Memphis Car Audio 12" 15-SA12D4 Shallow Subwoofer 4ohm 250W RMS 500 Peak

Gravity 12 Inch 2000 Watt Car Audio Subwoofer w/ 4 Ohm DVC Power 12' Sub X1

Memphis 15-PR12D4V2 12in Dual Voice Coil Non-Enclosed Car Subwoofer

NEW SKAR AUDIO SDR-12 D2 12" 1200 WATT MAX POWER DUAL 2 OHM CAR SUBWOOFER

MEMPHIS 15-SRX212 12" SUBWOOFER

AB 15" DVC Subwoofer Bass Replacement Speaker 4ohm Car Audio Sub 1000w 15in NEW

NEW SKAR AUDIO SVR-15 D4 1600W MAX POWER 15-INCH DUAL 4 OHM CAR SUBWOOFER

NEW Memphis Audio PRX1224 12" Car Audio Subwoofer, 2 or 4 Ohm Selectable