{"title":"US Acoustics Amplifiers","description":"\u003cdiv class=\"ai-collection-block ai-cat-amplifiers\"\u003e\n\n\u003ch2\u003eWhere US Acoustics Sits\u003c\/h2\u003e\n\n\u003cp\u003eUS Acoustics is the value end of high output. Two lines run under one name: Class D monoblocks from 1500W up to 8000W RMS at 1 ohm for the bass, and a Class AB multichannel line from a 2-channel up to a real six-channel for the front stage. The models are named after people, the ratings are honest, and the power-per-dollar is the reason we reach for it.\u003c\/p\u003e\n\n\u003cp\u003eThis is the brand we point people to when a boutique amp is more than the build needs. A four-channel of Class AB here costs less than the shipping on a reference amp, and it still does the job right. Everything carries a two-year warranty.\u003c\/p\u003e\n\n\u003ch2\u003eThe US Acoustics Lineup, Spec by Spec\u003c\/h2\u003e\n\n\u003cp\u003eEvery new US Acoustics amp we stock, with power and dimensions verified against the manufacturer. The Class D monoblocks are rated at 1 ohm, where an SPL amp is meant to live; the Class AB multichannel amps are rated per channel at 4 ohm.\u003c\/p\u003e\n\n\u003cdiv class=\"ai-table-wrap\"\u003e\n\u003ctable class=\"ai-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003eClass\u003c\/th\u003e\n\u003cth\u003ePower (RMS)\u003c\/th\u003e\n\u003cth\u003eDimensions L×W×H (in)\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLisa\u003c\/td\u003e\n\u003ctd\u003e4-channel\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eAB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e4 × 50W @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e12.4 × 8.9 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$159.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWendy\u003c\/td\u003e\n\u003ctd\u003e2-channel\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eAB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × 75W @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e7.5 × 8.9 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$159.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAndrea\u003c\/td\u003e\n\u003ctd\u003e2-channel\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eAB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × 150W @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e16.4 × 8.9 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$289.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMike\u003c\/td\u003e\n\u003ctd\u003eMonoblock\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e1500W @ 1Ω\u003c\/td\u003e\n\u003ctd\u003e14.1 × 8.9 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$329.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarbara Ann\u003c\/td\u003e\n\u003ctd\u003e4-channel\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eAB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e4 × 100W @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e17.7 × 8.9 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$399.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBig Ben\u003c\/td\u003e\n\u003ctd\u003eMonoblock\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e3500W @ 1Ω\u003c\/td\u003e\n\u003ctd\u003e24.6 × 8.4 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$599.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLanna\u003c\/td\u003e\n\u003ctd\u003e6-channel\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eAB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e6 × 150W @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e25.5 × 8.9 × 2.2\u003c\/td\u003e\n\u003ctd\u003e$695.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTony\u003c\/td\u003e\n\u003ctd\u003eMonoblock\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e6000W @ 1Ω\u003c\/td\u003e\n\u003ctd\u003e27.75 × 8.7 × 2.72\u003c\/td\u003e\n\u003ctd\u003e$999.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhil\u003c\/td\u003e\n\u003ctd\u003eMonoblock\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ai-class-badge\"\u003eD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e8000W @ 1Ω\u003c\/td\u003e\n\u003ctd\u003e32.75 × 8.9 × 2.72\u003c\/td\u003e\n\u003ctd\u003e$1,249.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe monoblocks step in even doublings, 1500W to 8000W at 1 ohm, so you buy the one that matches your sub rather than the biggest number. Big Ben, Tony and Phil are currently marked down from $899.99, $1,399.99 and $1,699.99. Every model also publishes its 4, 2 and 1 ohm figures on its product page.\u003c\/p\u003e\n\n\u003ch3\u003eClass D monoblocks: the bass line\u003c\/h3\u003e\n\u003cp\u003eFour monoblocks, rated at 1 ohm where a subwoofer amp does its work. \u003cstrong\u003eMike\u003c\/strong\u003e (1500W) suits a single sub, \u003cstrong\u003eBig Ben\u003c\/strong\u003e (3500W) a pair or a big single, and \u003cstrong\u003eTony\u003c\/strong\u003e (6000W) and \u003cstrong\u003ePhil\u003c\/strong\u003e (8000W) are for dedicated SPL builds with the alternator and battery to feed them. All four run big terminals and heavy fusing. See the wider field in \u003ca href=\"\/collections\/monoblock-amplifier\"\u003emonoblock amplifiers\u003c\/a\u003e and \u003ca href=\"\/collections\/class-d-amplifiers\"\u003eClass D amplifiers\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eClass AB multichannel: the front stage\u003c\/h3\u003e\n\u003cp\u003eFive amps for the speakers, all Class AB with the bias-current linearity a front stage rewards. \u003cstrong\u003eWendy\u003c\/strong\u003e (2 x 75W) and \u003cstrong\u003eAndrea\u003c\/strong\u003e (2 x 150W) are dedicated 2-channels; \u003cstrong\u003eLisa\u003c\/strong\u003e (4 x 50W) and \u003cstrong\u003eBarbara Ann\u003c\/strong\u003e (4 x 100W) cover front and rear or a bridged sub; and \u003cstrong\u003eLanna\u003c\/strong\u003e (6 x 150W) is a genuine six-channel for an active three-way at a price the architecture rarely comes at. See \u003ca href=\"\/collections\/class-ab-amplifiers\"\u003eClass AB amplifiers\u003c\/a\u003e, \u003ca href=\"\/collections\/2-channel-amplifiers\"\u003e2-channel\u003c\/a\u003e, \u003ca href=\"\/collections\/4-channel-amplifiers\"\u003e4-channel\u003c\/a\u003e and the \u003ca href=\"\/collections\/5-6-8-channel-amplifiers\"\u003e5, 6 and 8 channel\u003c\/a\u003e pages.\u003c\/p\u003e\n\n\u003caside class=\"ai-callout-spec\"\u003e\n\u003cp class=\"ai-callout-label\"\u003eMonoblocks Are Rated at 1 Ohm\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"ai-spec-key\"\u003eThe headline wattage on Mike, Big Ben, Tony and Phil is RMS at 1 ohm.\u003c\/span\u003e That is where an SPL monoblock is meant to run, and it is roughly double the 2 ohm figure and quadruple the 4 ohm figure. \u003cspan class=\"ai-spec-key\"\u003eWire the sub to 1 ohm to get the rated power\u003c\/span\u003e, and size the electrical system to match, an 8000W amp draws real current.\u003c\/p\u003e\n\u003c\/aside\u003e\n\n\u003cp\u003eMatch the amp to what it drives, not to the biggest number. The drivers are in \u003ca href=\"\/collections\/car-subwoofers\"\u003ecar subwoofers\u003c\/a\u003e and \u003ca href=\"\/collections\/component-sets\"\u003ecomponent sets\u003c\/a\u003e, the crossover work belongs to a \u003ca href=\"\/collections\/digital-sound-processor\"\u003eDSP\u003c\/a\u003e on an active build, and gain is what protects all of 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. The full range is in the \u003ca href=\"\/collections\/car-amplifiers\"\u003eamplifier lineup\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003caside class=\"ai-callout-cta\"\u003e\n\u003cp class=\"ai-callout-label\"\u003eNot Sure Which US Acoustics Amp Fits?\u003c\/p\u003e\n\u003cp\u003eTell us your subwoofer or speaker specs and how you are wiring them, and we will tell you which model matches and at what impedance, 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 US Acoustics Amplifier Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is US Acoustics known for?\u003c\/h3\u003e\n\u003cp\u003eHonest high output at a value price. Two lines carry the brand: Class D monoblocks from 1500W to 8000W RMS at 1 ohm for subwoofer duty, and a Class AB multichannel line from a 2-channel up to a six-channel for the front stage. The power-per-dollar is the point, and everything carries a two-year warranty.\u003c\/p\u003e\n\n\u003ch3\u003eAre US Acoustics monoblocks rated at 1 ohm?\u003c\/h3\u003e\n\u003cp\u003eYes. The headline wattage on Mike (1500W), Big Ben (3500W), Tony (6000W) and Phil (8000W) is RMS at 1 ohm, which is where an SPL monoblock is built to run. Each also publishes its 4, 2 and 1 ohm figures, and the drops are roughly by half at each doubling of impedance. Wire the subwoofer to 1 ohm to get the rated power.\u003c\/p\u003e\n\n\u003ch3\u003eWhich US Acoustics amp do I use for a subwoofer?\u003c\/h3\u003e\n\u003cp\u003eOne of the Class D monoblocks, matched to the driver. Mike (1500W) for a single sub, Big Ben (3500W) for a pair or a large single, and Tony (6000W) or Phil (8000W) for dedicated SPL builds with the electrical system to feed them. Match the amp's RMS at your wired impedance to the sub's RMS rating.\u003c\/p\u003e\n\n\u003ch3\u003eWhich US Acoustics amp do I use for the front stage?\u003c\/h3\u003e\n\u003cp\u003eOne of the Class AB multichannel amps. Wendy (2 x 75W) or Andrea (2 x 150W) for a dedicated front pair, Lisa (4 x 50W) or Barbara Ann (4 x 100W) for front and rear or a bridged sub, and Lanna (6 x 150W) for a full active three-way. Class AB is the topology a front stage rewards.\u003c\/p\u003e\n\n\u003ch3\u003eAre the multichannel amps Class AB?\u003c\/h3\u003e\n\u003cp\u003eYes, all five. Wendy, Andrea, Lisa, Barbara Ann and Lanna are Class AB, using bias current to eliminate crossover distortion for smoother full-range reproduction than Class D. That is why they are the front-stage line and the monoblocks are the bass line.\u003c\/p\u003e\n\n\u003ch3\u003eAre these new with manufacturer warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Every US Acoustics amplifier is brand new, sold by an authorized dealer, and carries the full two-year manufacturer warranty. We handle warranty claims directly with the brand.\u003c\/p\u003e\n\n\u003ch3\u003eHow much power do I actually need?\u003c\/h3\u003e\n\u003cp\u003eMatch the amplifier's RMS output at your wired impedance to the RMS rating of the driver, ideally 100% to 150% of it for a subwoofer and 75% to 150% per channel for speakers. Underpowering and clipping is what kills drivers, not clean power. Send us the specs and we will confirm the match.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"us-acoustics-big-ben-3500w-monoblock-amplifier","title":"US Acoustics Big Ben 3500w Monoblock Amplifier","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 Mono Class D Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Big Ben 3500W Monoblock Amplifier\u003c\/h2\u003e\n    \u003cp\u003eA Tower of Power. 3500 watts RMS at 1 ohm from an ultra efficient Class D design with the heat sink, capacitor banks, and control set to use every watt of it daily.