Old-school car audio amplification with a 25-year track record. Class AB Ladies for SQ-focused builds and Class D Brawlers for serious SPL output.
Authorized Dealer
Direct dealer relationship with full manufacturer warranty and the latest product updates.
Hands-On Expertise
Direct support from staff who designs, builds, and competes with these systems. Real recommendations, not sales scripts.
Fast Shipping
In-stock orders ship within 1-2 business days from our Tullahoma, Tennessee warehouse.
Decision Shortcut
Curated picks matched to common build goals
Best Entry Lady
US Acoustics
Class AB 2x75W at $159.99. The accessible entry into the Ladies series for front-stage stereo amplification.
$ 159.99
View DetailsBest 4-Channel Lady
US Acoustics
Class AB 4x100W at $399.99. The mid-tier 4-channel for front-plus-rear builds.
$ 399.99
View DetailsBest 6-Channel Lady
US Acoustics
US Acoustics Lanna → "Class AB 6x150W at $695. Active 3-way front-stage amplification at an accessible price tier.
$ 695.00
View DetailsBest Entry Brawler
US Acoustics
Class D 1500W monoblock at $329.99. The accessible Brawler for daily-driver sub builds.
$ 329.99
View DetailsBest SPL Brawler
US Acoustics
Class D 3500W monoblock at $599.99 on sale from $899.99. Daily-driver SPL crossover power.
$ 599.99 $ 899.99
View DetailsBest Flagship Brawler
US Acoustics
Class D 8000W monoblock at $1,249.99 on sale from $1,699.99. Serious SPL competition power.
$ 1,249.99 $ 1,699.99
View Details
All products loaded
The US Acoustics catalog is organized by channel count and topology. Click into a sub-collection to browse all SKUs in that segment.
US Acoustics 2-Channel Amplifiers: The Class AB Ladies for front-stage stereo amplification. Wendy (2x75W at $159.99) and Andrea (2x150W at $289.99) cover entry to mid-tier 2-channel duties.
US Acoustics 4-Channel Amplifiers: Lisa (4x50W at $159.99) and Barbara Ann (4x100W at $399.99) handle front-plus-rear or active 2-way builds in Class AB topology.
US Acoustics 6-Channel Amplifier: Lanna (6x150W Class AB at $695). The 6-channel for active 3-way front-stage builds at an accessible price point.
US Acoustics Mono Class D Amplifiers: The Brawlers monoblock series for subwoofer duty. Mike (1500W at $329.99), Nick (2500W at $599.99), Big Ben (3500W at $599.99), Tony (6000W at $999.99), and Phil (8000W at $1,249.99).
US Acoustics Compact Class D Amplifiers: Compact-chassis Class D options for space-constrained installs.
US Acoustics organizes its lineup around a distinctive naming convention that reflects the underlying engineering philosophy of each series.
The Class AB "Ladies" (Wendy, Andrea, Lisa, Barbara Ann, Lanna) are the multi-channel speaker amplifiers. Class AB topology delivers the smoother high-frequency reproduction and continuous bias current that SQ-focused builds reward. Lower per-channel power than the Brawlers, but precise and clean across the full frequency range. The Ladies are matched to component speakers, coaxials, and active multi-driver setups where amplifier topology matters as much as raw power.
The Class D "Brawlers" (Mike, Nick, Big Ben, Tony, Phil) are the monoblock subwoofer amplifiers. Class D efficiency delivers the high-current output subwoofers demand without overloading the vehicle's electrical system or requiring massive heat sinks. From the 1500W Mike for daily-driver sub builds to the 8000W Phil for serious SPL competition, the Brawlers handle subwoofer duty across every output tier.
The split is architecturally correct. Class AB on the front-stage speakers, Class D on the subwoofer. US Acoustics is one of the few brands where the catalog naming itself communicates which amp goes where.
