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jp77With its bandpassable crossovers and upgraded RCA cables, the JP77 offers superior sound quality and a strong connection that won't fall apart. Plus, its 2000W RMS at 1 ohm justDown4Sound JP77 Titanium Amplifier | 3000 Watts RMS 7CH. If you're searching for an all-in-one car amplifier that delivers over 3000 Watts RMS of raw powe. $689.99 - $769.98. Options.