: 700;\n  }\n  .cr-card-divider {\n    width: 42px;\n    height: 3px;\n    background: var(--cr-orange);\n    border-radius: 2px;\n    margin: 0 0 14px;\n  }\n  .cr-card p { font-size: 15.5px; color: var(--cr-muted); margin: 0; }\n  .cr-power {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 16px;\n    margin-top: 22px;\n  }\n  @media (max-width: 720px) { .cr-power { grid-template-columns: 1fr; } }\n  .cr-power-cell {\n    background: linear-gradient(160deg, var(--cr-charcoal), var(--cr-black));\n    color: #fff;\n    border-radius: 12px;\n    padding: 24px 20px;\n    text-align: center;\n    border-top: 3px solid var(--cr-orange);\n  }\n  .cr-power-cell .num {\n    display: block;\n    font-size: 30px;\n    font-weight: 800;\n    line-height: 1.1;\n  }\n  .cr-power-cell .unit {\n    display: block;\n    font-size: 13px;\n    letter-spacing: 1px;\n    text-transform: uppercase;\n    color: var(--cr-orange);\n    margin-top: 8px;\n  }\n  .cr-cta {\n    background: linear-gradient(135deg, var(--cr-slate) 0%, var(--cr-charcoal) 50%, var(--cr-black) 100%);\n    color: #fff;\n    padding: 44px;\n    border-radius: 14px;\n    text-align: center;\n    margin-top: 26px;\n    border-top: 4px solid var(--cr-orange);\n  }\n  .cr-cta h3 { color: #fff; font-size: 24px; margin: 0 0 12px; font-weight: 800; }\n  .cr-cta p { color: #d8d8de; font-size: 16.5px; margin: 0 auto; max-width: 680px; }\n\u003c\/style\u003e\n\n  \u003cdiv class=\"cr-hero\"\u003e\n    \u003cspan class=\"cr-eyebrow\"\u003eCrescendo Revolution Series\u003c\/span\u003e\n    \u003ch2\u003eRevolution 5A1 | 450 Watt Monoblock Amplifier\u003c\/h2\u003e\n    \u003cp\u003eStable power, absolute control. A Class AB monoblock that delivers the same 450 watts at 4, 2, or 1 ohm, with a noise floor and damping factor that put it in reference territory.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section\"\u003e\n    \u003ch3\u003eOne Power Number, Every Load\u003c\/h3\u003e\n    \u003cp\u003eMost amplifiers make you chase impedance to find their power. The Revolution 5A1 makes the question irrelevant: 450 watts per channel at 4 ohms, 450 watts at 2 ohms, and 450 watts at 1 ohm, all rated at 14.4 volts. Whether you are running a single subwoofer, a high-output midbass, or a complex wiring configuration down to a 1-ohm minimum load, the output does not move. System planning becomes simple because the power is a constant, not a variable.\u003c\/p\u003e\n    \u003cdiv class=\"cr-power\"\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e450W\u003c\/span\u003e\u003cspan class=\"unit\"\u003eat 4 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e450W\u003c\/span\u003e\u003cspan class=\"unit\"\u003eat 2 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e450W\u003c\/span\u003e\u003cspan class=\"unit\"\u003eat 1 Ohm\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section tint\"\u003e\n    \u003ch3\u003eReference-Level Measurements\u003c\/h3\u003e\n    \u003cp\u003eThe 5A1's spec sheet reads like home audio, not car audio. Total harmonic distortion measures 0.04% at 1 watt across 20 Hz to 20 kHz. Signal-to-noise ratio reaches 122 dB at rated power (95.4 dBA by the CEA-2006 1-watt standard). The effective damping factor exceeds 500 from 20 Hz to 20 kHz, which is the grip that keeps a subwoofer cone doing exactly what the signal says and nothing more.\u003c\/p\u003e\n    \u003cp\u003eFrequency response extends from 4 Hz to 80 kHz at -3 dB, so while the 5A1 excels on subwoofer duty, it is a genuinely full-range amplifier. The Class AB design delivers clean, dynamic reproduction across the entire spectrum, with the high-resolution character the Revolution series is built around.\u003c\/p\u003e\n    \u003cdiv class=\"cr-highlight\"\u003e\n      \u003cp\u003eLike the rest of the Revolution series, the 5A1 carries no onboard filter. It is a pure power amplifier designed to take a processed signal from your DSP and amplify it without coloration.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section\"\u003e\n    \u003ch3\u003eCompact, Fused, and Ready to Work\u003c\/h3\u003e\n    \u003cp\u003eThe brushed grey aluminum chassis measures 270 by 150 by 60 millimeters (10.6 by 5.9 by 2.4 inches) at 2.3 kilograms (5.1 pounds), the same compact Revolution footprint that mounts cleanly in show builds and tight spaces alike. Onboard fusing is handled by two 30-amp fuses, and protection covers thermal and short circuit conditions.\u003c\/p\u003e\n    \u003cp\u003eInput sensitivity adjusts from 1.5 V to 7.5 V into a 25 kilohm input impedance, matched to the higher output levels of quality processors so the amplifier's full signal-to-noise advantage is preserved through the gain structure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-grid\"\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003ePower Delivery\u003c\/span\u003e\n      \u003ch4\u003eConstant 450W to 1 Ohm\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eIdentical output at 4, 2, or 1 ohm, so wiring configuration never costs you power or changes the plan.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eControl\u003c\/span\u003e\n      \u003ch4\u003eDamping Factor Above 500\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eExceptional grip on the driver from 20 Hz to 20 kHz, for tight, accurate bass with controlled cone motion.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eNoise Floor\u003c\/span\u003e\n      \u003ch4\u003e122 dB Signal-to-Noise\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eWith 0.04% THD at 1 watt, detail emerges from a silent background even at low listening levels.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eBandwidth\u003c\/span\u003e\n      \u003ch4\u003e4 Hz to 80 kHz\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eTrue full-range response in a monoblock, equally at home on a reference sub stage or a dedicated midbass.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003ePhilosophy\u003c\/span\u003e\n      \u003ch4\u003ePure Amplifier, No Filter\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eNo onboard crossover or bass boost. The DSP processes, the 5A1 amplifies, and the signal stays untouched.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eBuild\u003c\/span\u003e\n      \u003ch4\u003eCompact and Fused\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003e10.6 by 5.9 by 2.4 inch brushed grey chassis with onboard 2 x 30A fusing and thermal and short circuit protection.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-cta\"\u003e\n    \u003ch3\u003eStable Power. Absolute Control.\u003c\/h3\u003e\n    \u003cp\u003eThe Revolution 5A1 delivers one honest number at every load and the measurements to back it up. For a reference subwoofer stage or a hard-working midbass channel, this is Class AB done without compromise.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Crescendo","offers":[{"title":"Default Title","offer_id":42442885234777,"sku":"REVOLUTION 5A1","price":749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/crescendo-revolution-5a1-1-channel-amplifieramplifiercrescendo-7536101.webp?v=1772499910"},{"product_id":"crescendo-revolution-5a4-4-channel-amplifier","title":"Crescendo REVOLUTION 5A4 4 channel Amplifier","description":"\u003cdiv class=\"cr-desc\"\u003e\n\u003cstyle\u003e\n  .cr-desc {\n    --cr-black: #0d0d0f;\n    --cr-charcoal: #1c1c21;\n    --cr-slate: #2a2a31;\n    --cr-orange: #f97316;\n    --cr-orange-deep: #c2410c;\n    --cr-tint: #faf6f1;\n    --cr-line: #ece4da;\n    --cr-text: #1f1f23;\n    --cr-muted: #55555e;\n    max-width: 1200px;\n    margin: 0 auto;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--cr-text);\n    line-height: 1.6;\n  }\n  .cr-desc * { box-sizing: border-box; }\n  .cr-hero {\n    background: linear-gradient(135deg, var(--cr-black) 0%, var(--cr-charcoal) 60%, var(--cr-slate) 100%);\n    color: #fff;\n    padding: 56px 44px;\n    border-radius: 14px;\n    text-align: center;\n    border-bottom: 4px solid var(--cr-orange);\n  }\n  .cr-hero .cr-eyebrow {\n    display: inline-block;\n    font-size: 13px;\n    letter-spacing: 2.5px;\n    text-transform: uppercase;\n    color: var(--cr-orange);\n    font-weight: 700;\n    margin-bottom: 16px;\n  }\n  .cr-hero h2 {\n    font-size: 34px;\n    line-height: 1.2;\n    margin: 0 0 14px;\n    color: #fff;\n    font-weight: 800;\n  }\n  .cr-hero p {\n    font-size: 18px;\n    color: #d8d8de;\n    max-width: 760px;\n    margin: 0 auto;\n  }\n  .cr-section {\n    background: #ffffff;\n    padding: 40px 44px;\n    margin-top: 26px;\n    border-radius: 14px;\n    border: 1px solid var(--cr-line);\n  }\n  .cr-section.tint { background: var(--cr-tint); }\n  .cr-section h3 {\n    font-size: 25px;\n    margin: 0 0 18px;\n    color: var(--cr-black);\n    font-weight: 800;\n  }\n  .cr-section p {\n    font-size: 16.5px;\n    color: var(--cr-text);\n    margin: 0 0 16px;\n  }\n  .cr-section p:last-child { margin-bottom: 0; }\n  .cr-highlight {\n    border-left: 4px solid var(--cr-orange);\n    background: #fff7ef;\n    padding: 20px 24px;\n    border-radius: 0 10px 10px 0;\n    margin: 22px 0 0;\n  }\n  .cr-highlight p { margin: 0; font-size: 16px; }\n  .cr-grid {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n    margin-top: 24px;\n  }\n  @media (max-width: 720px) { .cr-grid { grid-template-columns: 1fr; } }\n  .cr-card {\n    background: #ffffff;\n    border: 1px solid var(--cr-line);\n    border-radius: 12px;\n    padding: 26px;\n  }\n  .cr-card-label {\n    display: inline-block;\n    font-size: 11.5px;\n    letter-spacing: 1.5px;\n    text-transform: uppercase;\n    color: var(--cr-orange-deep);\n    font-weight: 700;\n    margin-bottom: 10px;\n  }\n  .cr-card h4 {\n    font-size: 18.5px;\n    margin: 0 0 12px;\n    color: var(--cr-black);\n    font-weight: 700;\n  }\n  .cr-card-divider {\n    width: 42px;\n    height: 3px;\n    background: var(--cr-orange);\n    border-radius: 2px;\n    margin: 0 0 14px;\n  }\n  .cr-card p { font-size: 15.5px; color: var(--cr-muted); margin: 0; }\n  .cr-power {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 16px;\n    margin-top: 22px;\n  }\n  @media (max-width: 720px) { .cr-power { grid-template-columns: 1fr; } }\n  .cr-power-cell {\n    background: linear-gradient(160deg, var(--cr-charcoal), var(--cr-black));\n    color: #fff;\n    border-radius: 12px;\n    padding: 24px 20px;\n    text-align: center;\n    border-top: 3px solid var(--cr-orange);\n  }\n  .cr-power-cell .num {\n    display: block;\n    font-size: 30px;\n    font-weight: 800;\n    line-height: 1.1;\n  }\n  .cr-power-cell .unit {\n    display: block;\n    font-size: 13px;\n    letter-spacing: 1px;\n    text-transform: uppercase;\n    color: var(--cr-orange);\n    margin-top: 8px;\n  }\n  .cr-cta {\n    background: linear-gradient(135deg, var(--cr-slate) 0%, var(--cr-charcoal) 50%, var(--cr-black) 100%);\n    color: #fff;\n    padding: 44px;\n    border-radius: 14px;\n    text-align: center;\n    margin-top: 26px;\n    border-top: 4px solid var(--cr-orange);\n  }\n  .cr-cta h3 { color: #fff; font-size: 24px; margin: 0 0 12px; font-weight: 800; }\n  .cr-cta p { color: #d8d8de; font-size: 16.5px; margin: 0 auto; max-width: 680px; }\n\u003c\/style\u003e\n\n  \u003cdiv class=\"cr-hero\"\u003e\n    \u003cspan class=\"cr-eyebrow\"\u003eCrescendo Revolution Series\u003c\/span\u003e\n    \u003ch2\u003eRevolution 5A4 | 4-Channel SQ Amplifier\u003c\/h2\u003e\n    \u003cp\u003eA pure Class AB High Bias power amplifier built for sound quality competition. No crossovers, no coloration, no shortcuts. Just full-bodied, articulate amplification that separates winning systems from the rest.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section\"\u003e\n    \u003ch3\u003eCompetition-Grade Power, Honestly Rated\u003c\/h3\u003e\n    \u003cp\u003eThe Revolution 5A4 delivers 75 watts per channel at 4 ohms, 125 watts per channel at 2 ohms, and 210 watts per channel bridged at 4 ohms, all rated at 14.4 volts. That is real Class AB High Bias power with the dynamic headroom to render full-bodied vocals and articulate detail at competition judging levels, with a minimum speaker load of 2 ohms.\u003c\/p\u003e\n    \u003cp\u003eThe numbers behind the power tell the SQ story: 0.08% total harmonic distortion at 1 watt across the audible band, a 108 dB signal-to-noise ratio at rated power, channel separation of 58 dB, and an effective damping factor above 150 from 20 Hz to 20 kHz for tight, controlled driver behavior.\u003c\/p\u003e\n    \u003cdiv class=\"cr-power\"\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e75W x 4\u003c\/span\u003e\u003cspan class=\"unit\"\u003eRMS at 4 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e125W x 4\u003c\/span\u003e\u003cspan class=\"unit\"\u003eRMS at 2 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"cr-power-cell\"\u003e\n\u003cspan class=\"num\"\u003e210W x 2\u003c\/span\u003e\u003cspan class=\"unit\"\u003eBridged at 4 Ohms\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section tint\"\u003e\n    \u003ch3\u003eA Pure Amplifier, Built for DSP Systems\u003c\/h3\u003e\n    \u003cp\u003eThe Revolution 5A4 deliberately omits onboard crossovers and bass boost. In a modern SQ build, filtering, time alignment, and EQ belong in the DSP, and anything the amplifier adds to the signal path is something the processor has to fight. By keeping the signal path pure, the 5A4 hands your DSP exactly what it sent: nothing added, nothing subtracted, amplified with authority.\u003c\/p\u003e\n    \u003cp\u003eThe high-resolution signal path carries a frequency response of 7 Hz to 40 kHz at -3 dB, preserving the detail and spatial information in high-resolution sources that narrower amplifiers leave behind. Input sensitivity adjusts from 350 mV to 5 V with a 20 kilohm input impedance, matching cleanly to virtually any processor output.\u003c\/p\u003e\n    \u003cdiv class=\"cr-highlight\"\u003e\n      \u003cp\u003ePair the Revolution 5A4 with a quality DSP such as a Goldhorn processor and the amplifier becomes the foundation of a true competition signal chain: processing handled digitally, power delivered purely.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-section\"\u003e\n    \u003ch3\u003eClass AB High Bias: The SQ Topology\u003c\/h3\u003e\n    \u003cp\u003eThe 5A4 runs a high-bias Class AB output stage, holding the output devices closer to Class A operation than conventional AB designs. The benefit is linearity: lower crossover distortion, better behavior at low listening levels where detail usually disappears, and the refined, dynamic musical character that SQ judges reward.\u003c\/p\u003e\n    \u003cp\u003eThe brushed grey aluminum chassis measures 270 by 150 by 60 millimeters (10.6 by 5.9 by 2.4 inches) at 2.1 kilograms (4.6 pounds), compact enough to mount cleanly in a show build. Protection covers thermal and short circuit conditions. Note that the 5A4 has no onboard fuse, so external fusing at the battery and near the amplifier is required, exactly as a serious installer would plan anyway.