15" COMPETITION SERIES SUBWOOFER 4000WMAX – GENIUS AUDIO USA
DS18 HOOL-X15.2DSPL HOOLIGAN X 15" Competition Subwoofer 4000 Watts RMS 4" 2-Ohm DVC. 15 inch competition subwoofer.
Amazon.com: Gravity Car Vehicle Subwoofer Audio Speaker - 15 Inch Competition Grade Pressed Paper Cone, 2 Ohm DVC, Advanced Air Flow, 4800W Power for Stereo Sound System Warzone G715D2 (1 Subwoofer) : Electronics