Amazon.com: 8” Slim Marine Subwoofer - 300W 4 Ohm Waterproof Car Component Speaker System, Low Profile PP Cone w/Rubber Edge, 30 Oz Magnet 1.5" Voice Coil, for Custom Audio Boat Truck Mobile
SUNDOWN AUDIO E-8 V.6 D2 8" SUB 300W RMS DUAL 2-OHM SUBWOOFER BASS SPEAKER NEW | eBay
Amazon.com: Pyramid 6" Car Audio Speaker Subwoofer - 300 Watt High Power Bass Surround Sound Stereo Subwoofer Speaker System w/ Molded P.P. Cone, 86 dB, 4Ohm, 40 oz Magnet,1 inch KAPTON Voice
Triple-8" Powered Subwoofer Trevoce-8 | OSD Audio
Buy Wholesale China 6.5"-300w Subwoofer,aluminium Basket 127mm T-yoke And Washer With Black Y35,134mm Double Magnet & Subwoofer at USD 31.87 | Global Sources
I Series 12" Dual 2 Ohm 300W RMS Subwoofer by Incriminator Audio® (Previous Model) - SSA STORE