US Acoustics fills a specific gap in the car audio amplifier market: a brand with real history, honest power ratings, accessible pricing, and a clean topology-to-application mapping. The Ladies and Brawlers naming makes amplifier selection easier for buyers who don't want to navigate a confusing model number system or wade through inflated peak-power specs.
The brand's roots in early-1990s car audio give it a "foundation brand" status with longtime enthusiasts (one of the brands competitors mention as gear they "grew up with"). The return to market gave it modernized internals (Class D for the Brawlers, refined Class AB for the Ladies) while keeping the honest output ratings and dependable build quality that earned the original reputation.
For daily-driver upgrades, SQ-focused full-system builds, and SPL-focused subwoofer applications, US Acoustics covers the practical-tier market well at a price point that competes directly with budget brands but with significantly better engineering and honest specs.
The Ladies (Wendy, Andrea, Lisa, Barbara Ann, Lanna) are Class AB multi-channel amplifiers for full-range speaker amplification. The Brawlers (Mike, Nick, Big Ben, Tony, Phil) are Class D monoblock amplifiers for subwoofer duty. The naming convention reflects the topology-to-application mapping: Class AB topology suits the smoother high-frequency reproduction needed for speakers; Class D suits the high-current, low-impedance demands of subwoofer amplification.
Match the per-channel power to your speakers' RMS rating. For most aftermarket components rated 50-100W RMS, Wendy (2x75W) or Andrea (2x150W) handles a front pair well, or Lisa (4x50W) and Barbara Ann (4x100W) handle a front-plus-rear build. For higher-power components (150W+ RMS) and active 3-way builds, Lanna (6x150W) provides matched amplification per driver tier.
Match the monoblock's RMS output to your subwoofer's RMS rating, ideally 100 to 150% of the sub's RMS. For a single 1000W RMS sub, Mike (1500W) is well-matched. For dual 1500W RMS subs wired in parallel, Big Ben (3500W) handles them properly. For larger or competition-grade SPL builds, Tony (6000W) or Phil (8000W) covers the high-output tier.
US Acoustics is a foundation car audio brand with roots in the early 1990s. The current lineup represents a relaunch of the original brand with modernized internals (Class D Brawlers added to complement the historic Class AB Ladies series). The brand has a 25+ year track record in car audio, with current products carrying the honest power ratings and build quality that defined the original reputation.
The Big Ben is the Brawler-series monoblock at 3500W RMS output. It's rated 1 ohm stable for low-impedance wiring configurations (dual voice coil subs in parallel) and engineered for the daily-driver-to-competition-SPL crossover tier. The Big Ben works well for serious daily-driver sub builds and entry-tier SPL competition. For competition-only builds requiring higher output, Tony (6000W) and Phil (8000W) cover the upper tiers.
Yes for the Tony (6000W) and Phil (8000W). High-output Class D monoblocks at this tier draw 200+ amps under sustained operation, which exceeds factory alternator capacity. Plan a high-output alternator, supplemental battery capacity, and Big 3 wiring upgrades as part of the install budget. The Mike (1500W) and Big Ben (3500W) typically run within Big 3-upgraded factory electrical systems without requiring alternator replacement.
Yes. Every US Acoustics amplifier is brand new, sold by an authorized dealer, and carries the full manufacturer warranty. We handle warranty claims directly with the brand.
Related Collections
Browse curated picks that work with the products above.
US Acoustics
$ 159.99
US Acoustics
$ 159.99
Rainbow
$ 197.50 $ 399.99
Rainbow
$ 199.99 $ 425.00
Related Collections
Browse curated picks that work with the products above.
Related Collections
Browse curated picks that work with the products above.
US Acoustics
$ 159.99
US Acoustics
$ 159.99
US Acoustics
$ 289.99
US Acoustics
$ 399.99
Subwoofers That Pair Well
These subwoofers match the power and impedance characteristics of the amplifiers in this collection. Pick the driver, match the wiring, get a system that performs as designed.
