Amazon.com: ALPHASONIK AS10DF 10 inch 1200 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: CT Sounds MESO-8-D2 1600 Watts Max 8 Inch Car Subwoofer Dual 2 Ohm : Everything Else
Amazon.com: 10-Inch Low-Profile Amplified Subwoofer System - 900 Watt Compact Enclosed Active Marine Underseat Car Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs - PLMRSBA10 : Electronics
Amazon.com: Focal 100IWSUB8 High Power Passive Bass-Reflex Subwoofer with 100 IWSUB8 Amplifier : Electronics
Amazon.com: Skar Audio Single 12" Complete 1,200 Watt SDR Series Subwoofer Bass Package - Includes Loaded Enclosure with Amplifier : Electronics
Amazon.com: Pyle 5 Inch Woofer Driver - Upgraded 200 Watt Peak High Performance Mid-Bass Mid-Range Car Speaker 450Hz - 7kHz Frequency Response 15 Oz Magnet Structure 8 Ohm w/ 92dB and Paper
Amazon.com: 8-Inch Carpeted Subwoofer Tube Speaker - 400 Watt High Powered Car Audio Sound Component Speaker Enclosure System w/ 2” Aluminum Voice Coil, 4 Ohm, 30Hz-700kHz Frequency - Pyle PLTB8 : Electronics
Amazon.com: Massive Audio GTX64 – 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 250 Watt RMS, 500w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually : Electronics
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 SLC12S Car Subwoofer Audio Speaker - 12" in. Paper Glass Fiber Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 500W MAX Power and Foam Surround for Vehicle Stereo
Amazon.com: Denon Home Subwoofer with HEOS Built-In, Deep, Powerful Bass, 8" Bass-Reflex Woofer, Pair with Denon Home Sound Bar 550, and Denon Home 150/250/350 Speakers or HEOS Speakers, Easy Installation : Electronics
Amazon.com: Alphasonik Dynamis DCP8 8 inch 1000 Watts 4-Ohm Shallow Mount Flat Enclosed Sub woofer in Ported Vented Box for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Custom Port
Amazon.com: American Bass XFL1522 15 SUBWOOFER AMERICAN BASS DUAL 2 OHM VOICE COILS 200 OZ MAGNET : Electronics
Amazon.com: PowerBass PS-AWB121-12" Single Loaded Amplified Ported Enclosure : Electronics
Amazon.com: NVX VCW102 10-inch True 750 watt RMS Dual 2-Ohm Car Subwoofer [ VC Series ] 3-Dimensional Die Cast Aluminum Basket : Electronics
Amazon.com: American Bass XR-15D2 15" 3,000 Watts Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer : 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