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e875W @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e1750W @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e3500W @ 1 Ohm\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\u003e3500 Watts of Daily-Drivable Bass\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Big Ben is a 1-ohm stable Class D monoblock rated at 875 watts RMS into 4 ohms, 1750 watts RMS into 2 ohms, and 3500 watts RMS into 1 ohm, all at 14.4 volts. This is the second rung of the US Acoustics mono ladder, built for subwoofer systems that need serious, sustained output rather than a peak number on a sticker.\u003c\/p\u003e\n  \u003cp\u003eSustained is the operative word. A thermally stable heat sink design maximizes heat transfer efficiency, and extreme bulk capacitor banks hold the power supply steady through hard, repeated bass transients. The result on paper: signal-to-noise above 107 dB and a damping factor greater than 350 at 100 Hz into 4 ohms, which translates to subwoofer control, not just subwoofer volume.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e3500W\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eRMS @ 1 Ohm\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026gt;107 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;350\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\"\u003e1 Ohm\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eStable\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eA Complete Bass Control Set\u003c\/h3\u003e\n  \u003ch4\u003eButterworth Low-Pass, 10 to 250 Hz\u003c\/h4\u003e\n  \u003cp\u003eThe 24 dB per octave low-pass filter sweeps from 10 to 250 Hz, steep enough to keep midrange content completely out of the subwoofer and wide enough for any crossover point a system design calls for.\u003c\/p\u003e\n  \u003ch4\u003eSubsonic Filter, 15 to 55 Hz\u003c\/h4\u003e\n  \u003cp\u003eThe adjustable subsonic filter protects subwoofers in ported enclosures from over-excursion below tuning frequency. With 3500 watts on tap, this filter is not optional equipment in a ported build, it is what keeps your subwoofers alive. Set it just below box tuning and let the system play hard safely.\u003c\/p\u003e\n  \u003ch4\u003eBass Boost and Wired Remote\u003c\/h4\u003e\n  \u003cp\u003eVariable bass boost from 0 to +12 dB at 50 Hz, with the wired remote included in the box for front-seat level control.\u003c\/p\u003e\n  \u003ch4\u003ePhase Control, 0 to 180 Degrees\u003c\/h4\u003e\n  \u003cp\u003eVariable phase shift lets you align the subwoofer with the front stage so bass arrives with the music instead of behind it. It is one of the most underused tools in bass integration, and the Big Ben has it onboard.\u003c\/p\u003e\n\n  \u003ch3\u003eMatch It to the Right Enclosure\u003c\/h3\u003e\n  \u003cp\u003eAn amplifier this size deserves an enclosure engineered to the same standard. Our Proline X enclosures are CNC-cut in Tullahoma, Tennessee and matched to specific subwoofers, and we can tell you exactly which subwoofer and enclosure combination will use the Big Ben's power properly. Ported builds especially benefit from the Big Ben's adjustable subsonic filter.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003ePlan the electrical system:\u003c\/strong\u003e the Big Ben requires external fusing of 400A, not included. Current demand at this power level means your charging system matters: quality large-gauge power and ground runs, a big three upgrade at minimum, and an honest look at alternator and battery capacity for sustained playback. The chassis measures 24.6 x 8.4 x 2.2 inches, so measure the install space before ordering. Extra large gauge terminals accept the wire this amplifier needs.\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, with diagnostic LEDs for fast troubleshooting. Every Big Ben 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 Big Ben fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your subwoofers, enclosure, and vehicle and we will tell you honestly whether the Big Ben is the right amount of power, and how to wire it safely.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42819711172697,"sku":null,"price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-big-ben-3500w-monoblock-amplifieramplifierus-acoustics-1795514.jpg?v=1764434052"},{"product_id":"us-acoustics-tony-6000w-monoblock-amplifier","title":"US Acoustics Tony 6000w Monoblock Amplifier","description":"\u003cdiv style=\"background: #18181b !important; border: 1px solid #3f3f46 !important; border-top: 4px solid #b91c1c !important; border-radius: 12px; padding: 28px; color: #e4e4e7 !important;\"\u003e\n\n  \u003cp style=\"color: #ef4444 !important; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 10px 0;\"\u003eAuthorized Dealer Warranty\u003c\/p\u003e\n  \u003ch3 style=\"color: #ffffff !important; font-size: 22px; margin: 0 0 14px 0;\"\u003eUS Acoustics Limited 1-Year Warranty\u003c\/h3\u003e\n\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0;\"\u003eThe US Acoustics Tony is covered by a limited 1-year warranty against defects in materials and workmanship under normal use. This differs from the 2-year warranty on the rest of the US Acoustics line and reflects the high-output nature of this amplifier. Warranty coverage requires purchase from an authorized US Acoustics dealer. Audio Intensity is an authorized dealer, so your coverage is valid from day one.\u003c\/p\u003e\n\n  \u003ch4 style=\"color: #ef4444 !important; font-size: 17px; margin: 18px 0 8px 0;\"\u003eHow a Claim Works\u003c\/h4\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0;\"\u003eContact Audio Intensity first. With a high-power amplifier, many issues trace back to the electrical system, gain setting, or wiring rather than the amplifier itself, and we can often diagnose them over the phone before anything ships. If the amplifier does need warranty service, we coordinate the claim with US Acoustics on your behalf. Keep your order confirmation as proof of authorized dealer purchase.\u003c\/p\u003e\n\n  \u003ch4 style=\"color: #ef4444 !important; font-size: 17px; margin: 18px 0 8px 0;\"\u003eWhat Is Not Covered\u003c\/h4\u003e\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0 0 14px 0;\"\u003eAs with any manufacturer warranty, coverage does not extend to damage from improper installation or wiring, inadequate fusing, operation below rated impedance, physical abuse, water damage, or units that have been opened or modified. At this power level a correctly built electrical system, proper 0-gauge wiring, and adequate fusing are not optional, and they protect both your amplifier and your coverage.\u003c\/p\u003e\n\n  \u003cp style=\"color: #e4e4e7 !important; font-size: 16px; line-height: 1.65; margin: 0;\"\u003eEvery purchase also includes lifetime tech support from real installers. Questions about wiring, gain setting, or electrical requirements? Reach out anytime at \u003cstrong style=\"color: #ffffff !important;\"\u003econtact@audiointensity.com\u003c\/strong\u003e or \u003cstrong style=\"color: #ffffff !important;\"\u003e707-999-3071\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42819881173081,"sku":null,"price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-tony-6000w-monoblock-amplifieramplifierus-acoustics-3741490.jpg?v=1762580607"},{"product_id":"us-acoustics-phil-8000w-monoblock-amplifier","title":"US Acoustics Phil 8000w Monoblock Amplifier","description":"\u003cstyle\u003e\n  .product-description-container {\n    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n    line-height: 1.6;\n    color: #333;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 20px;\n  }\n  \n  .hero-section {\n    background: linear-gradient(135deg, #0066cc 0%, #004d99 100%);\n    color: white;\n    padding: 40px;\n    border-radius: 10px;\n    margin-bottom: 30px;\n    text-align: center;\n  }\n  \n  .hero-section h1 {\n    font-size: 2.5em;\n    margin-bottom: 15px;\n    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);\n  }\n  \n  .hero-section .subtitle {\n    font-size: 1.3em;\n    margin-bottom: 10px;\n    opacity: 0.95;\n  }\n  \n  .condition-badge {\n    display: inline-block;\n    background: rgba(255,255,255,0.2);\n    padding: 10px 25px;\n    border-radius: 25px;\n    font-weight: bold;\n    margin-top: 15px;\n    border: 2px solid rgba(255,255,255,0.5);\n  }\n  \n  .features-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));\n    gap: 20px;\n    margin: 30px 0;\n  }\n  \n  .feature-box {\n    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);\n    padding: 25px;\n    border-radius: 8px;\n    border-left: 4px solid #0066cc;\n    transition: transform 0.3s ease;\n  }\n  \n  .feature-box:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 5px 15px rgba(0,102,204,0.3);\n  }\n  \n  .feature-icon {\n    font-size: 2em;\n    margin-bottom: 10px;\n    color: #0066cc;\n  }\n  \n  .feature-title {\n    font-weight: bold;\n    color: #0066cc;\n    margin-bottom: 8px;\n    font-size: 1.1em;\n  }\n  \n  .section-title {\n    color: #0066cc;\n    border-bottom: 3px solid #0066cc;\n    padding-bottom: 10px;\n    margin: 40px 0 20px 0;\n    font-size: 1.8em;\n  }\n  \n  .specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    margin: 20px 0;\n    background: white;\n    box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n  }\n  \n  .specs-table th {\n    background: linear-gradient(135deg, #0066cc 0%, #004d99 100%);\n    color: white;\n    padding: 15px;\n    text-align: left;\n    font-weight: bold;\n  }\n  \n  .specs-table td {\n    padding: 12px 15px;\n    border-bottom: 1px solid #e9ecef;\n  }\n  \n  .specs-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  \n  .specs-table tr:hover {\n    background-color: #e3f2fd;\n  }\n  \n  .info-box {\n    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);\n    border-left: 5px solid #0066cc;\n    padding: 20px;\n    margin: 20px 0;\n    border-radius: 5px;\n  }\n  \n  .warning-box {\n    background: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);\n    border-left: 5px solid #ffc107;\n    padding: 20px;\n    margin: 20px 0;\n    border-radius: 5px;\n  }\n  \n  .highlight-box {\n    background: linear-gradient(135deg, #d4edda 0%, #a8d5ba 100%);\n    border-left: 5px solid #28a745;\n    padding: 20px;\n    margin: 20px 0;\n    border-radius: 5px;\n  }\n  \n  .comparison-table {\n    width: 100%;\n    border-collapse: collapse;\n    margin: 20px 0;\n    background: white;\n    box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n  }\n  \n  .comparison-table th {\n    background: linear-gradient(135deg, #0066cc 0%, #004d99 100%);\n    color: white;\n    padding: 15px;\n    text-align: center;\n    font-weight: bold;\n  }\n  \n  .comparison-table td {\n    padding: 12px 15px;\n    border-bottom: 1px solid #e9ecef;\n    text-align: center;\n  }\n  \n  .comparison-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  \n  .advantage {\n    color: #28a745;\n    font-weight: bold;\n  }\n  \n  