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B&C Speakers 21iPAL 21" HIGH POWER WOOFER NEW! AUTHORIZED DISTRIBUTOR! – SpeakersAndAmps.com
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JBL GX Series 12" Single-Voice-Coil 4-Ohm Subwoofer Black GX1200 - Best Buy
Amazon.com: JBL Club WS1000 10" Shallow Mount subwoofer w/SSI (Selectable Smart Impedance) Switch from 2 to 4 ohm Bundled with Alphasonik Earbuds : Electronics
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Amazon.com: American Bass VFL-12D1 VFL COMP Signature 12-inch Subwoofer Woofer 5000 Watt RMS & 10000 Watt Max Dual Voice Coil 1 Ohm Voice Coils Black : Electronics
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