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-grid\"\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eTopology\u003c\/span\u003e\n      \u003ch4\u003eClass AB High Bias\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eOutput stage biased toward Class A operation for lower crossover distortion and full detail at low listening levels.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eSignal Path\u003c\/span\u003e\n      \u003ch4\u003eHigh-Resolution by Design\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003e7 Hz to 40 kHz response preserves every detail in high-resolution sources, with 0.08% THD and 108 dB S\/N.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003ePhilosophy\u003c\/span\u003e\n      \u003ch4\u003eNo Crossovers, No Coloration\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eA pure power amplifier that leaves filtering and EQ to the DSP, where they belong in a modern SQ build.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eControl\u003c\/span\u003e\n      \u003ch4\u003eDamping Factor Above 150\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003eEffective damping from 20 Hz to 20 kHz keeps drivers controlled, for the impactful, precise sound competition demands.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eFlexibility\u003c\/span\u003e\n      \u003ch4\u003e2-Ohm Stable, Bridgeable\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003e125 watts per channel at 2 ohms or 210 watts x 2 bridged at 4 ohms, with input sensitivity from 350 mV to 5 V.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cr-card\"\u003e\n      \u003cspan class=\"cr-card-label\"\u003eBuild\u003c\/span\u003e\n      \u003ch4\u003eCompact Brushed Aluminum\u003c\/h4\u003e\n      \u003cdiv class=\"cr-card-divider\"\u003e\u003c\/div\u003e\n      \u003cp\u003e10.6 by 5.9 by 2.4 inch brushed grey chassis with thermal and short circuit protection, sized for clean show installs.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"cr-cta\"\u003e\n    \u003ch3\u003eThe Foundation of a Winning System\u003c\/h3\u003e\n    \u003cp\u003eThe Revolution 5A4 does one thing without compromise: amplify. Give it a clean signal from your processor and it delivers the headroom, control, and refinement that put systems on podiums.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Crescendo","offers":[{"title":"Default Title","offer_id":42442886316121,"sku":"5A4","price":779.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/SpecificationAmplifierRevolution5A4B_01.avif?v=1780522314"},{"product_id":"crescendo-revolution-3a4-4-channel-amplifier","title":"Crescendo REVOLUTION 3A4 4 channel Amplifier","description":"\u003cp class=\"text-lg mb-6 leading-relaxed\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCrescendo REVOLUTION 3A4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erepresents the pinnacle of 4-channel Class AB amplifier engineering, delivering pure analog sound reproduction with exceptional power and clarity. This professional-grade amplifier produces 4 x 70 watts RMS at 4 ohms through advanced Class AB topology, ensuring rich, vibrant sound with the characteristic fidelity that analog amplifiers are renowned for. Manufactured by \u003ca href=\"https:\/\/audiointensity.com\/collections\/crescendo-car-audio\" rel=\"noopener\" target=\"_blank\"\u003eCrescendo Car Audio\u003c\/a\u003e, a leader in competition-level automotive audio solutions, this amplifier combines traditional Class AB warmth with modern engineering precision for discerning audiophiles and professional installations.\u003c\/p\u003e\n\u003ch3 class=\"text-2xl font-semibold mt-8 mb-4 text-blue-700\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePure Class AB Sound Excellence\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"mb-6 leading-relaxed\"\u003eProfessional car audio enthusiasts and Sound Quality (SQ) competitors demand the natural warmth and musicality that only pure Class AB amplification can provide, and the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCrescendo REVOLUTION 3A4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers exactly that authentic analog experience. With its direct gain design and high-resolution playback capability, this amplifier preserves every nuance of the original recording while adding the harmonic richness that makes Class AB topology the preferred choice for critical listening applications. The sophisticated analog circuitry ensures transparent sound reproduction that brings music to life with clarity, depth, and emotional connection.\u003c\/p\u003e\n\u003ch3 class=\"text-2xl font-semibold mt-8 mb-4 text-blue-700\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHigh-Resolution Audio Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"mb-6 leading-relaxed\"\u003eAt the heart of this amplifier lies advanced circuitry specifically engineered for flawless playback of high-resolution audio files, making it the perfect choice for modern vehicles equipped with digital audio sources. The Revolution 3A4's wide frequency response and low distortion characteristics ensure that every detail from high-bitrate recordings is preserved and reproduced with stunning accuracy. This makes it ideal for audiophiles who demand the ultimate in sound quality from their premium audio collections, whether streaming high-resolution content or playing audiophile-grade recordings.\u003c\/p\u003e\n\u003ch3 class=\"text-2xl font-semibold mt-8 mb-4 text-blue-700\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCompact Competition-Grade Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"mb-6 leading-relaxed\"\u003eDespite its substantial power output and premium construction, the Revolution 3A4 maintains a remarkably compact footprint of just 270mm x 150mm x 60mm, making installation practical in even the most space-constrained vehicles. The precision-engineered chassis features premium cosmetics with a brushed aluminum finish and distinctive black and red accent lines that reflect the amplifier's high-performance capabilities. At just 2.4kg, this amplifier delivers maximum power while minimizing installation complexity, allowing enthusiasts to achieve competition-level performance without compromising valuable vehicle space or requiring extensive mounting modifications.\u003c\/p\u003e","brand":"Crescendo","offers":[{"title":"Default Title","offer_id":42442888380505,"sku":"REVOLUTION 3A4","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/crescendo-revolution-3a4-4-channel-amplifieramplifiercrescendo-6738386.webp?v=1772499973"},{"product_id":"tru-technologies-tungsten-grande-class-ab-4-channel-amplifier","title":"Tru Technologies Tungsten Grande Class AB 4 Channel Amplifier","description":"\u003ch3 class=\"text-2xl font-semibold mb-4 text-blue-600\"\u003eThe Pinnacle of American Car Audio Engineering\u003c\/h3\u003e\n\u003cp class=\"text-lg mb-6 leading-relaxed\"\u003eNew for 2026, the Tru Technology Tungsten Grande TG-RS4 HV v2.5 represents the ultimate evolution of the renowned Tungsten series, delivering uncompromising sound quality in a meticulously crafted 4-channel Class AB amplifier. Individually hand-built in La Crescenta, California, this amplifier embodies the perfect marriage of old school aesthetics with cutting-edge audio engineering, offering enthusiasts the legendary \"slam\" that has made Tru Technology a revered name among audiophiles worldwide.\u003c\/p\u003e\n\u003ch3 class=\"text-2xl font-semibold mb-4 text-blue-600\"\u003eEngineering Excellence Without Compromise\u003c\/h3\u003e\n\u003cp class=\"text-lg mb-6 leading-relaxed\"\u003eBuilt upon the foundation of Tru Technology's acclaimed BILLET and STEEL series heritage, the TG-RS4 HV v2.5 incorporates years of research and development to achieve a perfect balance of power, refinement, and cost-effectiveness. The amplifier features a calculated sequence of SMD and through-hole components, optimized for maximum performance while maintaining the company's unwavering commitment to sound quality. Every connection is strategically positioned along one side of the amplifier for ultra-clean installations and effortless adjustments.\u003c\/p\u003e\n\u003ch3 class=\"text-2xl font-semibold mb-4 text-blue-600\"\u003ePrecision Craftsmanship and Thermal Management\u003c\/h3\u003e\n\u003cp class=\"text-lg mb-6 leading-relaxed\"\u003eThe TG-RS4 HV v2.5 showcases a thermally optimized multi-piece heatsink design that combines sleek classic lines with superior heat dissipation. Constructed from locally sourced extruded aluminum—not overseas die-cast materials—each heatsink undergoes black anodization and precision CNC machining for an impeccable fit and finish. The 4-layer circuit board design enhances signal paths to deliver immense detail with incredible dynamics, while the Class AB topology ensures no thermal rollback, maintaining consistent power delivery even under demanding conditions.\u003c\/p\u003e\n\u003ch3 class=\"text-2xl font-semibold mb-4 text-blue-600\"\u003eThe Tungsten Grande Advantage\u003c\/h3\u003e\n\u003cp class=\"text-lg leading-relaxed\"\u003eAs the \"big brother\" of the standard Tungsten amplifier, the Grande series delivers enhanced power, greater dynamics, and a higher level of refinement that satisfies the most discerning audiophiles. With its compact design philosophy, the TG-RS4 HV v2.5 excels in challenging installation scenarios without sacrificing the meticulous sound quality and reliability that define Tru Technology's reputation. This amplifier creates a new standard for both novice and experienced enthusiasts, offering world-class fidelity, amazing sonic transparency, and dynamic power that transforms any audio system into an extraordinary listening experience.\u003c\/p\u003e","brand":"Tru Technology","offers":[{"title":"Default Title","offer_id":42565846401113,"sku":"TG-RS4 HV v2.5","price":2399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/tru-technologies-tungsten-grande-class-ab-4-channel-amplifieramplifiertru-technology-6010147.webp?v=1761970726"},{"product_id":"tru-technologies-tungsten-4-channel-amplifier","title":"Tru Technologies Tungsten 4 Channel Amplifier","description":"\u003ch2\u003eOld School Soul Meets Modern Precision\u003c\/h2\u003e\n\u003cp\u003eThe [Tru Technology Tungsten T4](http:\/\/googleusercontent.com\/shopping_content\/1_link) is engineered for those who remember the golden era of car audio—when amplifiers were built with soul, authority, and \"slam.\" While the Grande series is designed for maximum current, the standard T4 focuses on delivering a refined, high-fidelity experience in a more accessible footprint. Hand-built in La Crescenta, California, this 4-channel Class AB powerhouse provides a conservative 100W per channel at 4 ohms, offering the perfect foundation for an active front stage or a high-end component system.\u003c\/p\u003e\n\n\u003ch2\u003eAdvanced 4-Layer PCB and Thermal Integrity\u003c\/h2\u003e\n\u003cp\u003eInternal excellence is the hallmark of the Tungsten series. The T4 utilizes a 4-layer FR4 epoxy circuit board, a significant upgrade over standard boards that allows for shorter signal paths and superior noise rejection. This design ensures that the micro-dynamics of your music remain intact, even in the noisy environment of a vehicle. Coupled with a thermally optimized, multi-piece CNC-machined aluminum heatsink, the T4 operates with zero thermal rollback. This means you get consistent, uncompressed power from the first track to the last, without the \"safety\" throttling found in lesser designs.\u003c\/p\u003e\n\n\u003ch2\u003eThe Experience: Transparency and Mid-Bass Authority\u003c\/h2\u003e\n\u003cp\u003eThe sonic character of the [Tungsten T4](http:\/\/googleusercontent.com\/shopping_content\/2_link) is best described as clinical yet musical. It possesses an incredible ability to control mid-bass drivers, providing the \"impact\" enthusiasts crave, while maintaining a transparent high-frequency response that reveals the smallest details in a recording. With all power and signal connections located on a single side, the T4 is an installer’s dream, allowing for an ultra-clean, symmetrical layout. Whether you are building your first high-end system or are a seasoned competitor, the T4 offers world-class American craftsmanship and legendary performance.\u003c\/p\u003e\n\nhttp:\/\/googleusercontent.com\/shopping_content\/3_card","brand":"Tru Technology","offers":[{"title":"Default Title","offer_id":42614384787545,"sku":"TS-4 HV v2.5","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/tru-technologies-tungsten-4-channel-amplifieramplifiertru-technology-2664348.webp?v=1770018966"},{"product_id":"tru-technologies-tungsten-2-channel-amplifier","title":"Tru Technologies Tungsten 2 Channel Amplifier","description":"\u003ch2\u003eThe Gateway to High-Fidelity American Audio\u003c\/h2\u003e\n\u003cp\u003eThe Tru Technology Tungsten T2 represents the starting point for those entering the world of elite automotive sound. While the \"Grande\" series focuses on raw, high-current power, the standard Tungsten T2 is engineered for the purist who values surgical detail and a compact footprint without sacrificing the legendary \"slam\" that Tru is known for. Hand-built in La Crescenta, California, the T2 delivers a clean, robust 175W per channel at 4 ohms, providing the perfect balance of finesse and authority for a premium front stage.\u003c\/p\u003e\n\n\u003ch2\u003eCalculated Engineering and Discrete Topology\u003c\/h2\u003e\n\u003cp\u003eUnlike the mass-produced, chip-based amplifiers that flood the market, the T2 utilizes a meticulously calculated sequence of high-end SMD and through-hole components. This hybrid approach ensures the shortest signal path possible while maintaining the soul of a classic Class AB design. Built on a heavy-duty 4-layer FR4 epoxy circuit board, the T2 is designed to minimize interference and maximize heat dissipation. With zero thermal rollback, the T2 doesn't use \"safety\" circuits to throttle your performance; it relies on its thermally optimized, CNC-machined aluminum heatsink to maintain stability during the most demanding listening sessions.\u003c\/p\u003e\n\n\u003ch2\u003eThe Experience: Sonic Transparency and Absolute Control\u003c\/h2\u003e\n\u003cp\u003eOn the bench, the Tungsten T2 is defined by its transparency and low noise floor. It offers a \"clinical\" level of detail that reveals nuances in recordings often lost to lesser equipment, yet it retains a musicality that keeps the listener engaged for hours. With all connections located on a single side, the T2 allows for an ultra-clean installation, making it the ideal choice for compact luxury builds or high-end active systems. Whether you are driving a pair of audiophile components or a dedicated set of mid-ranges, the T2 provides the grip and dynamic range required for a world-class listening experience.