ul.checkmark-list {\n    list-style: none;\n    padding-left: 0;\n  }\n  \n  ul.checkmark-list li {\n    padding: 8px 0;\n    padding-left: 30px;\n    position: relative;\n  }\n  \n  ul.checkmark-list li:before {\n    content: \"✓\";\n    color: #28a745;\n    font-weight: bold;\n    position: absolute;\n    left: 0;\n    font-size: 1.3em;\n  }\n  \n  .footer-section {\n    background: linear-gradient(135deg, #0066cc 0%, #004d99 100%);\n    color: white;\n    padding: 30px;\n    border-radius: 10px;\n    margin-top: 40px;\n    text-align: center;\n  }\n  \n  @media (max-width: 768px) {\n    .hero-section h1 {\n      font-size: 1.8em;\n    }\n    \n    .hero-section .subtitle {\n      font-size: 1.1em;\n    }\n    \n    .features-grid {\n      grid-template-columns: 1fr;\n    }\n    \n    .specs-table, .comparison-table {\n      font-size: 0.9em;\n    }\n    \n    .specs-table th, .specs-table td,\n    .comparison-table th, .comparison-table td {\n      padding: 8px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"product-description-container\"\u003e\n\u003cdiv class=\"hero-section\"\u003e\n\u003ch2\u003e🚀 \u003cspan style=\"color: rgb(255, 255, 255);\"\u003eUS Acoustics Phil 8000W Class D Monoblock Amplifier\u003c\/span\u003e 🚀\u003c\/h2\u003e\n\u003cdiv class=\"subtitle\"\u003eThe Ultimate Expression of Extreme Power: 8000 Watts RMS at 1-Ohm\u003c\/div\u003e\n\u003cdiv class=\"subtitle\"\u003eTriple 0-Gauge Terminals | 700-Ampere Fusing | \u0026gt;95% Efficiency | Competition Domination Engineering\u003c\/div\u003e\n\u003cdiv class=\"condition-badge\"\u003e✨ BRAND NEW CLOSEOUT OPPORTUNITY - RARE FLAGSHIP AVAILABILITY ✨\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"features-grid\"\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e⚡\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eStratospheric Power Output\u003c\/div\u003e\n\u003cdiv\u003e8000W RMS @ 1Ω | 4000W RMS @ 2Ω | 2000W RMS @ 4Ω - measured at 14.4V with \u0026lt;1% THD for absolute bass supremacy\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e🔌\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eTriple 0-Gauge Architecture\u003c\/div\u003e\n\u003cdiv\u003eRevolutionary 3× 0-gauge power and ground inputs for distributed 700A current handling - eliminates bottlenecks at the highest power levels\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e🛡️\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003e700-Ampere Protection System\u003c\/div\u003e\n\u003cdiv\u003eRequires 700A external fusing for peak current demands - engineered for the most extreme competition SPL and multi-subwoofer applications\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e❄️\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eUltra-Efficient Class D\u003c\/div\u003e\n\u003cdiv\u003e\u0026gt;95% efficiency minimizes thermal waste and electrical loss - delivers maximum power to subwoofers with minimal heat generation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e🎯\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eProfessional Competition Tuning\u003c\/div\u003e\n\u003cdiv\u003e24dB\/octave variable low-pass (35-250Hz), adjustable subsonic (10-50Hz), 0-180° phase control, clipping LED protection indicator\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e🎚️\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eWired Remote Bass Control\u003c\/div\u003e\n\u003cdiv\u003eIncluded remote for real-time bass level adjustment from driver's seat - competition SPL to daily listening with a single knob\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e📏\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eCompetition-Grade Chassis\u003c\/div\u003e\n\u003cdiv\u003e32.75\" × 8.9\" × 2.72\" footprint with thermally stable heatsink - engineered for sustained 8000W output without thermal limiting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-box\"\u003e\n\u003cdiv class=\"feature-icon\"\u003e💰\u003c\/div\u003e\n\u003cdiv class=\"feature-title\"\u003eFlagship Closeout Value\u003c\/div\u003e\n\u003cdiv\u003eBrand new, never installed - factory warranty included. Exceptional pricing on ultimate-tier 8000W power for competition and extreme applications\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"section-title\"\u003e🏆 The Phil Flagship: When 6000 Watts Isn't Enough\u003c\/h2\u003e\n\u003cp\u003eIn the rarefied atmosphere of extreme competition car audio, where sound pressure level measurements approach the threshold of human pain tolerance and subwoofer arrays consume electrical power measured in kilowatts rather than watts, the US Acoustics Phil 8000W monoblock amplifier represents the absolute pinnacle of amplified bass authority. This isn't an amplifier for enthusiasts exploring high-performance audio or upgrading from factory systems—this is a purpose-engineered competition weapon designed for SPL competitors who measure success in fractional decibels, who build electrical systems capable of generating 700+ amperes of current, and who understand that dominating the 35-50Hz frequency range at 165+ decibels requires not just extreme power, but exceptional engineering that delivers that power cleanly, efficiently, and reliably under the most demanding conditions imaginable.\u003c\/p\u003e\n\u003cp\u003eNamed with the gravitas befitting its position as the ultimate flagship in the US Acoustics monoblock lineup, the Phil represents a 33% power increase over the already-extreme Tony 6000W while maintaining the engineering disciplines that define competition-grade amplifiers: ultra-high efficiency Class D topology exceeding 95%, distributed current handling through triple 0-gauge terminals that prevent resistance bottlenecks, comprehensive competition-focused tuning controls including clipping LED protection, and thermal management engineered for sustained full-output operation in the brutal environment of a competition vehicle's cargo area where ambient temperatures can exceed 130°F during summer SPL events.\u003c\/p\u003e\n\u003cp\u003eWhat distinguishes the Phil in the ultra-high-power amplifier category—where 5000-10,000 watt ratings are common but actual sustained output is often disappointing—is the engineering infrastructure implemented to actually deliver 8000 watts continuously under real-world thermal and electrical conditions. The unprecedented 700-ampere fusing requirement isn't marketing hyperbole; it's calculated engineering based on actual current draw at maximum output with safety margin for peak transients. The triple 0-gauge power and ground terminals distribute this extreme current across multiple conductors to eliminate the resistance heating and voltage drop that plague single-terminal designs when attempting to deliver 700 amperes through copper wire. The \u0026gt;95% efficiency rating means approximately 400 watts of waste heat at full output—less than half the thermal burden of a typical Class AB amplifier delivering the same power—enabling sustained high-output operation that would thermal-limit less efficient designs within minutes.\u003c\/p\u003e\n\u003cp\u003eThis is a brand new, never-installed closeout opportunity on the flagship monoblock amplifier that represents the absolute summit of US Acoustics' engineering capability. Whether you're building a multi-subwoofer competition SPL system targeting 170+ decibels, upgrading from a 5000-6000 watt amplifier that's reached its limits in your quest for higher output, or designing a bass system that must absolutely, categorically dominate every other system at every event, the Phil delivers the power, efficiency, current-handling capability, and competition-grade tuning precision that separates regional competitors from national champions.\u003c\/p\u003e\n\u003ch2 class=\"section-title\"\u003e📊 Complete Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Category\u003c\/th\u003e\n\u003cth\u003ePhil 8000W Performance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Output @ 14.4V, \u0026lt;1% THD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000W RMS @ 4Ω | 4000W RMS @ 2Ω | 8000W RMS @ 1Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmplifier Topology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass D ultra-efficient design with \u0026gt;95% efficiency rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3× 0-gauge power inputs + 3× 0-gauge ground inputs (distributed 700A current handling)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExternal Fusing Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e700 amperes total (example: 3× 250A ANL, 2× 350A MEGA, or 1× 700A MEGA fuse)\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;95 dB (A-weighted, exceptionally clean signal path for competition-grade audio)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamping Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;300 @ 4Ω (exceptional subwoofer control and transient response precision)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14Hz - 248Hz ±1dB (optimized for subwoofer and extreme low-frequency reproduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLow-Pass Crossover\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVariable 35Hz - 250Hz, 24dB\/octave slope (competition-grade steep filtering)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubsonic Filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVariable 10Hz - 50Hz (protects drivers from infrasonic over-excursion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0° - 180° continuously variable (optimize acoustic summation and SPL output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200mV - 6.0V adjustable (compatible with all head units, processors, and DSP systems)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥10kΩ (minimizes loading on source equipment signal outputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBass Remote Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWired remote bass level control included (0-100% adjustment range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Circuits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermal protection, short circuit protection, DC offset protection, overload protection, low-voltage protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagnostic LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower indicator, protection status indicator, clipping LED (real-time distortion warning system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32.75\" × 8.9\" × 2.72\" (832mm × 226mm × 69mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Footprint\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRequires minimum 33\" × 9.5\" mounting surface with adequate ventilation clearance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 22-28 lbs (substantial construction with extreme bulk capacitor banks)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty Coverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1-year limited manufacturer warranty (parts and labor, standard for extreme-power models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Condition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrand new, never installed - closeout pricing on discontinued flagship inventory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWired bass remote control, mounting hardware, amplifier covers, user manual, warranty card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 class=\"section-title\"\u003e🎖️ US Acoustics Monoblock Hierarchy: The Path to 8000 Watts\u003c\/h2\u003e\n\u003cp\u003eUS Acoustics offers three flagship monoblock amplifiers representing escalating power tiers for different bass system scales and competition objectives. Understanding the progression from Big Ben (3500W) through Tony (6000W) to Phil (8000W) helps determine which amplifier matches your power requirements, electrical system capacity, and performance goals.