Amazon.com: DS18 IXS10.4S Shallow Car Subwoofer - 10" 1000W MAX Power, 500W RMS, Single Voice Coil, 4 Ohms Impedance (1 Speaker) : Electronics
Amazon.com: Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device : Amazon Devices & Accessories
Amazon.com: AudioPipe TXX-BDC4-12 Dual 4 Ohm 12 inch 2,200 W Car Speaker Subwoofer, Black (4 Pack) : Electronics
Amazon.com: NVX NSW124V2 350 watt RMS Dual 4-Ohm 12 inch Professional Grade N-Series V2 Car Subwoofer : Electronics
Amazon.com: American Bass 10" Competition Car Subwoofer, 3000 Watt Maximum Power, Bass Surround Speaker, Car Audio Stereo Subwoofer - 10 inch, Dual 4 Ohm Voice Coil : Electronics
Amazon.com: Rockville (2) W12K9D4 12" 8000 Watt Car Subwoofers Dual 4-Ohm Subs CEA Compliant : Electronics
Amazon.com: Timpano 10" Sub D4 1000 Watts Max Power Dual 4 Ohm, 10 Inch Car Subwoofer 14 mm Xmax, TPT-T1000-10 D4, 2.4 in Voice Coil, Deep Low Tones Sub Woofer for Car
Amazon.com: Goldwood Sound GW-204/8S Shielded 4"" Woofer 70 Watt 8ohm Replacement Speaker,Black" : Musical Instruments
Rockville 1500w 15" Raw DJ Subwoofer 4 Ohm Sub Woofer 70OZ Magnet, 15 inch (RVW1500P4)
Amazon.com: Massive Audio GTX84 – 8 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 8" Subwoofer 400 Watt RMS, 800w MAX Dual 4 Ohm, 2 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: American Bass 10" 1600 Watts 3" Dual 4 Ohm Voice Coil Subwoofer Titan 1044 : Electronics
Amazon.com: Gravity Warzone 15 Inch 3500 Watt Car Audio Subwoofer w/ 4 Ohm DVC Power (Single) : Electronics
Amazon.com: AudioPipe TXX-BDC4-10 10 Inch 1800 Watt High Performance Powerful 4 Ohm DVC Vehicle Car Sub Audio Subwoofer Speaker System, Black : Electronics
Amazon.com: Dayton Audio DCS165-4 6-1/2" Classic Subwoofer 4 Ohm : Electronics
Amazon.com: CT Sounds OZONE-10-D4 1600 Watts Car Subwoofer Dual 4 Ohm : Electronics
Amazon.com: Audiopipe TXXBDC415 AUDIPIPE 15" 4 Magnet WOOFER : Electronics
Amazon.com: GRS 4PF-8 4" Paper Cone Foam Surround Woofer : Electronics
Amazon.com: Massive Audio SUMMOXL104-10 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 10" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Big Jeff 10" Subwoofer 4000W 4 Ohm DVC Pro Car Audio Bass Massive HIPPOXL104 : Electronics
Amazon.com: Massive Audio HIPPOXL122R – 12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 3000 Watt RMS, 6000w MAX Dual 2 Ohm, 4 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Car Vehicle Subwoofer Audio Speaker - 12 Inch 1200 Watt Power Ultra Slim DVC Subwoofer w/ Dual 2.5” Kapton Voice Coil, 4 Ohm Impedance, 75 Oz Magnet - for Vehicle Stereo Sound System - Pyle PLWCH12D : Electronics