\u003c\/p\u003e","brand":"Tru Technology","offers":[{"title":"Default Title","offer_id":42614392881241,"sku":"TS-2 HV v2.5","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/tru-technologies-tungsten-2-channel-amplifieramplifiertru-technology-5081873.webp?v=1770018966"},{"product_id":"us-acoustics-lanna-6-channel-class-ab-amplifier-6-x-150w","title":"US Acoustics Lanna | 6 Channel Class AB Amplifier | 6 x 150w","description":"\u003cstyle\u003e\n  .usa-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .usa-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #b91c1c !important; }\n  .usa-eyebrow { color: #ef4444 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .usa-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .usa-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .usa-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .usa-badge { background: #b91c1c !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .usa-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #b91c1c !important; }\n  .usa-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #b91c1c !important; padding-left: 12px; }\n  .usa-wrap h4 { color: #ef4444 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .usa-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .usa-callout { background: #27272a !important; border: 1px solid #ef4444 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .usa-callout p { color: #f4f4f5 !important; margin: 0; }\n  .usa-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .usa-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .usa-stat .usa-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .usa-stat .usa-statlabel { color: #ef4444 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .usa-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #b91c1c !important; }\n  .usa-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .usa-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"usa-wrap\"\u003e\n\n  \u003cdiv class=\"usa-hero\"\u003e\n    \u003cp class=\"usa-eyebrow\"\u003eUS Acoustics Analog 6-Channel Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Lanna 6-Channel Class AB Amplifier\u003c\/h2\u003e\n    \u003cp\u003eAn audiophile six-channel built for one job: powering a complete DSP-controlled active front stage from a single chassis. Direct input, no onboard crossover, just clean Full Complementary Class AB power times six.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e150W x 6 @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e250W x 6 @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e500W x 3 Bridged @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge usa-badge-alt\"\u003e2-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eThe One-Amplifier Active System\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Lanna delivers 150 watts RMS per channel into 4 ohms across all six channels, 250 watts per channel into 2 ohms, and 500 watts per bridged pair into 4 ohms. That is enough channel count and enough power to run a full active 3-way front stage, tweeters, midranges, and midbass, from one amplifier, with every driver getting real Class AB power instead of leftover channels.\u003c\/p\u003e\n  \u003cp\u003eUS Acoustics builds the Lanna on the same Full Complementary Class AB philosophy it has refined for over 25 years, here with high-end op amps in the signal path. The measurements hold up across all six channels: total harmonic distortion below 0.01 percent, signal-to-noise ratio above 103 dB, channel separation above 92 dB, and a damping factor greater than 200 at 100 Hz into 4 ohms.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;103 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eS\/N Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026lt;0.01%\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eTHD\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;200\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eDamping Factor\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;92 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eChannel Separation\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eDirect Input, No Crossover, On Purpose\u003c\/h3\u003e\n  \u003cp\u003eThe Lanna has no onboard crossover. That is not a missing feature, it is the design. In a modern sound quality build, crossover points, slopes, time alignment, and EQ all live in the DSP, where they belong. Analog filters in the amplifier would only add components to the signal path that the processor makes redundant. The Lanna takes the signal straight in, amplifies it, and stays out of the way. This is exactly how we pair it: six channels of Goldhorn DSP output feeding six channels of clean Class AB power.\u003c\/p\u003e\n\n  \u003ch3\u003eDiscrete Gain Control for Every Channel\u003c\/h3\u003e\n  \u003cp\u003eEach of the six channels has its own gain control. In an active system that means level matching tweeters, midranges, and midbass independently at the amplifier, setting sensible structure before the DSP does its fine work. Input sensitivity ranges from 200 mV to 6.0 volts, so the Lanna accepts everything from modest head unit outputs to high-voltage processor outputs.\u003c\/p\u003e\n\n  \u003ch3\u003eConfiguration Flexibility\u003c\/h3\u003e\n  \u003ch4\u003eActive 3-Way Front Stage\u003c\/h4\u003e\n  \u003cp\u003eThe signature application. Channels 1 and 2 on tweeters, 3 and 4 on midranges, 5 and 6 on midbass, with the DSP handling all frequency division. One power run, one ground, one mounting footprint for the entire front stage.\u003c\/p\u003e\n  \u003ch4\u003e2-Way Active Plus Subwoofer\u003c\/h4\u003e\n  \u003cp\u003eFour channels on a component front stage run active, with channels 5 and 6 bridged to deliver 500 watts into a single 4-ohm subwoofer. A complete system from one chassis.\u003c\/p\u003e\n  \u003ch4\u003eBridged Power Where You Need It\u003c\/h4\u003e\n  \u003cp\u003eEach channel pair bridges to 500 watts at 4 ohms, up to three bridged channels. That opens the door to high-power midbass duty or multi-woofer configurations while keeping the rest of the channels in stereo.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003ePlan the install:\u003c\/strong\u003e the Lanna is a 25.55 inch long chassis, the largest footprint in the US Acoustics analog line. Measure your amp rack before ordering. Recommended fusing is 180A, not included, so budget for a properly rated ANL or MIDI fuse holder near the battery.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt Like the Rest of the Family\u003c\/h3\u003e\n  \u003cp\u003eAngled terminals keep wiring clean in show-quality installations. Protection circuitry covers DC, short circuit, thermal, and overload conditions with diagnostic LEDs for fast troubleshooting. Every Lanna sold by Audio Intensity is brand new from US Acoustics with a 2-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-cta\"\u003e\n    \u003ch3\u003eAuthorized US Acoustics Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the US Acoustics Lanna fast from Tullahoma, Tennessee, with real installer support before and after the sale. Building an active system around it? We design, wire, and tune these setups every week, ask us anything from crossover points to gain structure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42825365684313,"sku":"Lanna","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-lanna-6-channel-class-ab-amplifier-6-x-150wamplifierus-acoustics-5480515.jpg?v=1764434071"},{"product_id":"us-acoustics-barbara-ann-4-channel-class-ab-amplifier-4-x-100w","title":"US Acoustics Barbara Ann | 4 Channel Class AB Amplifier | 4 x 100w","description":"\u003cstyle\u003e\n  .usa-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .usa-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #b91c1c !important; }\n  .usa-eyebrow { color: #ef4444 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .usa-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .usa-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .usa-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .usa-badge { background: #b91c1c !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .usa-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #b91c1c !important; }\n  .usa-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #b91c1c !important; padding-left: 12px; }\n  .usa-wrap h4 { color: #ef4444 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .usa-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .usa-callout { background: #27272a !important; border: 1px solid #ef4444 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .usa-callout p { color: #f4f4f5 !important; margin: 0; }\n  .usa-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .usa-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .usa-stat .usa-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .usa-stat .usa-statlabel { color: #ef4444 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .usa-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #b91c1c !important; }\n  .usa-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .usa-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"usa-wrap\"\u003e\n\n  \u003cdiv class=\"usa-hero\"\u003e\n    \u003cp class=\"usa-eyebrow\"\u003eUS Acoustics Analog 4-Channel Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Barbara Ann 4-Channel Class AB Amplifier\u003c\/h2\u003e\n    \u003cp\u003eThe audiophile four-channel. 100 honest watts per channel, high-end op amps, and a crossover set wide enough to run a real active front stage.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e100W x 4 @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e175W x 4 @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e350W x 2 Bridged @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge usa-badge-alt\"\u003e2-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eFour Channels, Built for Sound Quality\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Barbara Ann delivers 100 watts RMS per channel into 4 ohms, 175 watts RMS per channel into 2 ohms, and 350 watts RMS x 2 bridged into 4 ohms, all rated at 14.4 volts. It pairs the Full Complementary Class AB output stage with audiophile high-end op amps in the signal path, the same sound-quality-first approach found in the six-channel Lanna.\u003c\/p\u003e\n  \u003cp\u003eThe measurements reflect the intent: total harmonic distortion below 0.01 percent, signal-to-noise above 97 dB, channel separation above 92 dB, and a damping factor greater than 200 at 100 Hz into 4 ohms. This is double the power of the Lisa with meaningfully higher measured performance across the board, the four-channel for a listener who cares how the system sounds, not just how loud it gets.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026lt;0.01%\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eTHD\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;97 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eS\/N Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;92 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eChannel Separation\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;200\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eDamping Factor\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eA Crossover Set That Can Run Active\u003c\/h3\u003e\n  \u003cp\u003eThis is where the Barbara Ann separates itself. Each channel pair carries independent Butterworth filters with unusually wide ranges. The 12 dB per octave high-pass covers 15 to 500 Hz and 50 Hz to 3 kHz, and the 24 dB per octave low-pass covers 50 to 500 Hz and 500 Hz to 5 kHz. That low-pass reaching 5 kHz is the key: it means one channel pair can run midrange duty while the other handles midbass, giving you a true active 2-way front stage from the amplifier alone, no external processor required. Add a Goldhorn DSP if you want time alignment and EQ on top, but the Barbara Ann can stand on its own filters in a way most four-channels cannot.\u003c\/p\u003e\n\n  \u003ch3\u003eThree Ways to Run the Barbara Ann\u003c\/h3\u003e\n  \u003ch4\u003eActive 2-Way Front Stage\u003c\/h4\u003e\n  \u003cp\u003eOne channel pair on tweeters or midranges, the other on midbass, each with its own crossover. A complete active front stage with 100 watts to every driver.\u003c\/p\u003e\n  \u003ch4\u003ePremium Four-Speaker System\u003c\/h4\u003e\n  \u003cp\u003eFront and rear pairs each get 100 watts of clean, low distortion Class AB power, a serious upgrade for a full-range four-speaker system.\u003c\/p\u003e\n  \u003ch4\u003eFront Stage Plus Bridged Subwoofer\u003c\/h4\u003e\n  \u003cp\u003eRun a component front stage on channels 1 and 2, bridge channels 3 and 4 to 350 watts for a single subwoofer, and you have a complete high-quality system from one amplifier.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eInstall notes:\u003c\/strong\u003e the Barbara Ann measures 17.7 x 8.9 x 2.2 inches with three 35A onboard fuses. Class AB runs warmer than Class D, so mount it with airflow in mind. Angled terminals keep the wiring clean in show-quality installations.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to the US Acoustics Standard\u003c\/h3\u003e\n  \u003cp\u003eProtection circuitry covers DC, short circuit, thermal, and overload conditions, with diagnostic LEDs for fast troubleshooting. Every Barbara Ann sold by Audio Intensity is brand new from US Acoustics with a 2-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-cta\"\u003e\n    \u003ch3\u003eAuthorized US Acoustics Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the US Acoustics Barbara Ann fast from Tullahoma, Tennessee, with real installer support before and after the sale. Thinking about running it active? Tell us your speakers and we will help you set crossover points that get the most from this amplifier.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42858709549145,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-barbara-ann-4-channel-class-ab-amplifier-4-x-100wamplifierus-acoustics-2667976.jpg?v=1764434179"},{"product_id":"us-acoustics-lisa-4-channel-class-ab-amplifier-4-x-50w","title":"US Acoustics Lisa | 4 Channel Class AB Amplifier | 4 x 50w","description":"\u003cstyle\u003e\n  .usa-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .usa-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #b91c1c !important; }\n  .usa-eyebrow { color: #ef4444 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .usa-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .usa-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .usa-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .usa-badge { background: #b91c1c !