\u003c\/p\u003e\n\u003ctable class=\"comparison-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eBig Ben 3500W\u003c\/th\u003e\n\u003cth\u003eTony 6000W\u003c\/th\u003e\n\u003cth\u003ePhil 8000W\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower @ 1Ω\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500W RMS\u003c\/td\u003e\n\u003ctd\u003e6000W RMS\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e8000W RMS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower @ 2Ω\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1750W RMS\u003c\/td\u003e\n\u003ctd\u003e3000W RMS\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e4000W RMS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower @ 4Ω\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e875W RMS\u003c\/td\u003e\n\u003ctd\u003e1500W RMS\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e2000W RMS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Advantage over Big Ben\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBaseline\u003c\/td\u003e\n\u003ctd\u003e+71% more power\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e+129% more power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Advantage over Tony\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-42% less power\u003c\/td\u003e\n\u003ctd\u003eBaseline\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e+33% more power\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEfficiency Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75-85% typical\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95%\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e\u0026gt; 95%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExternal Fusing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400 amperes\u003c\/td\u003e\n\u003ctd\u003e570 amperes\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e700 amperes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExtra large gauge\u003c\/td\u003e\n\u003ctd\u003e3× 0-gauge\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e3× 0-gauge\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal-to-Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;90 dB\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95 dB\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e\u0026gt;95 dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamping Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;250 @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;300 @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e\u0026gt;300 @ 4Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (Length)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24.6\"\u003c\/td\u003e\n\u003ctd\u003e27.75\"\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e32.75\" (longest)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty Coverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-year limited\u003c\/td\u003e\n\u003ctd\u003e1-year limited\u003c\/td\u003e\n\u003ctd\u003e1-year limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClipping LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e✓ Included\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e✓ Included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1-2 high-power subs\u003cbr\u003eDaily driver SPL\u003c\/td\u003e\n\u003ctd\u003e2-4 competition subs\u003cbr\u003eExtreme SPL\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"advantage\"\u003e4-8+ competition subs\u003cbr\u003eUltimate SPL domination\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"info-box\"\u003e\n\u003ch3\u003e📊 Power Progression Context: Understanding 8000 Watts\u003c\/h3\u003e\n\u003cp\u003eThe Phil's 8000W rating represents 129% more power than the Big Ben (3500W) and 33% more power than the Tony (6000W). In sound pressure level terms, the Phil provides approximately +1.2dB SPL advantage over the Tony and +3.6dB over the Big Ben when driving identical subwoofer loads. While these SPL gains may seem modest numerically, in competition SPL where 0.1dB separates podium positions and 1dB represents the difference between regional champion and national contender, the Phil's power advantage is decisive. Additionally, the 8000W power level provides extraordinary headroom for dynamic bass peaks, enabling clean output at extreme levels where lesser amplifiers clip and distort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e🎯 Choosing Your US Acoustics Monoblock: Application Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Big Ben 3500W if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eYour system includes one or two high-power subwoofers (dual 12\" or 15\" drivers)\u003c\/li\u003e\n\u003cli\u003eYour bass goals focus on daily-driver SPL with competition-level quality\u003c\/li\u003e\n\u003cli\u003eYour electrical system supports 400A fusing and 500-600A alternator capacity\u003c\/li\u003e\n\u003cli\u003eYou prefer longer warranty coverage (2-year vs 1-year)\u003c\/li\u003e\n\u003cli\u003eYour budget prioritizes value over absolute maximum power\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Tony 6000W if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eYour system includes two to four high-power subwoofers (4× 12\", 4× 15\", or equivalent)\u003c\/li\u003e\n\u003cli\u003eYou're competing in regional SPL competitions where 6000W is competitive\u003c\/li\u003e\n\u003cli\u003eYour electrical system is upgraded to support 570A fusing and 600-700A alternator capacity\u003c\/li\u003e\n\u003cli\u003eYou need extreme power with slightly more compact dimensions (27.75\" vs 32.75\" length)\u003c\/li\u003e\n\u003cli\u003eYou're upgrading from 3000-4000W and need significant power increase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Phil 8000W if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eYour system includes four or more competition-grade subwoofers (6× 12\", 4× 15\", 4× 18\", or larger arrays)\u003c\/li\u003e\n\u003cli\u003eYou're competing at national-level SPL competitions where maximum power is critical\u003c\/li\u003e\n\u003cli\u003eYour electrical system is fully built to support 700A fusing and 700-800A alternator capacity\u003c\/li\u003e\n\u003cli\u003eYou've maximized all other system variables (subwoofers, enclosure, electrical) and need more power\u003c\/li\u003e\n\u003cli\u003eYou're targeting 170+ decibel SPL output and require absolute maximum amplifier power\u003c\/li\u003e\n\u003cli\u003eYou understand that 8000W demands professional-level electrical system engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"highlight-box\"\u003e\n\u003ch3\u003e💡 The Phil Philosophy: Power for Power's Sake, or Strategic Advantage?\u003c\/h3\u003e\n\u003cp\u003eThe question inevitably arises: do you really need 8000 watts? For most enthusiasts—even those building serious competition systems—the honest answer is probably not. The Tony 6000W delivers extreme power sufficient for 165+ decibel output with proper subwoofers and enclosure. The Phil's 8000W advantage provides approximately 1.2dB additional SPL—meaningful in competition, but not transformative for daily listening. However, the Phil serves two critical purposes: (1) It provides the absolute maximum power for competitors who've optimized every other system variable and need that final 1-2dB advantage for podium placement. (2) It offers extraordinary power headroom that enables effortless dynamics—where 6000W might approach clipping on extreme bass transients, 8000W delivers those same peaks with reserve capacity remaining. Choose the Phil not just for its 8000W rating, but for the strategic advantages that rating enables.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"section-title\"\u003e🔌 Electrical System Infrastructure for 8000 Watts: Engineering at the Extreme\u003c\/h2\u003e\n\u003cp\u003eThe Phil 8000W monoblock amplifier represents an electrical power demand that exceeds the capabilities of not just factory vehicle electrical systems, but most \"upgraded\" systems built around 200-300 ampere alternators and single battery banks. A typical high-performance electrical system supporting 3000-4000 watts might feel adequate until you attempt to unleash 8000 watts—at which point voltage sag, dimming headlights, thermal limiting, and even electrical system damage reveal the inadequacy. Understanding the electrical infrastructure required for 8000 watts is absolutely critical before purchasing the Phil—this amplifier will mercilessly expose any weakness in your electrical system's capacity, wiring, or grounding.\u003c\/p\u003e\n\u003cp\u003eAt full 8000W output with \u0026gt;95% efficiency, the Phil draws approximately 600-630 amperes of current from your electrical system (accounting for efficiency losses and quiescent current). Add peak dynamic demands during musical transients that can exceed RMS power by 50-100%, and instantaneous current draw can approach or exceed 700 amperes—hence the 700A fusing requirement. For perspective, a typical factory alternator generates 120-150 amperes total output. The Phil alone requires approximately 4.7× the output of a factory alternator at full power. This isn't a limitation of the amplifier; it's the inescapable reality of extreme power that demands comprehensive, professionally-engineered electrical system infrastructure.\u003c\/p\u003e\n\u003ch3\u003e⚙️ High-Output Alternator: 700-800 Ampere Minimum Requirement\u003c\/h3\u003e\n\u003cp\u003eThe foundation of any 8000-watt electrical system is a high-output alternator rated for minimum 700-800 amperes at idle speed (1800-2000 RPM). This capacity provides sufficient current to power the Phil at full output while maintaining 13.8-14.4V system voltage and supporting your vehicle's factory electrical loads (fuel injection, ignition, cooling fans, lights, instrument cluster, etc.).