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BOSS Audio Systems R1004 Riot Series Car Audio Amplifier - 400 High Output, 4 Channel, 2/8 Ohm, High/Low Level Inputs, Full Range, Hook Up To Stereo and Subwoofer, Class A/B, IC (Integrated Circuit)
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Amazon.com: 2SC5200 2SA1943 400W + 400W Pure Post-amp High Power Amplifier Board : Musical Instruments
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