4 Channel 3200W Car Audio Stereo Power Amplifier Bass Powerful Sub Woofer Amp US 617256040799 | eBay
Amazon.com: BOSS Audio Systems CUBE10 Car Subwoofer and Amp Package – Built-in Amplifier, 10 Inch Subwoofer with Passive Radiator, Remote Subwoofer Control : Electronics
Mtx Tnp212d2 12" Dual Loaded 1200w Car Subwoofer Enclosure Audio With Sub Box, Mono Block Amplifier, And Amplifier Amp Complete Wiring Install Kit : Target
Kicker 47KEY500.1 Compact mono subwoofer amplifier with automatic tuning DSP — 500 watts RMS at 1 ohm at Crutchfield