Amazon.com: Alphasonik HSW212 Hyper 200 Series 12” 1200 Watts Max / 400 Watts RMS Single 4 Ohm Car Subwoofer Stamped Alpha Steel Basket with High Grade Magnet Non Pressed Paper Cone Audio
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BOA121 12 Inch Subwoofer | 6,000 Watts RMS Dual 1 Ohm Mega Subwoofer – Massive Audio
75 Series 12" 2Ω Dual Voice Coil Subwoofer | MTX Audio - Serious About Sound®
AudioPipe Sub-BDC4-12D2 12-Inch Sub Dual 2 Ohm 1100 W RMS Car Audio (4 Pack) - Walmart.com