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternator specifications for Phil 8000W:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e700A High-Output Alternator (Minimum):\u003c\/strong\u003e Baseline requirement for full 8000W output - provides adequate current with modest headroom for electrical system losses and factory loads. Suitable for systems where Phil is the sole amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e800A High-Output Alternator (Recommended):\u003c\/strong\u003e Preferred specification - provides generous headroom for peak dynamic demands exceeding 700A and supports additional amplifiers (midbass, midrange, tweeter amplifiers) in multi-amp competition systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Alternator Configuration (Competition Standard):\u003c\/strong\u003e Ultimate solution for extreme SPL vehicles - factory alternator + 500-600A high-output alternator = combined 700-900A capacity with redundancy and load distribution. Common in national-level competition vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Alternator Systems (Extreme Applications):\u003c\/strong\u003e Rare but documented - three alternators providing 1000+ amperes combined capacity for multi-amplifier systems exceeding 15,000W total power. Requires custom mounting brackets and drive systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"warning-box\"\u003e\n\u003ch3\u003e⚠️ Critical: Verify Idle Speed Current Rating\u003c\/h3\u003e\n\u003cp\u003eWhen evaluating high-output alternators for 8000W applications, demand specification sheets showing current output at idle speed (1800-2000 RPM), not maximum engine speed (5000+ RPM). Many alternators advertise impressive amperage at high RPM but deliver only 60-70% of rated output at idle. Since competition SPL runs occur from idle engine speed, and much listening happens at idle or low RPM (parking lots, traffic lights), the idle-speed current rating determines real-world usability. A quality 700A alternator should deliver 650-700A at 1800 RPM idle, not just at 5000 RPM cruise. If specifications are unavailable or vague, the alternator is unsuitable for serious competition applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e🔋 Battery Bank Strategy: Energy Storage for 700-Ampere Transients\u003c\/h3\u003e\n\u003cp\u003eWhile alternators provide continuous current, batteries store electrical energy for peak transient demands that momentarily exceed alternator capacity. During extreme bass hits where the Phil instantaneously draws 700+ amperes, batteries supplement alternator output to maintain system voltage and prevent voltage sag that would trigger low-voltage protection or audible performance reduction. For 8000-watt applications, an extensive battery bank is mandatory—not optional.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery bank configurations for 8000W power:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Battery:\u003c\/strong\u003e Premium AGM battery (Group 31 or larger, 1000+ CCA) in factory location - provides starting power and supports factory electrical loads with high current capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Battery Bank:\u003c\/strong\u003e Two to four AGM batteries (Group 31, 100-125Ah each) located near Phil amplifier - provides 200-500Ah total energy storage for sustained high-output sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLithium Iron Phosphate Option:\u003c\/strong\u003e LiFePO4 batteries offer superior discharge rates (2C-5C continuous, meaning 200-500A per 100Ah battery) and lighter weight than AGM. Ideal for competition SPL where weight distribution matters and peak current delivery is critical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Capacity Target:\u003c\/strong\u003e 300-500Ah total battery capacity (front + rear combined) for extended competition runs and demonstration sessions without voltage sag below 12.8V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Charging Infrastructure:\u003c\/strong\u003e Consider secondary battery chargers or DC-DC charging systems to maintain rear battery bank charge when engine is running at low RPM or idle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🛠️ The \"Big Three\" Upgrade: Mandatory for 700-Ampere Current Flow\u003c\/h3\u003e\n\u003cp\u003eFactory battery cables and ground straps are engineered for 120-150 ampere alternators and minimal electrical loads—wholly inadequate for 700-800 ampere alternators and 700A amplifier current demands. The \"Big Three\" upgrade replaces factory wiring with 1\/0 AWG or 4\/0 AWG copper wire to create low-resistance current paths capable of handling extreme amperage without voltage drop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBig Three upgrade for 8000W applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade #1 - Alternator to Battery Positive:\u003c\/strong\u003e Replace factory wire with 1\/0 AWG or 4\/0 AWG - ensures 700-800A alternator can deliver full current to battery and electrical system without voltage drop from resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade #2 - Battery Negative to Engine Block:\u003c\/strong\u003e Replace factory wire with 1\/0 AWG or 4\/0 AWG - improves grounding path for alternator and reduces ground potential differences that cause voltage drop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade #3 - Engine Block to Chassis Ground:\u003c\/strong\u003e Replace factory wire with 1\/0 AWG or 4\/0 AWG - completes the ground loop ensuring all electrical components share common reference voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge Recommendation:\u003c\/strong\u003e Use 4\/0 AWG for all three upgrades in 8000W systems - the incremental cost over 1\/0 AWG is modest compared to the voltage drop reduction and current capacity increase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e⚡ Power Wiring Architecture: Triple 0-Gauge Configuration Strategies\u003c\/h3\u003e\n\u003cp\u003eThe Phil's triple 0-gauge power and ground terminals are engineered to distribute 700 amperes across three separate conductors, reducing current density in any single wire from an unsafe 700A to a manageable 230-235A per wire. This distributed architecture is essential—a single 0-gauge wire rated for 300-350A maximum capacity cannot safely handle 700A continuous current without severe overheating and voltage drop from excessive resistance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower wiring configurations for Phil 8000W:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration A: Triple 0-Gauge Parallel (Recommended for Competition)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eThree separate 0-gauge power wires from battery distribution block to Phil (each carries ~233A)\u003c\/li\u003e\n\u003cli\u003eThree separate 0-gauge ground wires from Phil to chassis ground point (distributed current return)\u003c\/li\u003e\n\u003cli\u003eTotal wire capacity: 900-1050A (three wires × 300-350A each) with substantial 30-50% headroom over 700A requirement\u003c\/li\u003e\n\u003cli\u003eAdvantage: Lowest resistance, minimal voltage drop (\u0026lt;0.2V), optimal for national-level competition SPL\u003c\/li\u003e\n\u003cli\u003eDisadvantage: Highest installation complexity and wire cost (six total wire runs: 3 power + 3 ground)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration B: Dual 0-Gauge + Single 1\/0 AWG Parallel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eTwo 0-gauge power wires + one 1\/0 AWG power wire from battery to Phil (distributed 700A load)\u003c\/li\u003e\n\u003cli\u003eTwo 0-gauge ground wires + one 1\/0 AWG ground wire from Phil to chassis ground\u003c\/li\u003e\n\u003cli\u003eTotal wire capacity: 900-1050A (adequate headroom over 700A requirement)\u003c\/li\u003e\n\u003cli\u003eAdvantage: Slightly reduced installation complexity versus triple 0-gauge while maintaining adequate current capacity\u003c\/li\u003e\n\u003cli\u003eDisadvantage: Uneven current distribution (0-gauge carries more current than 1\/0 AWG due to resistance differences)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration C: Single 4\/0 AWG (Not Recommended)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eOne 4\/0 AWG power wire (larger than 0-gauge, rated 500-600A depending on length) from battery to Phil\u003c\/li\u003e\n\u003cli\u003eOne 4\/0 AWG ground wire from Phil to chassis ground\u003c\/li\u003e\n\u003cli\u003eTotal wire capacity: 500-600A depending on run length and ampacity rating\u003c\/li\u003e\n\u003cli\u003eAdvantage: Simplest installation (single wire run per polarity)\u003c\/li\u003e\n\u003cli\u003eDisadvantage: Marginal or inadequate capacity for 700A requirement, only suitable for extremely short runs (\u0026lt;3 feet), significant voltage drop risk, NOT RECOMMENDED for competition or sustained high-output applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"info-box\"\u003e\n\u003ch3\u003e🎯 Audio Intensity Recommendation: Configuration A (Triple 0-Gauge) Mandatory\u003c\/h3\u003e\n\u003cp\u003eFor the Phil 8000W, we strongly recommend Configuration A (triple 0-gauge power and ground) as the only truly adequate wiring solution for 700-ampere current demands. While Configuration B (dual 0-gauge + 1\/0 AWG) technically provides sufficient current capacity, the uneven current distribution and complexity of mixing wire gauges offers no meaningful advantage over triple 0-gauge. Configuration C (single 4\/0 AWG) is categorically inadequate for 700A sustained current—do not compromise on power wiring when investing in an 8000W amplifier and 700-800A electrical system infrastructure. The cost difference between dual-wire and triple-wire configurations is approximately $150-250 in wire—trivial compared to your investment in the Phil amplifier ($1,699) and electrical system upgrades ($2,000-4,000 for alternator, batteries, and installation). Wire properly the first time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e🔒 Fusing Strategy for 700-Ampere Protection\u003c\/h3\u003e\n\u003cp\u003eThe 700-ampere external fusing requirement protects your power wiring from overcurrent conditions that could cause wire insulation melting, electrical fires, or vehicle damage. Proper fusing is critical safety infrastructure—too small and fuses blow during normal operation; too large and wiring can overheat catastrophically before fuses protect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFusing configurations for 700A total protection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple 250A ANL Fuses:\u003c\/strong\u003e One 250A ANL fuse per 0-gauge power wire (750A total rating) - provides individual wire protection and matches triple-wire Configuration A. Most cost-effective option.