Amazon.com: Savard Speakers HiQ Series 8" inch Dual 4 Ohm Subwoofer : Electronics
Amazon.com: 6.5 Inch Car Woofer Speaker - 300 Watt High Powered White Injected Polypropylene Cone Car Audio Sound Component Speaker System w/ High-Temperature Kapton Voice Coil, 4 Ohm, 40oz Magnet - Pyramid
Amazon.com: JBL BassPro SL2 Active Underseat Car Subwoofer with Built in Amplifier - Under Seat 8'' Subwoofer Car with 125 Watt Power Amplifier : Electronics
Amazon.com: 5 Core 10" inch Full Range Subwoofer Car Audio Speakers High Power Bass Sub woofer Peak 600W 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement
Amazon.com: Audiopipe APSB-1299PP Dual 12 Inch Car Audio Subwoofer Speakers and Sealed Enclosure, 2 Channel 500 Watt Amplifier, and Wire Installation Kit : Electronics
Amazon.com: Belva BPKG212v2 1200W Dual 12" Car Subwoofer with Ported Enclosure, Monoblock Amplifier, Wiring Kit and Remote Bass Knob : Electronics
Amazon.com: Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub : Everything Else
Amazon.com: Pyle Car Mid Bass Speaker System - Pro 5 Inch 200 Watt 4 Ohm Auto Mid-Bass Component Poly Woofer Audio Sound Speakers For Car Stereo w/ 30 Oz Magnet Structure, 2.2”
Amazon.com: DS18 PRO-BX18N.2D Car Subwoofer Audio Speaker - 18" in Neodymium Magnet, 6" Dual Voice Coil, 4 Ohm Impedance, 2500W Rms Power, 5000W Max Power - Reinforced Paper Cone for Outstanding Performance :
Amazon.com: Pyle Car Subwoofer Audio Speaker - 8in Non-Pressed Paper Cone, Black Plastic Basket, Dual Voice Coil 4 Ohm Impedance, 800 Watt Power and Foam Surround for Vehicle Stereo Sound System -
Amazon.com: Boss Audio 8-Inch Dual Voice Coil 4-Ohm 1000-Watt Car Subwoofer (4 Pack) P80DVC : Electronics
Amazon.com: Massive Audio HIPPOXL82R - 8 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 8" Subwoofer 900 Watt RMS, 1800w MAX Dual 2 Ohm, 2.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Car Vehicle Subwoofer Audio Speaker - 10 Inch Red Electro-Plated Cone, Red Plastic Basket, 1.5” Kapton Voice Coil, 4 Ohm Impedance, 600 Watt Power, for Vehicle Stereo Sound System - Pyle PLW10RD : Electronics
Amazon.com: 5 Core 8" Full Range Subwoofer Car Audio Speakers, RMS 40W Peak 400W, 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement Black SP 872 B : Electronics
Amazon.com: 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 Coil -
Amazon.com: Skar Audio Dual 8" Complete 1,400 Watt SDR Series Subwoofer Bass Package - Includes Loaded Enclosure with Amplifier : Electronics