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JBL Grand Touring Series GTO301.1 II Mono subwoofer amplifier 294 watts RMS x 1 at 2 ohms at Crutchfield
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Mono subwoofer Amplifier with Passive 12" GT Series Loaded Ported Bandpass Subwoofer Enclosure and 8 Gauge Wiring Kit - Walmart.com
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JBL GT5-A604 GT Series Full Range Car Subwoofer Amplifier - 4-Channel, 640 Watts Total, On-board Variable Electronic Crossover at TigerDirect.com
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