Amazon.com: PRV AUDIO 6MB200 v2 6.5 Inch Speakers Midbass Woofer 8 Ohm, 100 Watts RMS, 200 Watts Program Power, 93.5 dB 1.5 in Voice Coil for Small Custom Enclosures Pro Car Audio System (Single) : Musical Instruments
Amazon.com: Sound Town 15" 450W Raw Woofer Speaker with 4" Voice Coil, 100 oz Magnet, Replacement Woofer for PA/DJ Subwoofer, 4-ohm (STLF-1504-4) : Musical Instruments
Goldwood OEM 8 in. Woofer 130-Watt 8 ohm Replacement Speaker GW-8002/8 - The Home Depot
Amazon.com: PyleUsa Single Voice Coil Car Subwoofer - 8 Inches, 200 Watts at 4-Ohm Car Audio Powered Subwoofer, Injection Cone with Rubber Edge, High-Powered Car Subwoofer, Audio - PLMW83 Black : Electronics
Amazon.com: 5 CORE 2000 Watt 12 Inch RAW DJ Speaker PA Subwoofer Replacement 8 Ohm Sub Woofer, 4” Voice Coil Loudspeaker Woofer Voice Coil, Heavy Bass FR 12155 : Electronics
Amazon.com: Massive Audio M10 10 Inch 350 Watts, 8 Ohm Pro Audio Midrange Speaker for Cars, Stage and DJ Applications. Sold Individually. : Electronics
Amazon.com: 5 CORE Car Subwoofer Audio Speaker - 8 inch 4 Ohm, Foam Surround for Vehicle Stereo Sound System 90mm Magnet Loudspeaker Woofer Replacement Black WF 8"-890 1 PC : Electronics
Amazon.com: PRV AUDIO 12 Inch Woofer Speaker 12W750A 750 Watts Program Power, 8 Ohm, 2.5 in Voice Coil, 375 Watts RMS Pro Audio Systems Loudspeaker (Single) : Electronics