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .usa-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #b91c1c !important; }\n  .usa-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #b91c1c !important; padding-left: 12px; }\n  .usa-wrap h4 { color: #ef4444 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .usa-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .usa-callout { background: #27272a !important; border: 1px solid #ef4444 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .usa-callout p { color: #f4f4f5 !important; margin: 0; }\n  .usa-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .usa-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .usa-stat .usa-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .usa-stat .usa-statlabel { color: #ef4444 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .usa-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #b91c1c !important; }\n  .usa-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .usa-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"usa-wrap\"\u003e\n\n  \u003cdiv class=\"usa-hero\"\u003e\n    \u003cp class=\"usa-eyebrow\"\u003eUS Acoustics Analog 4-Channel Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Lisa 4-Channel Class AB Amplifier\u003c\/h2\u003e\n    \u003cp\u003eHonest Full Complementary Class AB power for a complete four-speaker system, in a chassis barely over a foot long. The most accessible way into real US Acoustics analog sound.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e50W x 4 @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e85W x 4 @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e170W x 2 Bridged @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge usa-badge-alt\"\u003e2-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eReal Class AB Power for the Whole Vehicle\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Lisa delivers 50 watts RMS per channel into 4 ohms and 85 watts RMS per channel into 2 ohms across four channels, rated honestly at 14.4 volts. Bridged, it produces 170 watts RMS x 2 into 4 ohms. That is genuine Full Complementary Class AB output on every speaker in the vehicle, the same low distortion topology US Acoustics has built for over 25 years, with total harmonic distortion below 0.01 percent.\u003c\/p\u003e\n  \u003cp\u003eFifty clean watts per channel transforms a factory-grade system. Most stock head units produce under 20 watts per channel with audible distortion well before full volume. The Lisa replaces that with low distortion power and headroom that lets aftermarket speakers do what they were designed to do.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026lt;0.01%\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eTHD\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;95 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eS\/N Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;85 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eChannel Separation\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;100\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eDamping Factor\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eIndependent Butterworth Crossovers on Each Pair\u003c\/h3\u003e\n  \u003cp\u003eChannels 1 and 2 and channels 3 and 4 carry independent Butterworth crossover filters. The 12 dB per octave high-pass covers ranges from 15 to 500 Hz and 50 Hz to 3 kHz, and the 24 dB per octave low-pass sweeps from 55 Hz to 3.5 kHz. Those wide ranges give the Lisa flexibility well beyond basic front and rear duty, including active 2-way component configurations with the right system design. There is no bass boost, subsonic filter, or phase control on this model.\u003c\/p\u003e\n\n  \u003ch3\u003eThree Ways to Run the Lisa\u003c\/h3\u003e\n  \u003ch4\u003eFour-Speaker System Upgrade\u003c\/h4\u003e\n  \u003cp\u003eThe classic configuration. Front and rear pairs each get 50 watts of clean Class AB power, a night and day step up from head unit power for a daily driver.\u003c\/p\u003e\n  \u003ch4\u003eFront Stage Plus Bridged Rear\u003c\/h4\u003e\n  \u003cp\u003eChannels 1 and 2 on a front component set, channels 3 and 4 bridged to 170 watts on a small sealed subwoofer. A complete starter sound quality system from one compact amplifier.\u003c\/p\u003e\n  \u003ch4\u003eFully Bridged 2-Channel\u003c\/h4\u003e\n  \u003cp\u003eBoth pairs bridged delivers 170 watts x 2 into 4 ohms, serious power for a quality component set in a simple stereo configuration.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eCompact by design:\u003c\/strong\u003e at 12.4 x 8.9 x 2.2 inches, the Lisa fits under seats and in tight enclosures where full-size amplifiers will not. Internal fusing is 2 x 25A. Docking Pads reduce vibration transfer to extend amplifier life.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to the Same Standard as the Big Amps\u003c\/h3\u003e\n  \u003cp\u003eAngled terminals for clean wiring, DC, short circuit, thermal, and overload protection with diagnostic LEDs, and the same 2-year warranty that covers the entire US Acoustics line through authorized dealers. Every Lisa sold by Audio Intensity is brand new from US Acoustics.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-cta\"\u003e\n    \u003ch3\u003eAuthorized US Acoustics Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the US Acoustics Lisa fast from Tullahoma, Tennessee, with real installer support before and after the sale. Not sure if 50 watts per channel is right for your speakers? Ask us. We match amplifiers to systems every day, and we will tell you the truth about what you need.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42858718953561,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/268-9004_HR_0.default.avif?v=1780789493"},{"product_id":"us-acoustics-andrea-2-channel-class-ab-amplifier-2-x-150w","title":"US Acoustics Andrea | 2 Channel Class AB Amplifier | 2 x 150w","description":"\u003cstyle\u003e\n  .usa-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .usa-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #b91c1c !important; }\n  .usa-eyebrow { color: #ef4444 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .usa-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .usa-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .usa-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .usa-badge { background: #b91c1c !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .usa-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #b91c1c !important; }\n  .usa-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #b91c1c !important; padding-left: 12px; }\n  .usa-wrap h4 { color: #ef4444 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .usa-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .usa-callout { background: #27272a !important; border: 1px solid #ef4444 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .usa-callout p { color: #f4f4f5 !important; margin: 0; }\n  .usa-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .usa-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .usa-stat .usa-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .usa-stat .usa-statlabel { color: #ef4444 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .usa-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #b91c1c !important; }\n  .usa-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .usa-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"usa-wrap\"\u003e\n\n  \u003cdiv class=\"usa-hero\"\u003e\n    \u003cp class=\"usa-eyebrow\"\u003eUS Acoustics Analog 2-Channel Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Andrea 2-Channel Class AB Amplifier\u003c\/h2\u003e\n    \u003cp\u003eOld school Full Complementary Class AB power with modern flexibility. Stereo for a serious front stage, or bridged mono for a single subwoofer.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e150W x 2 @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e250W x 2 @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e500W x 1 Bridged @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge usa-badge-alt\"\u003e2-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eReal Class AB Power, Built the Old School Way\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Andrea is a Full Complementary Class AB 2-channel amplifier rated at 150 watts RMS per channel into 4 ohms and 250 watts RMS per channel into 2 ohms, with 500 watts RMS available bridged into a 4-ohm mono load. US Acoustics has built amplifiers around this design philosophy for over 25 years: low distortion analog output stages tuned for sound quality first.\u003c\/p\u003e\n  \u003cp\u003eThe numbers back up the approach. Total harmonic distortion measures less than 0.01 percent, signal-to-noise ratio exceeds 103 dB, and channel separation exceeds 91 dB. Frequency response runs 10 Hz to 30 kHz within half a decibel. A damping factor greater than 200 at 100 Hz into 4 ohms keeps woofer cones under control, which you hear as tighter, more articulate bass instead of loose overhang.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;103 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eS\/N Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026lt;0.01%\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eTHD\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;200\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eDamping Factor\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;91 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eChannel Separation\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eVariable Bass Boost with Wired Remote Included\u003c\/h3\u003e\n  \u003cp\u003eThe Andrea includes a variable bass boost adjustable from 0 to +12 dB centered at 45 Hz, controlled by an included wired remote. Bridged on a subwoofer, that puts output level at your fingertips from the front seat. Running stereo on midbass drivers, a few dB of boost can restore low-end weight that door mounting locations tend to give away.\u003c\/p\u003e\n\n  \u003ch3\u003eButterworth Crossovers for Clean Frequency Division\u003c\/h3\u003e\n  \u003cp\u003eOnboard Butterworth filters handle crossover duty without external processing. The high-pass sweeps from 80 Hz to 1.2 kHz at 12 dB per octave, covering everything from midbass protection to midrange duty in an active setup. The low-pass sweeps from 10 Hz to 250 Hz at 24 dB per octave, steep enough to keep midrange content out of a subwoofer. Running a DSP instead? Set the filters wide open and let the processor do the work.\u003c\/p\u003e\n\n  \u003ch3\u003eThree Ways to Run the Andrea\u003c\/h3\u003e\n  \u003ch4\u003eStereo Front Stage\u003c\/h4\u003e\n  \u003cp\u003e150 watts per channel into 4 ohms is serious power for a quality component set. The Class AB output stage keeps vocals and acoustic instruments natural at volume.\u003c\/p\u003e\n  \u003ch4\u003eDedicated Midbass in an Active System\u003c\/h4\u003e\n  \u003cp\u003eWith a high damping factor and clean power into 2 or 4 ohms, the Andrea excels driving a pair of midbass woofers in a DSP-controlled active front stage. This is exactly where we pair it with a Goldhorn DSP for crossover, time alignment, and EQ.\u003c\/p\u003e\n  \u003ch4\u003eBridged Mono Subwoofer\u003c\/h4\u003e\n  \u003cp\u003eBridged into 4 ohms, the Andrea delivers 500 watts RMS with the bass boost remote within reach. A strong match for a single sealed 10 or 12 inch subwoofer build.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eSizing note:\u003c\/strong\u003e the Andrea measures 16.4 x 8.9 x 2.2 inches. It is a full-size analog chassis, so plan your amp rack or mounting board accordingly. Internal fusing is 2 x 35A.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to Survive the Install\u003c\/h3\u003e\n  \u003cp\u003eAngled terminals make for clean, show-quality wiring. Docking Pads reduce vibration transfer to extend amplifier life. Protection circuitry covers DC, short circuit, thermal, and overload conditions, with diagnostic LEDs that tell you what is happening at a glance. Every Andrea sold by Audio Intensity is brand new from US Acoustics with a 2-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-cta\"\u003e\n    \u003ch3\u003eAuthorized US Acoustics Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the US Acoustics Andrea fast from Tullahoma, Tennessee, with real installer support before and after the sale. Questions about pairing it with your speakers, subwoofer, or DSP? Reach out. We tune systems with these amplifiers, we do not just box them up.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42858725834841,"sku":null,"price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-andrea-2-channel-class-ab-amplifier-2-x-150wamplifierus-acoustics-2018854.jpg?v=1763824429"},{"product_id":"us-acoustics-wendy-2-channel-class-ab-amplifier-2-x-75w","title":"US Acoustics Wendy | 2 Channel Class AB Amplifier | 2 x 75w","description":"\u003cstyle\u003e\n  .usa-wrap { max-width: 100%; font-family: inherit; color: #e4e4e7 !important; }\n  .usa-hero { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 36px 28px; border-radius: 12px; margin-bottom: 28px; border-bottom: 4px solid #b91c1c !important; }\n  .usa-eyebrow { color: #ef4444 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0; }\n  .usa-hero h2 { color: #ffffff !important; font-size: 28px; margin: 0 0 8px 0; line-height: 1.2; }\n  .usa-hero p { color: #f4f4f5 !important; font-size: 16px; margin: 0 0 18px 0; }\n  .usa-badges { display: flex; flex-wrap: wrap; gap: 8px; }\n  .usa-badge { background: #b91c1c !important; color: #ffffff !important; font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 4px; }\n  .usa-badge-alt { background: #27272a !important; color: #ffffff !important; border: 1px solid #b91c1c !important; }\n  .usa-wrap h3 { color: #ffffff !important; font-size: 22px; margin: 28px 0 12px 0; border-left: 4px solid #b91c1c !important; padding-left: 12px; }\n  .usa-wrap h4 { color: #ef4444 !important; font-size: 17px; margin: 20px 0 8px 0; }\n  .usa-wrap p { color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0; }\n  .usa-callout { background: #27272a !important; border: 1px solid #ef4444 !important; border-radius: 8px; padding: 18px 20px; margin: 22px 0; }\n  .usa-callout p { color: #f4f4f5 !important; margin: 0; }\n  .usa-statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0; }\n  .usa-stat { background: #18181b !important; border: 1px solid #3f3f46 !important; border-radius: 8px; padding: 16px; text-align: center; }\n  .usa-stat .usa-statnum { color: #ffffff !important; font-size: 22px; font-weight: 700; display: block; }\n  .usa-stat .usa-statlabel { color: #ef4444 !important; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; display: block; margin-top: 4px; }\n  .usa-cta { background: #18181b !important; border: 1px solid #3f3f46 !important; color: #ffffff !important; padding: 28px; border-radius: 12px; margin-top: 30px; text-align: center; border-top: 4px solid #b91c1c !important; }\n  .usa-cta h3 { color: #ffffff !important; border-left: none !important; padding-left: 0; margin-top: 0; }\n  .usa-cta p { color: #f4f4f5 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"usa-wrap\"\u003e\n\n  \u003cdiv class=\"usa-hero\"\u003e\n    \u003cp class=\"usa-eyebrow\"\u003eUS Acoustics Analog 2-Channel Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Wendy 2-Channel Class AB Amplifier\u003c\/h2\u003e\n    \u003cp\u003eSpunky Power. Real Full Complementary Class AB in the smallest chassis US Acoustics makes, 7.5 inches of amplifier that fits where nothing else will.