Amazon.com: Dayton Audio PA310-8 12" Pro Woofer : Electronics
Amazon.com: CT Sounds MESO-8-D2 1600 Watts Max 8 Inch Car Subwoofer Dual 2 Ohm : Everything Else
Amazon.com: Visaton R10S 4" Full Range Speaker 8 Ohm : Electronics
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
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Amazon.com: JBL Professional Control 25-1L-WHCompact 8-Ohm Indoor/Outdoor Background/Foreground Speaker, White, Sold as Pair : Everything Else
Amazon.com: Alphasonik AS8DF 8 inch 600 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure :
Amazon.com: Pyramid 8 Inch Car Subwoofer Speaker - 350 Watt High Powered Car Audio Sound Component Speaker System w/ 1.5 Inch High-Temperature Kapton Voice Coil, 89.2 dB, 8 Ohm, 50 oz Magnet - Pyramid PW848USX : Electronics
Amazon.com: Facmogu 2PCS 8in Full Range Audio Speakers, RMS 50W Peak 120W, 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement - Red : Electronics