Amazon.com: Focal Performance Sub P 30 12" 4-ohm subwoofer : Electronics
Amazon.com: NVX VSW102v2 VS Series 10-inch True 500 watt RMS Dual 2-Ohm Car Subwoofer with Aluminum Shorting Ring : Electronics
Amazon.com: BESTISAN Powered Subwoofer, 6.5" Active Home Audio Subwoofer in Compact Design,LFE & Stereo Line Inputs & Audio Output, Built-in Amplifier for Home Theater/Receiver/TV/Speakers, Black, SW65D : Everything Else
Amazon.com: Sundown Audio X-18 V.2 D4 18" 1500W RMS Dual 4-Ohm X V.2 Series Subwoofer : Electronics
Amazon.com: Gladen Spl 12 30 Cm Subwoofer : Electronics
Amazon.com: American Bass HAWK 15 Inch Dual 4 Ohm Voice Coil 3000 Watt Subwoofer Speaker with 80 Ounce Magnet and Kevlar Fiber Non-Pressed Paper Cone, Red : Electronics
Amazon.com: Gladen Sqx 12 30 Cm Subwoofer : Electronics
Amazon.com: KICKER 48VCVR122 CompVR 800 Watt 12" Car Subwoofer in Vented Sub Box Enclosure : Electronics
Amazon.com: Pyramid Car Mid Bass Speaker System - Pro 6.5 Inch 200 Watt 4 Ohm Vehicle Mid-Bass Component Poly Woofer Audio Sound Speakers w/ 30 Oz Magnet Structure, 2.5” Mount Depth Fits OEM - Pyramid W64
Amazon.com: Atrend 10SME 10” Single Sealed / Shallow Mount Subwoofer Enclosure : 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”