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e75W x 2 @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e125W x 2 @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e250W x 1 Bridged @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge usa-badge-alt\"\u003e2-Year Warranty\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eThe Smallest Amplifier in the Line, Built Like the Biggest\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Wendy delivers 75 watts RMS per channel into 4 ohms and 125 watts RMS per channel into 2 ohms, with 250 watts RMS available bridged into a 4-ohm mono load, all rated honestly at 14.4 volts. It uses the same Full Complementary Class AB topology as the rest of the US Acoustics analog family, with total harmonic distortion below 0.01 percent and frequency response from 10 Hz to 30 kHz within half a decibel.\u003c\/p\u003e\n  \u003cp\u003eWhat makes the Wendy different is the package: 7.5 inches long, 8.9 wide, 2.2 tall. That is the smallest footprint in the entire US Acoustics catalog, small enough for under-seat mounting, console cubbies, and behind-panel spaces where a full-size amplifier was never an option. There is no Class AB penalty hiding in the size, either, the same Butterworth filters, Docking Pads, and protection suite carry over from the big amps.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e7.5 in\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eChassis Length\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026lt;0.01%\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eTHD\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;95 dB\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eS\/N Ratio\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;100\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eDamping Factor\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eButterworth Crossovers Onboard\u003c\/h3\u003e\n  \u003cp\u003eThe Wendy carries the same serious filter set as its bigger siblings. The 12 dB per octave Butterworth high-pass sweeps from 80 Hz to 1.2 kHz for component and coaxial duty, and the 24 dB per octave low-pass sweeps from 10 to 250 Hz for bridged subwoofer use. There is no bass boost, remote, subsonic filter, or phase control on this model, the Wendy keeps it simple.\u003c\/p\u003e\n\n  \u003ch3\u003eThree Ways to Run the Wendy\u003c\/h3\u003e\n  \u003ch4\u003eCompact Component Front Stage\u003c\/h4\u003e\n  \u003cp\u003e75 clean Class AB watts per channel is a meaningful upgrade over any head unit and a proper match for quality components in a daily driver, especially when install space is the limiting factor.\u003c\/p\u003e\n  \u003ch4\u003eBridged Compact Subwoofer\u003c\/h4\u003e\n  \u003cp\u003eBridged to 250 watts RMS into 4 ohms with the low-pass engaged, the Wendy makes a tidy power source for a small sealed subwoofer build where the amplifier needs to disappear into the install.\u003c\/p\u003e\n  \u003ch4\u003eThe Add-On Channel Pair\u003c\/h4\u003e\n  \u003cp\u003eIn a larger system, the Wendy is the easy answer when you need two more quality channels, rear fill, a center build, or dedicated duty, without re-engineering the amp rack to fit another full-size chassis.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eInstall notes:\u003c\/strong\u003e onboard fusing is a single 30A fuse. Class AB runs warmer than Class D, so even at this size give the Wendy airflow rather than sealing it into a tight cavity. Angled terminals keep the wiring clean in confined mounting spots.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to the US Acoustics Standard\u003c\/h3\u003e\n  \u003cp\u003eDocking Pads reduce vibration transfer to extend amplifier life, protection circuitry covers DC, short circuit, thermal, and overload conditions, and diagnostic LEDs make troubleshooting fast. Every Wendy sold by Audio Intensity is brand new from US Acoustics with a 2-year warranty through authorized dealers.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-cta\"\u003e\n    \u003ch3\u003eAuthorized US Acoustics Dealer\u003c\/h3\u003e\n    \u003cp\u003eAudio Intensity ships the US Acoustics Wendy fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tight on space and not sure what fits? Send us your measurements and we will tell you straight whether the Wendy is the right amp for the spot.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42858740777049,"sku":"wendy","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-wendy-2-channel-class-ab-amplifier-2-x-75wamplifierus-acoustics-5148876.jpg?v=1764434211"},{"product_id":"audio-wave-aspire-pro-6-channel-amplifier","title":"Audio Wave Aspire Pro 6 Channel Amplifier | Previous Demo","description":"\u003cstyle\u003e\n  .aspire-container {\n    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n    max-width: 1200px;\n    margin: 0 auto;\n    background: linear-gradient(135deg, #0a0f14 0%, #1a2530 100%);\n    color: #e8f4f8;\n    line-height: 1.6;\n  }\n  \n  .aspire-hero {\n    background: linear-gradient(135deg, #0f1419 0%, #1a2530 50%, #00a896 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.aspire-price-sale {\n      font-size: 2.5em;\n    }\n    \n    .aspire-section {\n      padding: 30px 20px;\n    }\n    \n    .aspire-spec-table {\n      font-size: 0.85em;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"aspire-container\"\u003e\n\u003c!-- Hero Section --\u003e\n\u003cdiv class=\"aspire-hero\"\u003e\n\u003ch1\u003eAudio Wave Aspire Pro TST UK\u003c\/h1\u003e\n\u003cdiv class=\"aspire-tagline\"\u003eThe Holy Grail of 6-Channel Amplification\u003c\/div\u003e\n\u003cdiv class=\"aspire-price-box\"\u003e\n\u003cdiv class=\"aspire-price-original\"\u003eRegular: $29,999.99\u003c\/div\u003e\n\u003cdiv class=\"aspire-price-sale\"\u003e$21,999.99\u003c\/div\u003e\n\u003cdiv class=\"aspire-savings\"\u003eSave $8,000.00 | Previous Demo Unit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-condition\"\u003ePrevious Demo | Full Warranty Included\u003c\/div\u003e\n\u003cdiv class=\"aspire-sku\"\u003eSKU: Aspire Pro TST UK | Hand-Crafted in the United Kingdom\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cspan class=\"aspire-badge\"\u003eTriple Stereo Topology\u003c\/span\u003e \u003cspan class=\"aspire-badge\"\u003e6 x 240W RMS @ 4Ω\u003c\/span\u003e \u003cspan class=\"aspire-badge\"\u003ePure Class A\/B\u003c\/span\u003e \u003cspan class=\"aspire-badge\"\u003e0.01% THD @ 100W\u003c\/span\u003e \u003cspan class=\"aspire-badge\"\u003e81 lbs Flagship\u003c\/span\u003e \u003cspan class=\"aspire-badge\"\u003eUK Hand-Crafted\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Demo Unit Information --\u003e\n\u003cdiv class=\"aspire-section\"\u003e\n\u003cdiv class=\"aspire-demo-info\"\u003e\n\u003ch3\u003e📦 About \"Previous Demo\" Condition\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8; margin-bottom: 20px;\"\u003eThis Audio Wave Aspire Pro TST UK is a \u003cstrong\u003eprevious demonstration unit\u003c\/strong\u003e that was used for display, testing, or customer demonstrations. Here's what that means for your purchase:\u003c\/p\u003e\n\u003cul style=\"font-size: 1.05em;\" class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Excellent physical and functional condition. May show minor cosmetic wear from handling\/display but no performance degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTesting:\u003c\/strong\u003e Thoroughly tested and verified to meet all factory specifications by Audio Intensity technicians.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Includes full manufacturer warranty—same coverage as a brand-new unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue:\u003c\/strong\u003e Save \u003cstrong\u003e$8,000\u003c\/strong\u003e compared to new retail while getting the same sonic performance and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories:\u003c\/strong\u003e Includes all original accessories, documentation, and packaging (condition may vary).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial Number:\u003c\/strong\u003e Registered and authenticated by authorized dealer Audio Intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 1.1em; margin-top: 20px; font-weight: 600; color: #ffffff;\"\u003eFor a $22,000 amplifier, demo unit condition represents exceptional value—identical performance at a significantly reduced price.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Introduction Section --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a0f14 0%, #1a2530 100%);\" class=\"aspire-section\"\u003e\n\u003ch2\u003eThe Amplifier You Build the Entire Car Around\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eThe \u003cstrong\u003eAudio Wave Aspire Pro TST UK\u003c\/strong\u003e is not simply an amplifier—it is three independent, high-fidelity stereo amplifiers housed within a single, functional art piece. Designed and hand-crafted by \u003cstrong\u003eGrant Hanan\u003c\/strong\u003e in the United Kingdom, this \"Triple Stereo\" (TST) configuration represents the absolute pinnacle of active front-stage amplification.\u003c\/p\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8; margin-top: 20px;\"\u003eAt \u003cstrong\u003e81 pounds\u003c\/strong\u003e and spanning over \u003cstrong\u003e41 inches in width\u003c\/strong\u003e, the Aspire Pro TST is physically massive. You need to plan your trunk layout early, but the payoff is worth every millimeter of space. By isolating power supplies and audio paths for each pair of channels, the TST eliminates crosstalk and dynamic compression, ensuring that your tweeters, mid-ranges, and mid-bass drivers receive pure, unadulterated power.\u003c\/p\u003e\n\u003cdiv class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003eWhy \"Triple Stereo\" Matters\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.8;\"\u003eUnlike standard multi-channel amplifiers that share resources (power supply, ground plane, audio circuitry), the Aspire Pro TST is engineered as \u003cstrong\u003ethree discrete 2-channel amplifiers\u003c\/strong\u003e on a unified chassis. This architecture allows for massive separation and control:\u003c\/p\u003e\n\u003cul class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels 1-2:\u003c\/strong\u003e Tweeters (isolated stereo pair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels 3-4:\u003c\/strong\u003e Midrange drivers (isolated stereo pair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels 5-6:\u003c\/strong\u003e Mid-bass drivers (isolated stereo pair)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 1.1em; margin-top: 15px;\"\u003eWith this topology, your 3-way active front stage shares the \u003cstrong\u003eexact same gain structure and sonic signature\u003c\/strong\u003e across all drivers. It's seamless tonal consistency from 20Hz to 20kHz.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Technical Specifications Section --\u003e\n\u003cdiv class=\"aspire-section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"aspire-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTopology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTriple Stereo (6-Channel) Pure Class A\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRMS Power @ 4Ω (0.01% THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 x 100 Watts (Conservative Rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRMS Power @ 4Ω (0.1% THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 x 240 Watts (Full Headroom)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRMS Power @ 8Ω (0.01% THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 x 100 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRMS Power @ 8Ω (0.1% THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 x 160 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBridged Power @ 8Ω (0.1% THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 x 500 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBridged Power @ 6Ω (0.1% THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 x 540 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12Hz – 100kHz (-1dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal-to-Noise Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; -105dB (A-Weighted, Full Power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33k Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3V – 8V (Wide Range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIdle Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 3.0 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Cutout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80°C (176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInternal Fuse Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 x 30 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Protection Cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 9.00 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64mm x 1050mm x 339mm (2.5\" x 41.3\" x 13.3\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81 lbs (36.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8V – 16V (Standard 12V Systems)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChassis Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack or White (This Unit: Black)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack, White, Gold, UK Flag, US Flag (This Unit: UK Flag PCB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHand-Crafted in the United Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDesigner\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrant Hanan (Audio Wave Ltd Director)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Sonic Character Section --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a0f14 0%, #1a2530 100%);\" class=\"aspire-section\"\u003e\n\u003ch2\u003eSonic Character \u0026amp; Performance Philosophy\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eIn a world of clinical digital amplification, the Aspire Pro TST stands apart with a sonic signature that is \u003cstrong\u003eorganic, rich, and intensely detailed\u003c\/strong\u003e. This is the \"velvet hammer\" effect: delicate enough to reveal the breath in a vocalist's microphone, yet powerful enough to strike with visceral impact when the track demands it.