Power Acoustik 10" Powerful 600W RMS Shallow Car Subwoofer Loud Speaker, Black - Walmart.com
BOSS Audio Systems BE8D Elite Series 8 Inch Car Audio Subwoofer - 600 Watts Max, Dual 4 Ohm Voice Coil, For Truck Boxes and Enclosures, Hook Up To Amplifier
Pyle PLPW6D 6In 600W Dual 4 Ohm Car Audio Stereo Speaker Subwoofer, Black - Walmart.com
Rockville W12K6D4 V2 12" 2400w Car Audio Subwoofer Dual 4-Ohm Sub CEA Compliant
CVX10D4 | 10" Car Audio Subwoofer, 600W, Dual 4ohms, Single - Mid-Level Subwoofers
OPEN BOX) SUNDOWN AUDIO SD-4 SERIES 12" 600W DVC 4 OHM NEO CAR AUDIO SUBWOOFER NEO SD4 CLEARANCE