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BOSS Audio BAB10 10 Inch 1200W Max Enclosed Amplified Car Subwoofer Box, Black, 1 Piece - Baker's
OEM 10' Car Audio Compact Enclosed Powered Enclosed Subwoofer for Car Under Seat - China Active Subwoofer, Underseat Subwoofer | Made-in-China.com
MTX Audio® RTP8A - RoadThunder Series 8" 120W 4 Ohm Single Down-Fire Ported Powered Enclosed Subwoofer
JBL Bass Pro SL 8" Under Seat Enclosed Subwoofer: SUBBPSL2AM
Kicker 48TRTP82 8-Inch Enclosed Subwoofer, CompRT Car Audio Sub, 300W – Car Toys
CP208LG-W3v3 - Car Audio - Subwoofer Systems - MicroSub™ - JL Audio