BOSS AUDIO SYSTEMS 12 in. 1600-Watt 4 Ohm SVC Car Audio Power Stereo Subwoofer P12SVC - The Home Depot
Car Subwoofers: Car Subs & Boxes - Best Buy
PYLE 6" 600W Max Dual Voice Coil 4-Ohm Car Stereo Audio Subwoofer (12 Pack) 12 x PLPW6D - The Home Depot
Car Subwoofers: Car Subs & Boxes - Best Buy
Amazon.com: Car Vehicle Subwoofer Audio Speaker - 15 Inch Competition Grade Pressed Paper Cone, 2 Ohm DVC, Advanced Air Flow, 3500W Power for Stereo Sound System - Gravity Warzone GW15D2 (1 Subwoofer) : Electronics
American Bass XR-12D4 12" Car Subwoofer 1200 Watts DVC 4-Ohm – Moon Car Stereo
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ELITE Z12 12" Car Stereo Subwoofer 1600W Max Dual 4 Ohm - Limitless Lithium