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Amazon.com: JBL Club WS1000 - 10” shallow mount subwoofer w/SSI™ (Selectable Smart Impedance) switch from 2 to 4 ohm, Black : Electronics
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Best Subwoofers "The List" - Subwoofer 101 Best Subwoofers - Top-Rated Subwoofers for Enhanced Audio Experience | Subwoofer101.com
Meaty's Under-seat subwoofer & 5 Channel Amp to OEM radio upgrade in a 2015 XV | Subaru Crosstrek and XV Forums
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