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: DB Bass Inferno BIW2 12S4 Single Voice Coil Subwoofer : Electronics
Amazon.com: Pyramid 10 Inch Car Subwoofer Speaker - 500 Watt High Powered Car Audio Sound Component Speaker System w/ 2 Inch High-Temperature Kapton Voice Coil, 85.6 dB, 8 Ohm, 60 oz Magnet - Pyramid PW1048USX : Electronics
Amazon.com: Pyle 8 Inch Car Midbass Woofer - 360 Watt High Powered Car Audio Sound Component Speaker System w/High-Temperature Kapton Voice Coil, 200Hz-5kHz Frequency, 94 dB, 8 Ohm, 35 oz Magnet - PDMR8 : Electronics
Amazon.com: Focal SUB P25 10" 200W RMS 400W Max Single 4-Ohm Subwoofer : Electronics
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
Amazon.com: Alphasonik NSW412 Neuron 400 Series 12” 1500 Watts Max / 500 Watts RMS Dual 4 Ohm Car Subwoofer w/ High Grade Magnet Non Pressed Paper Carbon Stitched Cone Cooling Rings System