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 350A MEGA Fuses:\u003c\/strong\u003e Two 350A MEGA fuses (700A total rating) - suitable if using dual-wire power configuration, though not recommended for Phil 8000W as discussed above\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle 700A MEGA Fuse:\u003c\/strong\u003e One high-current MEGA fuse rated 700A - only suitable if using single 4\/0 AWG wire (which we do NOT recommend for 700A sustained current)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Location:\u003c\/strong\u003e Install fuses within 18 inches of battery positive terminal to protect entire power wire run from battery to amplifier. For triple-wire configurations, use distribution block with three fused outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📏 Wire Gauge Reference for Phil 8000W (700A Current)\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWire Gauge\u003c\/th\u003e\n\u003cth\u003eCurrent Capacity (Continuous)\u003c\/th\u003e\n\u003cth\u003eApplication for Phil 8000W (700A Total)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/0 Gauge AWG\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~300-350A per wire\u003c\/td\u003e\n\u003ctd\u003e✅ REQUIRED - Use three wires (900-1050A total capacity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e4\/0 Gauge AWG\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~500-600A per wire\u003c\/td\u003e\n\u003ctd\u003e⚠️ MARGINAL - Single wire inadequate for 700A, minimal headroom, NOT RECOMMENDED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTriple 1\/0 Gauge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~900-1050A combined\u003c\/td\u003e\n\u003ctd\u003e✅ RECOMMENDED - Adequate capacity with 30-50% headroom over 700A requirement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDual 1\/0 Gauge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~600-700A combined\u003c\/td\u003e\n\u003ctd\u003e❌ INADEQUATE - Minimal or zero headroom, unacceptable for competition applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 class=\"section-title\"\u003e🎛️ Competition-Grade Tuning Controls \u0026amp; Diagnostic Features\u003c\/h2\u003e\n\u003cp\u003eThe Phil 8000W provides comprehensive tuning controls specifically engineered for competition SPL optimization where fractional adjustments in crossover frequency, phase angle, or subsonic filtering can mean the difference between 169.9dB and 170.1dB output—and the difference between fourth place and first place at national competitions.\u003c\/p\u003e\n\u003ch3\u003e🔊 Variable Low-Pass Crossover: 35Hz-250Hz Competition Optimization\u003c\/h3\u003e\n\u003cp\u003eThe 24dB\/octave low-pass crossover with 35-250Hz range enables precise frequency band selection for competition SPL where most organizations measure output at specific frequencies (typically 35Hz, 40Hz, 45Hz, 50Hz, or 63Hz depending on class). The steep 24dB\/octave slope provides aggressive filtering that concentrates amplifier power into the target frequency range while eliminating wasted power on frequencies outside the measurement bandwidth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompetition crossover strategies:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e35-40Hz Competition Class:\u003c\/strong\u003e Set crossover to 50-60Hz - allows fundamental frequency plus harmonics through while filtering above competition measurement range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e45-50Hz Competition Class:\u003c\/strong\u003e Set crossover to 65-80Hz - broader bandwidth for enclosures with wider tuning or multiple resonance peaks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e63Hz Competition Class:\u003c\/strong\u003e Set crossover to 100-120Hz - accommodates higher frequency competition classes and enables use of smaller subwoofers optimized for midbass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurp Competition (Broadband):\u003c\/strong\u003e Set crossover to 120-150Hz - maximizes total acoustic energy across wide bandwidth for highest peak SPL regardless of frequency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🌊 Subsonic Filter: Protecting Investment at Extreme Power Levels\u003c\/h3\u003e\n\u003cp\u003eAt 8000 watts of amplifier power driving high-excursion competition subwoofers, the subsonic filter becomes critical safety infrastructure preventing catastrophic mechanical failure from over-excursion below the enclosure's effective frequency range. A misconfigured subsonic filter at 8000W power levels can destroy a $2,000+ subwoofer array in seconds during competition runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubsonic filter configuration for competition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorted Enclosures:\u003c\/strong\u003e Set subsonic filter at port tuning frequency or 2-5Hz below - critical for preventing over-excursion below tuning where impedance rises and driver becomes unloaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetition SPL Target 40Hz:\u003c\/strong\u003e If enclosure tuned to 40Hz, set subsonic to 38-40Hz to protect against sub-tuning excursion while preserving competition frequency output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed Enclosures:\u003c\/strong\u003e Set subsonic filter at driver resonance frequency (Fs) or 5-10Hz below - less critical than ported but still prevents wasted excursion on infrasonic content\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety-First Philosophy:\u003c\/strong\u003e When uncertain, set subsonic filter slightly higher (more conservative) - minor loss of deepest bass is preferable to destroyed subwoofers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e⚠️ Clipping LED Indicator: Real-Time Protection Against Distortion Damage\u003c\/h3\u003e\n\u003cp\u003eThe Phil's clipping LED indicator is not a novelty feature—it's a critical diagnostic tool that provides real-time warning when the amplifier reaches maximum clean output and begins distorting the audio signal. At 8000 watts driving expensive competition subwoofers, the clipping LED's warning can prevent thermal voice coil failure that destroys thousands of dollars of equipment in minutes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy clipping is catastrophic at 8000 watts:\u003c\/strong\u003e When the Phil clips, it converts smooth sine-wave bass signals into square waves with significant high-frequency harmonic content. This high-frequency energy—which subwoofer voice coils are not designed to handle—drives continuous DC-like current into voice coils without the normal \"breathing room\" of musical waveforms. At 8000W power levels, this thermal abuse can exceed voice coil temperature limits (typically 300-350°F for adhesive failure) within 30-60 seconds, resulting in voice coil separation from former, coil deformation, or complete burn-out requiring driver replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsing the clipping LED in competition tuning:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain Setting:\u003c\/strong\u003e Increase input gain while playing test tones until clipping LED illuminates, then reduce gain 10-15% for headroom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetition Runs:\u003c\/strong\u003e Brief clipping LED flashes during peak SPL hits are acceptable and indicate maximum power utilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Listening:\u003c\/strong\u003e Continuous clipping LED illumination indicates excessive input signal or insufficient amplifier power for listening level - reduce volume or upgrade power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Damage Prevention:\u003c\/strong\u003e If clipping LED remains illuminated continuously, immediately reduce volume to prevent subwoofer thermal damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"section-title\"\u003e🏆 Competition Applications: When You Absolutely Must Dominate\u003c\/h2\u003e\n\u003cp\u003eThe Phil 8000W exists for one primary purpose: competition SPL dominance. While it can certainly serve in extreme daily-driver systems, its 8000W power level, 700A electrical requirements, and 32.75\" length make it impractical for casual bass enthusiasts. Understanding typical competition applications helps determine whether the Phil matches your competitive objectives and system scale.\u003c\/p\u003e\n\u003ch3\u003e🥇 National-Level SPL Competition Systems (170+ Decibels)\u003c\/h3\u003e\n\u003cp\u003eAt the highest levels of SPL competition—where top competitors regularly exceed 170 decibels and podium positions are decided by 0.1-0.2dB margins—the Phil's 8000W power represents minimum requirement rather than excessive overkill. These systems are engineering showcases pushing the boundaries of acoustics, electrical engineering, and material science.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical national-level configuration with Phil 8000W:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubwoofers:\u003c\/strong\u003e Four to eight 15\" or 18\" competition-grade subwoofers (Digital Designs 9500\/Z series, Sundown Audio Zv6\/Xv3, DC Audio Level 6) with 2000W+ RMS handling each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Custom ported wall (8-15 cubic feet total volume) with multiple large ports or slot port, tuned precisely to competition frequency (typically 38-42Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical System:\u003c\/strong\u003e 700-800A high-output alternator, 300-500Ah lithium or AGM battery bank, triple 0-gauge power wiring with 700A fusing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Preparation:\u003c\/strong\u003e Extensive acoustic sealing (windows, doors, firewall), deadening material (100+ pounds typical), structural reinforcement to prevent flex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected SPL:\u003c\/strong\u003e 170-178+ dB @ 40Hz depending on vehicle size, subwoofer selection, and acoustic optimization\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🚗 Regional SPL Competition (165-170 Decibels)\u003c\/h3\u003e\n\u003cp\u003eRegional SPL competitors pursuing podium placement at state and regional events without the extreme budgets of national-level teams still benefit from the Phil's 8000W power for decisive advantage over 5000-6000W systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical regional competition configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubwoofers:\u003c\/strong\u003e Four 12\" or 15\" competition subwoofers (Sundown Audio X\/Zv5, DC Audio Level 4\/5, Digital Designs 3500\/5500 series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Ported enclosure (6-10 cubic feet) tuned to competition frequency with optimized port area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical System:\u003c\/strong\u003e 700A high-output alternator, dual battery setup (200-300Ah total), triple 0-gauge wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected SPL:\u003c\/strong\u003e 165-170 dB @ 40-45Hz with potential for podium placement in regional competitions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e💥 Multi-Subwoofer Arrays: Efficiency Through Quantity\u003c\/h3\u003e\n\u003cp\u003eSome competition systems utilize large arrays of smaller subwoofers (six to ten 10\" or 12\" drivers) rather than fewer large drivers, leveraging increased total cone area and efficiency to achieve extreme SPL with the Phil's 8000 watts distributed across multiple drivers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMulti-subwoofer array configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration A:\u003c\/strong\u003e Eight 10\" subwoofers (1000W RMS each) = 8000W total power handling, wired