\u003c\/p\u003e\n\u003cdiv class=\"aspire-feature-grid\"\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🎯 Ultra-Low Distortion\u003c\/h4\u003e\n\u003cp\u003eAt 100W RMS per channel, the Aspire Pro TST achieves \u003cstrong\u003e\u0026lt;0.01% THD\u003c\/strong\u003e—essentially unmeasurable distortion. Even when pushed to 240W per channel, THD remains below 0.1%. This allows the amplifier to reproduce micro-details that cheaper amplifiers smear into noise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🌡️ Thermal Bias Stability\u003c\/h4\u003e\n\u003cp\u003eThe extended chassis serves as a massive thermal sink, maintaining Class A\/B bias stability during extended listening sessions. The sound remains consistent from the first note to the last—no thermal compression or tonal shift as the amplifier warms up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🔊 Dynamic Effortlessness\u003c\/h4\u003e\n\u003cp\u003eWith 240W available per channel, the Aspire Pro TST never sounds strained or compressed, even during orchestral crescendos or dense electronic production. Transients hit with authority, sustain decays naturally, and silence is truly silent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🎼 Tonal Consistency\u003c\/h4\u003e\n\u003cp\u003eBecause each stereo pair shares identical circuitry, gain structure, and power supply topology, your tweeters, midrange, and mid-bass drivers exhibit perfect tonal consistency. No frequency range sounds \"different\" from another—just seamless integration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\" class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003eClass A\/B vs. Class D: Why It Matters\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.8;\"\u003eThe Aspire Pro TST uses pure Class A\/B topology, not the Class D switching designs common in modern amplifiers. Here's why Grant Hanan chose this approach:\u003c\/p\u003e\n\u003cul class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinearity:\u003c\/strong\u003e Class A\/B operates in the analog domain with no high-frequency switching artifacts. The output is a continuous, linear representation of the input signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarmonic Structure:\u003c\/strong\u003e Class A\/B distortion (when present) consists of even-order harmonics that the human ear perceives as \"warmth\" rather than harshness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransient Response:\u003c\/strong\u003e No switching delay or output filter phase shift—transients reproduce with immediacy and accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise Floor:\u003c\/strong\u003e No PWM switching noise to contaminate the audio band. The \u0026gt;-105dB S\/N ratio is pure, not filtered.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 1.1em; margin-top: 15px; font-weight: 600;\"\u003eThe trade-off? Class A\/B is less efficient (more heat, more weight, more power draw). But for a flagship SQ amplifier where sonic purity is paramount, it's the only choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 3-Way Active Front Stage Section --\u003e\n\u003cdiv class=\"aspire-section\"\u003e\n\u003ch2\u003ePerfect for 3-Way Active Front Stages\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eThe Aspire Pro TST solves the biggest headache in 3-way active setups: \u003cstrong\u003egetting tonal consistency across all drivers\u003c\/strong\u003e. When you use three separate amplifiers (or a multi-channel amp with shared resources), each frequency range can exhibit slightly different gain structures, noise floors, and sonic signatures. The result? Your system sounds disjointed—tweeters sound \"digital,\" midrange sounds \"warm,\" and mid-bass sounds \"powerful\" but disconnected.\u003c\/p\u003e\n\u003cdiv class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003eChannel Assignment for 3-Way Active\u003c\/h3\u003e\n\u003ctable class=\"aspire-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChannel Pair\u003c\/th\u003e\n\u003cth\u003eDriver Assignment\u003c\/th\u003e\n\u003cth\u003eTypical Crossover Points\u003c\/th\u003e\n\u003cth\u003ePower Requirement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels 1-2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTweeters (Left\/Right)\u003c\/td\u003e\n\u003ctd\u003e3.5kHz HPF – 20kHz\u003c\/td\u003e\n\u003ctd\u003e50-100W RMS @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels 3-4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMidrange (Left\/Right)\u003c\/td\u003e\n\u003ctd\u003e250Hz HPF – 3.5kHz LPF\u003c\/td\u003e\n\u003ctd\u003e80-150W RMS @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels 5-6\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMid-bass (Left\/Right)\u003c\/td\u003e\n\u003ctd\u003e60Hz HPF – 250Hz LPF\u003c\/td\u003e\n\u003ctd\u003e150-240W RMS @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.8; margin-top: 25px;\"\u003eWith the TST topology, your sub-stage, mid-bass, and highs all share the \u003cstrong\u003eexact same gain structure and sonic signature\u003c\/strong\u003e. The crossover between drivers is determined purely by your DSP's electronic crossover settings, not by amplifier characteristics. The result? Seamless integration and a cohesive soundstage that rivals the best home audio systems.\u003c\/p\u003e\n\u003cdiv class=\"aspire-warning\"\u003e\n\u003ch3 style=\"color: #ffffff; margin-top: 0;\"\u003e⚠️ Critical Installation Requirement\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.8;\"\u003eBecause the Aspire Pro TST is essentially three separate amplifiers in one chassis, wiring is \u003cstrong\u003ecritical\u003c\/strong\u003e. Ensure your power distribution can handle the current demands of a true Class A\/B flagship:\u003c\/p\u003e\n\u003cul style=\"color: #ffffff;\" class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Wire Gauge:\u003c\/strong\u003e 0 AWG or 1\/0 AWG power and ground (trunk to battery)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFusing:\u003c\/strong\u003e 200A total (6 x 30A internal + external 200A ANL fuse at battery)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator Capacity:\u003c\/strong\u003e Minimum 250A high-output alternator (300A+ recommended for competition use)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e AGM or lithium auxiliary battery recommended for voltage stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround:\u003c\/strong\u003e Multiple ground points to bare metal chassis; star washer connections mandatory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 1.1em; margin-top: 15px; font-weight: bold;\"\u003eDo not underestimate the electrical demands. A weak electrical system will bottleneck this amplifier's performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Brand Heritage Section --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a0f14 0%, #1a2530 100%);\" class=\"aspire-section\"\u003e\n\u003ch2\u003eAudio Wave Ltd: British Engineering Excellence\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003e\u003cstrong\u003eGrant Hanan\u003c\/strong\u003e, founder and director of Audio Wave Ltd, represents a rare breed in modern car audio: a designer who prioritizes sonic purity over marketing hype. Based in the United Kingdom, Audio Wave has built a reputation in the global SQ competition community for amplifiers that deliver transparency, organic tonality, and effortless dynamics.\u003c\/p\u003e\n\u003cdiv class=\"aspire-feature-grid\"\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🇬🇧 Hand-Crafted in the UK\u003c\/h4\u003e\n\u003cp\u003eEvery Aspire Pro TST is hand-assembled by Grant Hanan and his team in the UK. From component selection to final testing, human expertise guides every step of the process. This isn't mass production—it's artisanal amplifier craftsmanship.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🔧 Finest British Components\u003c\/h4\u003e\n\u003cp\u003eAudio Wave sources premium components from British suppliers wherever possible, supplemented by the finest Japanese (Nichicon, Rubycon) and European (Vishay, Wima) parts. No generic commodity components—only parts that meet Grant's exacting standards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🏆 SQ Competition Heritage\u003c\/h4\u003e\n\u003cp\u003eAudio Wave amplifiers have powered numerous championship-winning SQ competition vehicles worldwide. The Aspire Pro TST, in particular, is a favorite among IASCA and EMMA competitors who demand the highest fidelity and judging scores.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e📐 Circuit Design Philosophy\u003c\/h4\u003e\n\u003cp\u003eGrant Hanan's design philosophy prioritizes \u003cstrong\u003etransparency\u003c\/strong\u003e above all else. The amplifier should reveal what's in the recording—not add its own coloration or signature. This \"straight wire with gain\" approach requires meticulous circuit design and component matching.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\" class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003eWhy Hand-Crafted Matters\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.8;\"\u003eMass-produced amplifiers rely on automated assembly, statistical quality control, and cost-optimized components. Hand-crafted amplifiers like the Aspire Pro TST benefit from:\u003c\/p\u003e\n\u003cul class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Matching:\u003c\/strong\u003e Critical gain stage transistors and resistors are hand-selected for matched pairs to minimize channel-to-channel variance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolder Quality:\u003c\/strong\u003e Hand-soldering allows for proper wetting, inspection, and rework—no cold solder joints or bridged connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Testing:\u003c\/strong\u003e Every amplifier undergoes full power testing, distortion measurement, and listening evaluation before shipment. Units that don't meet standards are reworked or rejected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccountability:\u003c\/strong\u003e When you buy an Aspire Pro TST, you're buying Grant Hanan's reputation. His name is on every unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Physical Considerations Section --\u003e\n\u003cdiv class=\"aspire-section\"\u003e\n\u003ch2\u003ePhysical Size \u0026amp; Installation Planning\u003c\/h2\u003e\n\u003cdiv class=\"aspire-warning\"\u003e\n\u003ch3 style=\"color: #ffffff; margin-top: 0;\"\u003e📏 This is a MASSIVE Amplifier\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.1em; line-height: 1.8;\"\u003eAt \u003cstrong\u003e81 pounds\u003c\/strong\u003e and \u003cstrong\u003e41.3 inches wide\u003c\/strong\u003e, the Aspire Pro TST is physically larger than most subwoofer amplifiers. You must plan your installation carefully:\u003c\/p\u003e\n\u003cul style=\"color: #ffffff;\" class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Surface:\u003c\/strong\u003e Requires 42+ inches of continuous trunk floor or wall space. Many sedans will require custom mounting boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Minimum 3-4 inches of clearance above heat sink fins. Class A\/B generates significant heat—adequate airflow is non-negotiable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Distribution:\u003c\/strong\u003e 81 lbs concentrated in one location affects vehicle weight balance. Consider symmetrical placement or counterbalancing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessibility:\u003c\/strong\u003e You'll need to access the amplifier for gain adjustment and troubleshooting. Don't bury it under subwoofer enclosures or luggage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifting\/Handling:\u003c\/strong\u003e Two-person installation recommended. The amplifier's length and weight make solo installation awkward and risky.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\" class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003eRecommended Installation Locations\u003c\/h3\u003e\n\u003cdiv class=\"aspire-feature-grid\"\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e✅ Sedan Trunk Wall\u003c\/h4\u003e\n\u003cp\u003eMount vertically on trunk rear wall using custom acrylic or aluminum mounting board. Provides excellent visibility and ventilation. May require relocation of factory subwoofer or spare tire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e✅ SUV\/Hatch Rear Floor\u003c\/h4\u003e\n\u003cp\u003eMount horizontally on reinforced rear floor (behind third row or cargo area). Ensure ventilation clearance and secure mounting to prevent shifting during driving.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e⚠️ Under-Seat (Not Recommended)\u003c\/h4\u003e\n\u003cp\u003eThe 41.3\" width exceeds most vehicle widths between rear seat mounting points. Under-seat mounting is impractical for the Aspire Pro TST.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e✅ Custom Amplifier Rack\u003c\/h4\u003e\n\u003cp\u003eBuild dedicated amplifier display rack with LED lighting, cooling fans, and show-quality finish. Popular choice for competition vehicles where aesthetics matter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Target Market Section --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a0f14 0%, #1a2530 100%);\" class=\"aspire-section\"\u003e\n\u003ch2\u003eWho Should Buy the Aspire Pro TST?\u003c\/h2\u003e\n\u003cdiv class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003e✅ Ideal For:\u003c\/h3\u003e\n\u003cul style=\"font-size: 1.05em;\" class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSQ Competition Builders:\u003c\/strong\u003e IASCA, EMMA, MECA competitors who need the highest judging scores for amplifier quality and sonic transparency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Way Active Enthusiasts:\u003c\/strong\u003e Audiophiles running active front stages (tweeter\/midrange\/mid-bass) who demand tonal consistency across all drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltimate Build Projects:\u003c\/strong\u003e High-budget builds ($30k-$100k+ total system cost) where the amplifier is the foundation of the entire system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A\/B Purists:\u003c\/strong\u003e Listeners who prefer the organic, analog character of Class A\/B over the clinical precision of Class D.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUK\/European Enthusiasts:\u003c\/strong\u003e Customers who value British engineering heritage and want to support hand-crafted, artisanal audio products.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\" class=\"aspire-warning\"\u003e\n\u003ch3 style=\"color: #ffffff; margin-top: 0;\"\u003e❌ Not Recommended For:\u003c\/h3\u003e\n\u003cul style=\"color: #ffffff; font-size: 1.05em;\" class=\"aspire-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBudget-Conscious Builds:\u003c\/strong\u003e At $22k, the Aspire Pro TST represents 30-50% of most enthusiast system budgets. Only viable for high-end projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Vehicle Installs:\u003c\/strong\u003e The 41.3\" width and 81 lb weight make installation impractical in compact cars, motorcycles, or boats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily Driver Simplicity:\u003c\/strong\u003e If you want \"install and forget,\" a DSP amplifier with built-in processing is more practical than a pure amplifier + separate DSP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBass-Only Systems:\u003c\/strong\u003e The TST's strength is front-stage purity. If you're running only subwoofers, a dedicated monoblock is more cost-effective.