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Hertz SX 300D SPL Show Series 12" dual 2-ohm voice coil component subwoofer — designed for SPL competition at Crutchfield
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Amazon.com: Hertz SX300D 12-Inch 800 Watts RMS Dual 2 Ohm Competition Subwoofer 3200W Max : Electronics
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Two Hertz SX300D "SPL SHOW" 12 inch 800 Watt RMS Subwoofers with Dual "Aluminum" Voice coils Photo #1276081 - US Audio Mart
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