for 1-ohm final impedance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration B:\u003c\/strong\u003e Six 12\" subwoofers (1200-1500W RMS each) = 7200-9000W total power handling, wired for 1-ohm or 2-ohm final impedance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Custom multi-chamber enclosure with individual chambers per subwoofer or common ported enclosure with extensive port area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvantage:\u003c\/strong\u003e Increased total cone area improves efficiency (more SPL per watt), distributes thermal load across multiple voice coils (reduced thermal failure risk), enables creative wiring configurations for optimal impedance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🎬 Extreme Mobile Entertainment Systems\u003c\/h3\u003e\n\u003cp\u003eWhile not the primary market, some mobile entertainment enthusiasts building cinema-quality systems in large vans, SUVs, or RVs utilize the Phil's 8000W for extreme low-frequency extension and reference-level output capable of reproducing film soundtracks at theatrical volumes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMobile cinema configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubwoofers:\u003c\/strong\u003e Two to four large-format subwoofers (18\" or 21\") optimized for low-frequency extension and high efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Large sealed or ported enclosure (8-12 cubic feet per driver) tuned for flat response extending to 20Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrossover Setting:\u003c\/strong\u003e 80Hz or 100Hz to match THX home theater standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected Performance:\u003c\/strong\u003e Reference-level bass peaks (105-115 dB) with extension to 20Hz for film effects, sufficient headroom for explosive soundtracks without distortion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"section-title\"\u003e📦 Product Condition, Warranty \u0026amp; What's Included\u003c\/h2\u003e\n\u003cdiv class=\"highlight-box\"\u003e\n\u003ch3\u003e✨ Brand New Flagship Closeout Opportunity\u003c\/h3\u003e\n\u003cp\u003eThis US Acoustics Phil 8000W monoblock amplifier is \u003cstrong\u003ebrand new, never installed, unopened in original factory packaging with factory seal intact\u003c\/strong\u003e. This is not refurbished, not B-stock with cosmetic defects, not open-box return, and not display model—this is new-in-box flagship inventory from manufacturer closeout. The amplifier includes full 1-year manufacturer warranty coverage and all original accessories exactly as it would if purchased at original $1,999+ retail pricing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e📋 Understanding Closeout Pricing on Flagship Products\u003c\/h3\u003e\n\u003cp\u003eFlagship product closeouts are rare opportunities. Unlike mid-tier amplifiers that cycle through regular model updates, flagship products like the Phil 8000W represent peak engineering capability that manufacturers maintain in production for extended periods. When closeouts occur on flagship models, it's typically due to manufacturer business restructuring, inventory reduction ahead of company transitions, or strategic decisions to focus on different product categories—not quality issues or product deficiencies.\u003c\/p\u003e\n\u003cp\u003eThis closeout represents an exceptional opportunity to acquire ultimate-tier 8000W power at pricing approaching mid-tier 5000-6000W amplifiers from competing brands. The Phil is brand new with full warranty—you're receiving the same product quality and manufacturer support as full-price inventory, simply at closeout pricing that reflects inventory liquidation rather than ongoing retail markup.\u003c\/p\u003e\n\u003ch3\u003e📦 Package Contents\u003c\/h3\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eUS Acoustics Phil 8000W Monoblock Amplifier\u003c\/strong\u003e - factory sealed, never installed, original packaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote Control\u003c\/strong\u003e - includes remote knob and connection cable for dashboard mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware\u003c\/strong\u003e - screws and mounting accessories for secure installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Terminal Covers\u003c\/strong\u003e - protective covers for terminal area (if applicable to model)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser Manual\u003c\/strong\u003e - comprehensive installation instructions, specifications, tuning guidance, warranty information\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Registration Card\u003c\/strong\u003e - register for 1-year limited manufacturer warranty coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🛡️ Warranty Coverage: 1-Year Limited Manufacturer Warranty\u003c\/h3\u003e\n\u003cp\u003eThe Phil includes US Acoustics' \u003cstrong\u003e1-year limited manufacturer warranty\u003c\/strong\u003e covering defects in materials and workmanship—standard for extreme-power amplifiers in the 7000-10,000 watt category. The shorter warranty period (versus 2-3 years on lower-power models) reflects industry recognition that extreme-power amplifiers are predominantly used in competition or high-stress applications where electrical system quality, installation precision, and operating conditions vary dramatically and directly impact long-term reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty coverage includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eParts and labor for manufacturing defects (component failures, circuit board issues, terminal failures unrelated to installation errors)\u003c\/li\u003e\n\u003cli\u003eRepair or replacement at manufacturer's discretion based on failure analysis\u003c\/li\u003e\n\u003cli\u003eCoverage period begins from date of purchase (retain purchase receipt as proof of coverage)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty does NOT cover (standard exclusions):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003eDamage from improper installation (incorrect wiring polarity, inadequate fusing, poor grounding, wire gauge undersizing)\u003c\/li\u003e\n\u003cli\u003eDamage from operating below rated stable impedance (loading below 1-ohm specification)\u003c\/li\u003e\n\u003cli\u003eDamage from inadequate electrical system infrastructure (voltage sag, insufficient alternator capacity, inadequate battery bank)\u003c\/li\u003e\n\u003cli\u003eCosmetic damage, scratches, wear, or corrosion from environmental exposure\u003c\/li\u003e\n\u003cli\u003eDamage from water intrusion, extreme heat beyond specification, or physical impact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"info-box\"\u003e\n\u003ch3\u003e🤝 Audio Intensity Professional Installation Support\u003c\/h3\u003e\n\u003cp\u003eAt Audio Intensity, we recognize that purchasing an 8000-watt amplifier with 700-ampere electrical requirements represents not just significant financial investment ($1,699 for amplifier + $2,500-4,000 for electrical system infrastructure), but technical challenge requiring professional-level knowledge of electrical engineering, acoustic optimization, and competition-grade installation techniques. We don't merely sell flagship amplifiers—we provide comprehensive installation support ensuring your Phil system is engineered correctly from day one. Every Phil purchase includes access to our technical team for guidance on alternator selection (700-800A specifications), battery bank design (AGM vs lithium, capacity requirements), power wire routing (triple 0-gauge configuration strategies), fusing implementation, gain structure optimization, and competition tuning. The Phil is brand new with full warranty, and we're committed to helping you build the electrical and acoustic infrastructure required to unleash its full 8000-watt potential reliably and safely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e❌ Not Included - Purchase Separately (Competition-Grade Infrastructure)\u003c\/h3\u003e\n\u003cul class=\"checkmark-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Wire:\u003c\/strong\u003e Triple 0-gauge power wire (60-100 feet total: 20-30 feet per wire × 3 wires, depending on vehicle size and battery location)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Wire:\u003c\/strong\u003e Triple 0-gauge ground wire (9-30 feet total: 3-10 feet per wire × 3 wires, depending on mounting location and ground point proximity)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFusing \u0026amp; Distribution:\u003c\/strong\u003e 700A total fusing (three 250A ANL fuses recommended), fuse holders, distribution block with three fused outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Cables:\u003c\/strong\u003e Premium shielded RCA interconnects (15-25 feet depending on vehicle) from head unit\/DSP to amplifier location\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Wire:\u003c\/strong\u003e 4-gauge speaker wire minimum (2-gauge recommended) from amplifier to subwoofer array\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Hardware:\u003c\/strong\u003e Tinned copper terminal lugs for power, ground, and speaker wire terminations (six power\/ground lugs for triple-wire configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Board:\u003c\/strong\u003e Heavy-duty plywood or MDF mounting board (3\/4\" minimum thickness, 34\" × 10\" minimum dimensions) if not installing directly to vehicle structure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical System Components:\u003c\/strong\u003e 700-800A high-output alternator, battery bank (2-4 batteries), Big Three upgrade wire (1\/0 or 4\/0 AWG)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAudio Intensity stocks complete competition-grade installation kits specifically engineered for 8000W applications. Our flagship installation kits include triple 0-gauge power and ground wire, 700A fusing with distribution blocks, premium RCA cables, speaker wire, terminal hardware, and technical documentation—everything required except the amplifier and electrical system major components (alternator, batteries). Inquire about our Phil 8000W installation packages when purchasing to ensure you have competition-grade infrastructure matching your amplifier's capabilities.\u003c\/p\u003e\n\u003ch2 class=\"section-title\"\u003e💡 Why Choose Audio Intensity for Your Phil 8000W Investment\u003c\/h2\u003e\n\u003cp\u003ePurchasing an 8000-watt flagship monoblock amplifier transcends typical retail transactions—it represents commitment to competition-level performance requiring specialized knowledge, professional-grade components, and technical support that separates enthusiast retailers from true specialists. Audio Intensity focuses exclusively on high-performance car audio with particular expertise in extreme-power competition systems, electrical infrastructure engineering, and the acoustic optimization that enables 165-175+ decibel SPL output. When you purchase your Phil from Audio Intensity, you're partnering with specialists who understand the comprehensive system engineering required to actually utilize 8000 watts effectively—not just sales representatives reading specification sheets.