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency-First Builds:\u003c\/strong\u003e Class A\/B draws significant current even at idle (±3A). If electrical efficiency is paramount, choose Class D.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- System Pairing Recommendations --\u003e\n\u003cdiv class=\"aspire-section\"\u003e\n\u003ch2\u003eSystem Pairing Recommendations\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eThe Aspire Pro TST is a \u003cstrong\u003epure amplifier\u003c\/strong\u003e—it has no built-in DSP, crossovers, or time alignment. You \u003cstrong\u003emust\u003c\/strong\u003e pair it with a high-quality DSP to unlock its full potential. Here's what Audio Intensity recommends:\u003c\/p\u003e\n\u003cdiv class=\"aspire-feature-grid\"\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🎛️ DSP Processor\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eGoldhorn P5 DSP Ultra\u003c\/strong\u003e (featured on Audio Intensity page)\u003cbr\u003eDual ES9038Pro DACs, 192kHz sampling, 16-channel processing. High-voltage pre-outs (8V RMS) properly drive the Aspire Pro TST's 0.3V-8V input sensitivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🔊 3-Way Speaker System\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eCrescendo Revolution 7S3\u003c\/strong\u003e (featured on Audio Intensity page)\u003cbr\u003eAI-enhanced active 3-way set with 7\" mid-bass, 3.5\" midrange, 1\" tweeter. Designed to handle the Aspire Pro TST's dynamic capability and power output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e🔌 RCA Interconnects\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eHarmonic Harmony Concerto RCA\u003c\/strong\u003e (featured on Audio Intensity page)\u003cbr\u003eYou're running 6 channels of analog signal from DSP to amplifier. Standard RCAs will introduce a noise floor this amplifier will reveal. Use shielded, high-fidelity interconnects with 100% coverage and twisted-pair geometry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-feature-card\"\u003e\n\u003ch4\u003e⚡ Power Wire \u0026amp; Distribution\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e0 AWG or 1\/0 AWG OFC Power Cable\u003c\/strong\u003e\u003cbr\u003eDo NOT use CCA (copper-clad aluminum) wire. The Aspire Pro TST deserves oxygen-free copper (OFC) or ultra-pure OFC for minimal resistance and voltage drop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aspire-cta-box\"\u003e\n\u003ch3\u003eComplete System Investment\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eTo properly utilize the Aspire Pro TST, expect a \u003cstrong\u003etotal system investment of $35,000-$60,000+\u003c\/strong\u003e including:\u003c\/p\u003e\n\u003cul style=\"text-align: left; max-width: 700px; margin: 20px auto;\" class=\"aspire-list\"\u003e\n\u003cli\u003eAspire Pro TST UK Amplifier: $21,999\u003c\/li\u003e\n\u003cli\u003eGoldhorn P5 DSP Ultra: $7,999\u003c\/li\u003e\n\u003cli\u003eCrescendo Revolution 7S3 Speakers: $3,500-$5,000\u003c\/li\u003e\n\u003cli\u003ePremium Subwoofer System: $3,000-$8,000\u003c\/li\u003e\n\u003cli\u003eElectrical Upgrades (alternator, battery, wiring): $2,000-$4,000\u003c\/li\u003e\n\u003cli\u003eProfessional Installation \u0026amp; Tuning: $5,000-$10,000\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 1.2em; margin-top: 20px; font-weight: bold; color: #ffffff;\"\u003eThis is an investment in sonic purity at the highest level achievable in a vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Final Recommendation Section --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a0f14 0%, #1a2530 100%);\" class=\"aspire-section\"\u003e\n\u003ch2\u003eFinal Recommendation\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.2em; line-height: 1.9;\"\u003eThe \u003cstrong\u003eAudio Wave Aspire Pro TST UK\u003c\/strong\u003e is not for everyone. At $21,999.99 (even as a demo unit), it represents a significant financial commitment that only makes sense for serious audiophiles and SQ competitors who demand the absolute best.\u003c\/p\u003e\n\u003cdiv class=\"aspire-cta-box\"\u003e\n\u003ch3\u003eShould You Buy This Amplifier?\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eIf you're building a flagship SQ competition vehicle, running a 3-way active front stage, and have the budget to support a $35k-$60k+ total system investment, the Aspire Pro TST is one of the finest 6-channel amplifiers money can buy.\u003c\/p\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8; margin-top: 20px;\"\u003eThe Triple Stereo topology, hand-crafted British engineering, pure Class A\/B design, and Grant Hanan's reputation all contribute to an amplifier that will be the sonic foundation of your system for decades.\u003c\/p\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8; margin-top: 20px;\"\u003eAt $8,000 off retail (demo unit pricing), this represents exceptional value—identical performance at a significantly reduced price.\u003c\/p\u003e\n\u003cdiv style=\"margin-top: 30px; padding-top: 25px; border-top: 2px solid rgba(255,255,255,0.3);\"\u003e\n\u003cp style=\"font-size: 1.5em; font-weight: 800; color: #ffffff; margin-bottom: 10px;\"\u003eOverall Rating: ★★★★★ 5\/5\u003c\/p\u003e\n\u003cp style=\"font-size: 1.4em; font-weight: 800; color: #00d4aa; margin-bottom: 10px;\"\u003ePerformance Rating: ★★★★★ 5\/5\u003c\/p\u003e\n\u003cp style=\"font-size: 1.4em; font-weight: 800; color: #00d4aa; margin-bottom: 10px;\"\u003eValue Rating (Demo): ★★★★☆ 4\/5\u003c\/p\u003e\n\u003cp style=\"font-size: 1.6em; font-weight: 900; color: #00d4aa; margin-top: 20px;\"\u003eRecommendation: FLAGSHIP BUY for SQ Competitors\u003c\/p\u003e\n\u003cp style=\"font-size: 1.1em; color: #e8f4f8; margin-top: 10px;\"\u003eThe pinnacle of 6-channel amplification\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\" class=\"aspire-highlight-box\"\u003e\n\u003ch3 style=\"color: #00d4aa; margin-top: 0;\"\u003eBottom Line\u003c\/h3\u003e\n\u003cp style=\"font-size: 1.15em; line-height: 1.8;\"\u003eThis is the amplifier you build the entire car around. The Aspire Pro TST UK isn't just a component—it's a statement of intent. You're choosing transparency, sonic purity, and British craftsmanship over mass-market convenience.\u003c\/p\u003e\n\u003cp style=\"font-size: 1.2em; font-weight: bold; color: #00d4aa; margin-top: 20px; text-align: center;\"\u003eIf you have to ask whether you need it, you probably don't. But if you know you need it, there's nothing else like it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Footer --\u003e\n\u003c\/div\u003e","brand":"Audio Wave","offers":[{"title":"Default Title","offer_id":42879703416921,"sku":"Aspire Pro TST UK","price":21999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/17fd82_8d42a4f20ef84169b428621757a57e51_mv2.avif?v=1765855152"},{"product_id":"tru-technologies-tungsten-grande-class-ab-2-channel-amplifier","title":"Tru Technologies Tungsten Grande Class AB 2 Channel Amplifier","description":"\u003ch2\u003eAmerican-Made Muscle for the Discerning Audiophile\u003c\/h2\u003e\n\u003cp\u003eThe Tru Technology Tungsten Grande TG2 is a high-output, 2-channel Class AB powerhouse designed for those who demand authority from their front stage. Hand-assembled in La Crescenta, California, the TG2 Grande is the \"big brother\" to the standard Tungsten series, engineered to provide massive headroom and the legendary \"slam\" that Tru Technology is famous for. Delivering a stout 275W per channel at 4 ohms, this amplifier is built to drive the most demanding high-end component sets with surgical precision and effortless dynamic range.\u003c\/p\u003e\n\u003ch2\u003eAdvanced Engineering with Zero Thermal Rollback\u003c\/h2\u003e\n\u003cp\u003eWhile most modern amplifiers use cheap die-cast heat sinks and thermal rollback circuits that throttle your power when things get hot, the TG2 Grande is built differently. It features a thermally optimized, multi-piece CNC-machined aluminum heatsink and a high-bias Class AB topology that maintains consistent power delivery regardless of the listening duration. The internal architecture utilizes a calculated blend of high-end SMD and through-hole components on a 4-layer PCB, ensuring a signal path that is both short and exceptionally clean, resulting in a noise floor that is virtually non-existent.\u003c\/p\u003e\n\u003ch2\u003eThe Experience: Absolute Grip and Sonic Transparency\u003c\/h2\u003e\n\u003cp\u003eSonically, the TG2 Grande is defined by its \"Grip.\" With a high damping factor and a robust power supply, it controls mid-bass drivers with a level of tightness that mass-produced amplifiers simply cannot replicate. The high-frequency reproduction is transparent and airy, devoid of the \"clinical\" harshness found in Class D designs. Whether you are powering a competition-level SQ front stage or a high-fidelity daily driver, the TG2 Grande offers the perfect marriage of old-school soul and modern technical excellence. All connections are located on a single side for a clean, professional install that matches the amplifier's premium performance.\u003c\/p\u003e","brand":"Tru Technology","offers":[{"title":"Default Title","offer_id":43034326204505,"sku":"TG-RS2 HV v2.5","price":2399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/tru-technologies-tungsten-grande-class-ab-monoblock-amplifieramplifiertru-technology-2665233.webp?v=1770018906"},{"product_id":"tru-technologies-tungsten-grande-class-ab-monoblock-amplifier","title":"Tru Technologies Tungsten Grande Class AB Monoblock Amplifier","description":"\u003ch2\u003eA Rare Breed: The Full-Range Class AB Monoblock\u003c\/h2\u003e\n\u003cp\u003eThe Tru Technology Tungsten Grande Monoblock is a precision instrument designed for the absolute purist. While the industry has moved toward efficient Class D monoblocks, Tru Technology understands that for the ultimate SQ (Sound Quality) subwoofer or high-output mid-bass application, nothing replaces the tonal depth and \"slam\" of a high-bias Class AB circuit. Built into the same substantial CNC-machined chassis as the TG 2-channel, this monoblock is hand-crafted in La Crescenta, California, specifically for enthusiasts who demand zero compromise in signal integrity and cone control.\u003c\/p\u003e\n\u003ch2\u003eApplication-Specific Engineering: 4-Ohm and 8-Ohm Variants\u003c\/h2\u003e\n\u003cp\u003eIn a departure from \"one size fits all\" amplifiers, the Tungsten Grande Monoblock is offered in two distinct, optimized variants. One is precision-tuned to deliver its full 700W RMS into a 4-ohm load, while the other is specifically engineered for high-impedance 8-ohm drivers. This optimization ensures maximum thermal stability and efficiency for your specific driver selection. Because these units are tuned for a specific impedance, they are not designed to be run below their rated load, ensuring that the amplifier operates within its most linear and musical window at all times.\u003c\/p\u003e\n\u003ch2\u003eThe Experience: Absolute Authority and Control\u003c\/h2\u003e\n\u003cp\u003eThe sonic character of the TG Monoblock is defined by its \"Grip.\" With a massive power supply and high damping factor, it provides a level of low-frequency articulation that makes subwoofers sound more musical and less \"boomy.\" Being a full-range Class AB design, its versatility extends beyond subwoofers; it is an incredible choice for driving high-power mid-bass drivers in a multi-amp active configuration. From the hand-engraved badges to the single-sided connection layout, every inch of this amplifier reflects Audio Intensity's commitment to high-end, American-made audio excellence.\u003c\/p\u003e","brand":"Tru Technology","offers":[{"title":"4 ohm","offer_id":43034358743129,"sku":"TG-RS 1.4","price":1999.99,"currency_code":"USD","in_stock":true},{"title":"8 ohm","offer_id":43034358775897,"sku":"TG-RS 1.8","price":1999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/tru-technologies-tungsten-grande-class-ab-monoblock-amplifieramplifiertru-technology-2665233.webp?v=1770018906"},{"product_id":"audio-wave-cr-401-dual-mono-class-ab-amplifier","title":"Audio Wave CR 401 Dual Mono Class AB Amplifier","description":"\n\u003ch2\u003eThe Pinnacle of Automotive High-Fidelity\u003c\/h2\u003e\n\u003cp\u003eThe Audio Wave CR-401 is not merely an amplifier; it is a masterpiece of electronic engineering, hand-assembled in the UK for those who refuse to compromise. As the flagship of the CR series, the 401 represents the absolute zenith of car audio, designed to outperform even the most prestigious home audio systems. This is a dual-mono powerhouse, meaning each channel is a completely independent amplifier with its own dedicated power supply, ensuring zero crosstalk and a soundstage so wide and deep it defies the confines of a vehicle cabin.\u003c\/p\u003e\n\n\u003ch2\u003eEngineered with Zero Compromise\u003c\/h2\u003e\n\u003cp\u003eThe \"magical\" experience of the CR-401 comes from the deliberate selection of the world's finest components. It utilizes \u003cstrong\u003eTakman OFC 1% non-magnetic resistors\u003c\/strong\u003e and \u003cstrong\u003eNichicon Gold Tune capacitors\u003c\/strong\u003e, parts usually reserved for five-figure boutique home preamps. The 3-ounce double-layered gold-plated PCBs provide a massive, low-resistance path for current, while the \u003cstrong\u003eAlps Blue gain controls\u003c\/strong\u003e ensure that the signal remains pure from the moment it enters the WBT RCA connectors. Every internal part is chosen because it is \"sonically invisible,\" allowing the music to breathe without the clinical harshness found in mass-produced equipment.\u003c\/p\u003e\n\n\u003ch2\u003eThe Sonic Character: Liquid Precision\u003c\/h2\u003e\n\u003cp\u003eThe CR-401 delivers a sonic signature characterized by \"Liquid Precision.\" It provides the warmth and soul of a classic Class AB design but with a noise floor so low (120dB SNR in direct mode) that the micro-dynamics of a recording—the breath of a vocalist, the trailing decay of a cymbal—are rendered with startling realism. With 300 Watts per channel at 4 Ohms of high-current power, it handles complex transients with effortless authority. It doesn't just play music; it recreates the original recording environment with a level of transparency that makes the hardware disappear.\u003c\/p\u003e\n","brand":"Audio Wave","offers":[{"title":"Default Title","offer_id":43086083719257,"sku":"CR 401","price":39999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/audio-wave-cr-401-dual-mono-class-ab-amplifieramplifieraudio-wave-6500281.jpg?v=1771567510"},{"product_id":"audio-wave-aspire-pro-usa-mono","title":"Audiowave Aspire Pro USA Monoblock Class AB Amplifier","description":"\u003cp\u003eBuilding on the foundation of the hand built Aspire Pro fully loaded option package, the amplifier has been elevated with a distinctive and personalized design feature: the USA flag is silk-screened over a gold circuit board. This unique detail not only enhances the amplifier's visual appeal but also adds a sense of individuality and pride for the owner.