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Jensen JA1B JA Series compact mono subwoofer amplifier with digital signal processing — 595 watts RMS x 1 at 1 ohm at Crutchfield
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Fosi Audio M03 200 Watt TPA3255 Subwoofer Amplifier Mini Mono Channel Audio Power Amp for Home Theater Full-Frequency and SUB Bass Switchable with 32V/5A Power Supply - Walmart.com
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AIYIMA 1000W High Power Mono Channel Amplifier Board Professional Stage AMP Board With 5200 1943 Tubes For Sound Amplifiers DIY - AliExpress
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Fosi Audio M03 200 Watt TPA3255 Subwoofer Amplifier Mini Mono Channel Audio Power Amp for Home Theater Full-Frequency and SUB Bass Switchable with 32V/5A Power Supply - Newegg.com
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SounDigital 3000.1 EVOX2 2OHM EVOX2 3000 Series Mono Channel 2-Ohm Amplifier - Breakers Stereo and Performance
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Kicker 47KEY5001 Digital Signal Processor Smart Mono Subwoofer Amplifier Bass Revealer and Processor Vehicle Audio System (Black) | electronicsexpo.com
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Kenwood XR1001-1 Reference Fit Mono Power Amplifier with 1000W x 1 output at 2 ohms, 2000W maximum power, Bass Knob Included, Speaker level Inputs and Signal Sensing Turn On - Creative Audio
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