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Amazon.com: Rockford Fosgate Prime R500X1D Mono subwoofer Amplifier with P3-1X12 12" Punch P3 subwoofers and 4 Gauge Amplifier Power Wiring Kit and RCA Wire Bundle : Electronics
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Rockford Fosgate R500X1D 500W Monoblock Amplifier w/ Free 4 Gauge Amp Kit Bundle 818060016721 | eBay
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