\u003c\/p\u003e\n\u003ch3\u003e🎯 Competition System Expertise: We Build What We Sell\u003c\/h3\u003e\n\u003cp\u003eOur team includes active SPL competitors and former competitors who've built, tuned, and competed with 7000-10,000 watt systems at regional and national events. We don't theorize about 700-ampere electrical systems—we've engineered them, troubleshot them, and optimized them under actual competition conditions. This practical experience informs every recommendation we make regarding alternator selection, battery bank configuration, power wire routing, fusing strategy, and acoustic tuning. When you call with questions about why your voltage sags below 13V at full output or why your fuses blow during peak hits, you're speaking with specialists who've diagnosed and solved these exact issues in real competition vehicles.\u003c\/p\u003e\n\u003ch3\u003e🛠️ Comprehensive System Integration Support\u003c\/h3\u003e\n\u003cp\u003eThe Phil 8000W is merely one component in a comprehensive competition system requiring careful integration of electrical infrastructure, subwoofers, enclosures, signal processing, and acoustic treatment. Audio Intensity provides end-to-end guidance covering every aspect: Which 700-800A alternator models actually deliver rated current at idle speed? How do you route triple 0-gauge wires through firewall grommets? Should you use AGM or lithium batteries for your competition class? How do you wire six 12\" subwoofers with dual 2-ohm voice coils to achieve 1-ohm final impedance? What crossover frequency and subsonic filter settings optimize 40Hz SPL output? We answer these questions and thousands more because system integration determines whether your 8000-watt investment achieves 172 decibels or suffers voltage sag, thermal limiting, or component failure.\u003c\/p\u003e\n\u003ch3\u003e📦 Competition-Grade Component Ecosystem\u003c\/h3\u003e\n\u003cp\u003eBuilding an 8000-watt system requires more than an amplifier—it demands subwoofers rated for 1500-2000W RMS each, enclosures engineered for competition frequency optimization, 700-800A alternators, extensive battery banks, triple 0-gauge wire kits, high-current distribution blocks, and installation hardware that won't become bottlenecks. Audio Intensity stocks the complete ecosystem: competition subwoofers (Digital Designs 9500 series, Sundown Audio Zv6, DC Audio Level 6), custom enclosure design services, extreme-power electrical components, and professional installation accessories. We supply every component your Phil system requires from a single source, ensuring compatibility and eliminating the risk of mismatched components that compromise system performance.\u003c\/p\u003e\n\u003ch3\u003e💰 Transparent Closeout Pricing \u0026amp; Limited Availability\u003c\/h3\u003e\n\u003cp\u003eThis Phil is priced as manufacturer closeout because that's precisely what it represents—discontinued flagship inventory, not defective product, not cosmetically imperfect B-stock, not problematic open-box returns. We maintain transparency about product condition, warranty coverage, and inventory availability. The closeout pricing reflects genuine manufacturer inventory liquidation, not artificially inflated \"original prices\" designed to make discounts appear larger. What you see is what you receive: brand new flagship amplifier, full 1-year warranty, exceptional value, extremely limited availability. When closeout inventory depletes, the Phil 8000W is no longer available at any price.\u003c\/p\u003e\n\u003ch3\u003e🤝 Our Commitment to Competition Success\u003c\/h3\u003e\n\u003cp\u003eOur objective transcends selling amplifiers—we're committed to your competition success. Whether you're building your first national-level competition system or upgrading from 6000W to pursue that final 1-2dB advantage for podium placement, we're here to help you navigate the complex decisions, avoid the expensive mistakes, and engineer the electrical and acoustic infrastructure that enables the Phil to deliver its full 8000-watt potential. The Phil represents the ultimate expression of US Acoustics' engineering capability—our role is ensuring you have the knowledge, components, and support required to translate that 8000-watt capability into measurable competition advantage.\u003c\/p\u003e\n\u003cdiv class=\"footer-section\"\u003e\n\u003ch2\u003e🏆 Unleash 8000 Watts of Competition Domination\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.1em; margin: 15px 0;\"\u003eThe US Acoustics Phil 8000W Monoblock Amplifier represents the absolute pinnacle of extreme bass amplification—8000 watts RMS at 1-ohm, revolutionary triple 0-gauge terminal architecture, \u0026gt;95% efficiency, competition-proven clipping LED protection, and professional tuning controls. This is brand new flagship closeout inventory offering ultimate-tier competition power at exceptional pricing.\u003c\/p\u003e\n\u003cp style=\"font-size: 1.2em; margin: 20px 0;\"\u003e\u003cstrong\u003eExtremely limited availability on flagship closeout inventory—contact Audio Intensity today to secure your Phil 8000W and build the competition system that dominates your class.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95em; margin-top: 25px; opacity: 0.9;\"\u003e📞 Contact Audio Intensity | 🌐 Competition System Specialists | 💬 Professional Installation \u0026amp; Tuning Guidance\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em; margin-top: 15px; opacity: 0.85;\"\u003e\u003cem\u003eAudio Intensity - Specialists in Competition SPL Systems \u0026amp; Extreme Power Engineering\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42819892904025,"sku":null,"price":1249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-phil-8000w-monoblock-amplifieramplifierus-acoustics-9838321.jpg?v=1762580608"},{"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":"us-acoustics-mike-1500w-monoblock-amplifier","title":"US Acoustics Mike 1500w Monoblock Amplifier","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 Mono Class D Series\u003c\/p\u003e\n    \u003ch2\u003eUS Acoustics Mike 1500W Monoblock Amplifier\u003c\/h2\u003e\n    \u003cp\u003eEverybody likes Mike. 1500 watts RMS at 1 ohm of clean, controlled Class D bass with a full control set and an electrical footprint you can actually live with.\u003c\/p\u003e\n    \u003cdiv class=\"usa-badges\"\u003e\n      \u003cspan class=\"usa-badge\"\u003e375W @ 4 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e750W @ 2 Ohms\u003c\/span\u003e\n      \u003cspan class=\"usa-badge\"\u003e1500W @ 1 Ohm\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 Sensible 1500-Watt Subwoofer Amplifier\u003c\/h3\u003e\n  \u003cp\u003eThe US Acoustics Mike is a 1-ohm stable Class D monoblock rated at 375 watts RMS into 4 ohms, 750 watts RMS into 2 ohms, and 1500 watts RMS into 1 ohm, all at 14.4 volts. It is the entry point to the US Acoustics mono Class D line, and it is built to be the amplifier most systems actually need: enough power for a single subwoofer or a matched pair, with the control to make that bass clean rather than just loud.\u003c\/p\u003e\n  \u003cp\u003eMike keeps the numbers honest where it counts. Total harmonic distortion stays below 0.1 percent, signal-to-noise sits above 101 dB, and the damping factor is greater than 250 at 100 Hz into 4 ohms. That combination of low distortion and strong cone control is why this amp earns its name: it is easy to like and easy to live with.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-statgrid\"\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e1500W\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eRMS @ 1 Ohm\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"usa-stat\"\u003e\n\u003cspan class=\"usa-statnum\"\u003e\u0026lt;0.1%\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;101 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;250\u003c\/span\u003e\u003cspan class=\"usa-statlabel\"\u003eDamping Factor\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eThe Controls You Actually Use\u003c\/h3\u003e\n  \u003ch4\u003eButterworth Low-Pass, 10 to 150 Hz\u003c\/h4\u003e\n  \u003cp\u003eThe 24 dB per octave low-pass filter sweeps from 10 to 150 Hz, a steep, clean handoff that keeps the subwoofer focused on bass and nothing above it.\u003c\/p\u003e\n  \u003ch4\u003eSubsonic Filter, 15 to 55 Hz\u003c\/h4\u003e\n  \u003cp\u003eThe adjustable subsonic filter protects subwoofers in ported enclosures from over-excursion below tuning frequency. Set it just under box tuning and your woofers stay safe when the music drops below where the box stops working for them.\u003c\/p\u003e\n  \u003ch4\u003eBass Boost and Wired Remote\u003c\/h4\u003e\n  \u003cp\u003eVariable bass boost from 0 to +12 dB at 50 Hz, with the wired remote included so you can ride the bass level from the driver's seat track by track.\u003c\/p\u003e\n\n  \u003ch3\u003eClass D Efficiency, Manageable Wiring\u003c\/h3\u003e\n  \u003cp\u003eUltra efficient Class D design means Mike draws less current and makes less heat than a Class AB amplifier of similar output, and the onboard 4 x 40A fusing reflects a current demand most vehicles can support without an exotic electrical build. A thermally stable heat sink and extreme bulk capacitor banks hold output steady through hard, repeated bass. At 14.1 inches long it fits far more installs than the big-power monos.\u003c\/p\u003e\n\n  \u003cdiv class=\"usa-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eMatch it to the right enclosure:\u003c\/strong\u003e Mike pairs naturally with a single subwoofer or a matched pair wired to 1 or 2 ohms. Our Proline X enclosures are CNC-cut in Tullahoma, Tennessee and matched to specific subwoofers, and ported builds benefit directly from Mike's adjustable subsonic filter. Tell us your subwoofer and we will spec the box.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eBuilt to the US Acoustics Standard\u003c\/h3\u003e\n  \u003cp\u003eExtra large gauge terminals accept proper power wire, Docking Pads reduce vibration transfer to extend amplifier life, and full protection circuitry covers DC, short circuit, thermal, and overload conditions with diagnostic LEDs. Every Mike 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 Mike fast from Tullahoma, Tennessee, with real installer support before and after the sale. Tell us your subwoofer and vehicle and we will tell you honestly whether Mike is the right power level and how to wire it for daily reliability.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"US Acoustics","offers":[{"title":"Default Title","offer_id":42876707438681,"sku":null,"price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/us-acoustics-mike-1500w-monoblock-amplifieramplifierus-acoustics-8876126.jpg?v=1764434219"}],"url":"https:\/\/audiointensity.com\/collections\/us-acoustics-amplifiers.oembed?page=2","provider":"Audio Intensity","version":"1.0","type":"link"}