\u003c\/p\u003e\n\u003cp\u003eThe gold circuit board provides a striking contrast against the silk-screened flag, creating a visually captivating element that sets the amplifier apart from standard models. This thoughtful design choice reflects a blend of patriotic sentiment and high-end craftsmanship, underscoring the amplifier's status as not just a piece of audio equipment but a work of art. The incorporation of the USA flag over the gold board transforms the amplifier into a statement piece, making it a standout addition to any audio setup.\u003c\/p\u003e\n\u003cp\u003eBeyond aesthetics, the gold circuit board serves a functional purpose as well, contributing to the amplifier's superior performance. Gold is known for its excellent conductive properties, which help minimize signal loss and reduce interference, resulting in cleaner, more precise sound reproduction. By combining this high-performance functionality with a visually appealing design, the Aspire Pro JDP G amplifier offers both exceptional audio quality and a unique personal touch.\u003c\/p\u003e\n\u003cp\u003eThis integration of style and substance enhances the overall ownership experience, making the amplifier not only a top-tier audio device but also a symbol of individuality and pride for its user.\u003c\/p\u003e","brand":"Audio Wave","offers":[{"title":"Default Title","offer_id":43194208616537,"sku":"Aspire Pro USA mono","price":8999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/audio-wave-aspire-pro-usaamplifieraudio-wave-238066.webp?v=1761970218"},{"product_id":"audiowave-active-250-full-range-monoblock-amplifier","title":"AudioWave Active 250 Full-Range Monoblock Amplifier","description":"\u003cstyle\u003e\n  @import 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padding: 40px 24px; }\n    .aw-section h2 { font-size: 1.7em; }\n    .aw-stat-row { grid-template-columns: repeat(2, 1fr); }\n    .aw-grid { grid-template-columns: 1fr; }\n    .aw-warranty { flex-direction: column; gap: 20px; padding: 32px 24px; }\n    .aw-warranty-badge { min-width: unset; width: fit-content; }\n    .aw-cta { padding: 48px 24px; }\n    .aw-cta h2 { font-size: 1.8em; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"aw-wrap\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv class=\"aw-hero\"\u003e\n\u003cp class=\"aw-hero-eyebrow\"\u003eAudio Wave — Active Series\u003c\/p\u003e\n\u003ch2 class=\"aw-hero-title\"\u003eActive 250\u003c\/h2\u003e\n\u003cp class=\"aw-hero-subtitle\"\u003eFull-Range Monoblock Amplifier\u003c\/p\u003e\n\u003cp class=\"aw-hero-origin\"\u003eHandcrafted in England  ·  Exclusively Available at Audio Intensity\u003c\/p\u003e\n\u003cdiv class=\"aw-badges\"\u003e\n\u003cspan class=\"aw-badge\"\u003eReference SQ\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003eUp to 450W RMS\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003e8 \/ 4 \/ 2 Ohm Stable\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003eSNR -124dB\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003e9.5Hz – 120kHz\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003e24k Gold Connectors\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003eBridgeable — Two Units\u003c\/span\u003e \u003cspan class=\"aw-badge\"\u003e3-Year Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- INTRO --\u003e\n\u003cdiv class=\"aw-section\"\u003e\n\u003ch2\u003eThe Most Serious Small Amplifier Ever Made.\u003c\/h2\u003e\n\u003cdiv class=\"aw-underline\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eAudio Wave Ltd operates out of England with a singular philosophy: build the finest amplifiers in the world, without exception. The Active 250 is the entry point into that philosophy — a \u003ca href=\"https:\/\/audiointensity.com\/collections\/full-range-wideband\" target=\"_blank\" rel=\"noopener\"\u003efull-range\u003c\/a\u003e monoblock measuring just 360mm x 152mm x 80mm, producing up to 450 watts RMS at 2 ohms, and measuring a signal-to-noise ratio of -124dB. At $2,499, it is priced where it is because nothing about it was designed around a cost target.\u003c\/p\u003e\n\u003cp\u003eGrant Hanan, the designer and owner of Audio Wave, spent two years developing the power supply capacitors in the Active 250 because no commercially available component met his specifications. Every power and speaker connector is CNC-milled on-site and plated with 24-karat gold at the Audio Wave facility. The chassis top is plexiglass — not as a gimmick, but as an invitation to look at the internal construction and understand what you're actually buying.\u003c\/p\u003e\n\u003cp\u003eThis is not an amplifier for someone who wants impressive specifications on paper. It is an amplifier for someone who wants to hear the difference those specifications make.\u003c\/p\u003e\n\u003cdiv class=\"aw-stat-row\"\u003e\n\u003cdiv class=\"aw-stat\"\u003e\n\u003cdiv class=\"aw-stat-value\"\u003e450W\u003c\/div\u003e\n\u003cdiv class=\"aw-stat-label\"\u003eRMS @ 2 Ohm \/ 16V\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-stat\"\u003e\n\u003cdiv class=\"aw-stat-value\"\u003e-124\u003c\/div\u003e\n\u003cdiv class=\"aw-stat-label\"\u003edB SNR A-Weighted\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-stat\"\u003e\n\u003cdiv class=\"aw-stat-value\"\u003e120k\u003c\/div\u003e\n\u003cdiv class=\"aw-stat-label\"\u003eHz Bandwidth\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-stat\"\u003e\n\u003cdiv class=\"aw-stat-value\"\u003e24k\u003c\/div\u003e\n\u003cdiv class=\"aw-stat-label\"\u003eGold Connectors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CONSTRUCTION --\u003e\n\u003cdiv class=\"aw-section\"\u003e\n\u003ch2\u003eBuilt to a Standard, Not a Price.\u003c\/h2\u003e\n\u003cdiv class=\"aw-underline\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery detail of the Active 250 reflects decisions made for sonic performance — not manufacturing convenience. The result is an amplifier that is as remarkable to examine as it is to listen to.\u003c\/p\u003e\n\u003cdiv class=\"aw-grid\"\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003ePlexiglass Window Top\u003c\/h4\u003e\n\u003cp\u003eThe transparent top panel is a statement of confidence. It exists so you can see exactly what you paid for — the precise internal layout, custom component placement, and hand-assembled construction that define every Audio Wave amplifier. Nothing is hidden because nothing needs to be.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003eBespoke Power Supply Capacitors\u003c\/h4\u003e\n\u003cp\u003eAfter two years of development, Grant Hanan found that no off-the-shelf capacitor could meet his tolerances for the Active line. Audio Wave manufactures its own — custom-spec'd and built exclusively for their amplifiers. This single component is central to the power stability and transient response that define the Active 250's sound character.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003e24k Gold-Plated Connections\u003c\/h4\u003e\n\u003cp\u003eEvery power and speaker connector on the Active 250 is CNC-milled in-house at the Audio Wave facility, then plated with 24-karat gold on-site. The result is a mechanically perfect fit with no oxidation risk and optimal conductivity at every connection point — the kind of detail that matters most over years of use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003eFull-Range Monoblock Architecture\u003c\/h4\u003e\n\u003cp\u003eThe Active 250 operates full-range — 9.5Hz to 120kHz — making it equally at home on a high-excursion subwoofer, a set of midrange drivers, or a full-range speaker in a two-channel build. It bridges with a second unit for applications demanding up to 680W RMS at 4 ohms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- PERFORMANCE --\u003e\n\u003cdiv class=\"aw-section\"\u003e\n\u003ch2\u003eThe Measurements Behind the Sound.\u003c\/h2\u003e\n\u003cdiv class=\"aw-underline\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eAudio Wave publishes honest specifications — measured at 0.1% THD, not the inflated figures common to the category. What those numbers represent in practice is an amplifier with remarkable dynamic headroom, vanishingly low noise, and a bandwidth that resolves detail most car audio amplifiers are simply incapable of reproducing.\u003c\/p\u003e\n\u003ch3\u003eSignal-to-Noise Ratio\u003c\/h3\u003e\n\u003cp\u003eThe Active 250 measures -124dB SNR A-weighted at full power output. At 1-watt output — the level at which most music is actually played in a car — the SNR measures -106dB at 8 ohms and -102dB at 4 ohms. The amplifier is effectively silent below the signal. In a well-constructed SQ system, this matters enormously.\u003c\/p\u003e\n\u003ch3\u003eBandwidth\u003c\/h3\u003e\n\u003cp\u003e9.5Hz to 120kHz at -2dB is not a specification that exists to impress on paper. A bandwidth that extends cleanly to 120kHz means the amplifier is not introducing phase shift, compression, or rolloff within any frequency range your system will actually use. The musical information arrives intact.\u003c\/p\u003e\n\u003ch3\u003eDistortion\u003c\/h3\u003e\n\u003cp\u003eTHD+N measures 0.0001% at 1 watt across 8, 4, and 2-ohm loads. IMD measures 0.0043% at 60Hz\/7kHz. These are reference-grade figures that benchmark favorably against dedicated home audio amplification — in a chassis designed for automotive installation.\u003c\/p\u003e\n\u003cdiv class=\"aw-highlight\"\u003e\n\u003ch3\u003eBridged Configuration\u003c\/h3\u003e\n\u003cp\u003eTwo Active 250 units bridged at 16V deliver 400W RMS into 8 ohms and 680W RMS into 4 ohms — at the same 0.1% THD threshold. For high-sensitivity speaker builds or demanding subwoofer applications where a single amplifier is not enough, bridging two Active 250s is the correct path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- WHO IT'S FOR --\u003e\n\u003cdiv class=\"aw-section\"\u003e\n\u003ch2\u003eWho the Active 250 Is For.\u003c\/h2\u003e\n\u003cdiv class=\"aw-underline\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe Active 250 is not a mass-market amplifier. Audio Wave produces in limited quantities, by hand, to tolerances that a production line cannot maintain. Each unit is built to order and reflects the direct involvement of the designer at every stage of construction.\u003c\/p\u003e\n\u003cp\u003eIt is the right choice for an SQ competitor who needs amplification that does not add anything to the signal. It is the right choice for a music enthusiast building a reference-grade system in a dedicated vehicle and demanding components that belong in that conversation. It is the right choice for an installer building a client's flagship build where every part of the system needs to be the best available at that position in the chain.\u003c\/p\u003e\n\u003cp\u003eAt $2,499, the Active 250 occupies a tier where price is not the primary filter. The question is simply whether your build warrants amplification at this level.\u003c\/p\u003e\n\u003cdiv class=\"aw-grid\"\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003eSQ Competition\u003c\/h4\u003e\n\u003cp\u003eThe -124dB SNR, 0.0001% THD+N, and 9.5Hz–120kHz bandwidth are specifications that belong in a competition rulebook. When judges are listening for exactly what the amplifier adds — the Active 250 adds nothing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003eReference Home-to-Car Builds\u003c\/h4\u003e\n\u003cp\u003eThe Active 250 bridges the technical gap between the best car audio amplification and dedicated home audio reference equipment. For audiophiles who refuse to compromise that standard in their vehicle, it is the correct starting point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003eFlagship Installer Builds\u003c\/h4\u003e\n\u003cp\u003eFor the professional installer building a client's high-budget system, the Active 250 is an amplifier you can confidently specify knowing it will not be the limiting factor in the system — today or five years from now.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-card\"\u003e\n\u003ch4\u003eBridged High-Power Applications\u003c\/h4\u003e\n\u003cp\u003eTwo Active 250 units bridged at 16V produce 680W RMS at 4 ohms with the same distortion and noise floor as a single unit. For demanding subwoofer loads or high-sensitivity full-range builds requiring headroom, this is the correct path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- WARRANTY --\u003e\n\u003cdiv class=\"aw-section\"\u003e\n\u003ch2\u003eWarranty \u0026amp; Service.\u003c\/h2\u003e\n\u003cdiv class=\"aw-underline\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe Active 250 carries a 3-year warranty — a figure that reflects Audio Wave's confidence in their construction and component selection. Warranty claims in the Active line are exceptionally rare, which is itself a data point about the build quality and the care with which each unit is assembled before it leaves the facility.\u003c\/p\u003e\n\u003cdiv class=\"aw-warranty\"\u003e\n\u003cdiv class=\"aw-warranty-badge\"\u003e3 Year\u003cspan\u003eWarranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aw-warranty-text\"\u003e\n\u003ch4\u003eServiced in England by Audio Wave Directly\u003c\/h4\u003e\n\u003cp\u003eIn the unlikely event of a warranty service need, the Active 250 is returned to \u003cstrong\u003eAudio Wave Ltd in the UK\u003c\/strong\u003e for direct service by the team that built it. There are no third-party repair centers, no authorized service networks, and no ambiguity about who touches your amplifier. The unit goes back to the source. Audio Intensity handles all warranty coordination — contact us directly and we will manage the process on your behalf from start to finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CTA CLOSE --\u003e\n\u003cdiv class=\"aw-cta\"\u003e\n\u003ch2\u003eThe Active 250. Engineered Without Compromise.\u003c\/h2\u003e\n\u003cdiv class=\"aw-cta-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eUp to 450W RMS. -124dB SNR. 9.5Hz–120kHz. 24k gold connectors. Bespoke power supply capacitors. Plexiglass window chassis. Handcrafted in England. 3-year warranty. Exclusively available in the United States at Audio Intensity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Audio Wave","offers":[{"title":"Default Title","offer_id":43217707171929,"sku":"Active 250","price":2499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/audiowave-active-250-full-range-monoblock-amplifieramplifieraudio-wave-9392966.webp?v=1779355149"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/collections\/class-ab-amplifiers-186624.jpg?v=1778814850","url":"https:\/\/audiointensity.com\/collections\/class-ab-amplifiers.oembed?page=3","provider":"Audio Intensity","version":"1.0","type":"link"}