Amazon.com: Skar Audio VD-12 D4 12" 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer : Electronics
Amazon.com: Kenwood KFC-W3041 12" 4 Ohm 2000W Car Subwoofer (Single) with Gravity Magnet Phone Holder Bundle : Electronics
Amazon.com: Alphasonik AS8DF 8 inch 600 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: Orion Cobalt COTW1 Series Super Bullet Tweeter 4 Ohms 50 RMS Car Audio Car Stereo Set of 2 Tweeters : Electronics
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : Electronics
Amazon.com: KICKER 2 12" Comp Subwoofers and a Crunch PX2000.1D 2000 Watt Max Amp + Amp Wire kit Package : Electronics
Amazon.com: (2) Kicker 44CWCS124 CompC 12" 600 Watt Single 4-Ohm Car Subwoofer Bundle with Dual Sub Box Enclosure Installation Kit and Rockville RD12 Dual MDF Sealed Subwoofer Enclosure (4 Items) : Electronics
Amazon.com: AudioPipe TXX-BDC4-12 Dual 4 Ohm 12 inch 2,200 Watt Car Speaker Subwoofer (2 Pack) Bundle with QPower QBOMB12TB Dual 12 Inch Triangle Ported Car Audio Subwoofer Box Enclosure with Bedliner Spray : Electronics
Amazon.com: BOSS Audio Systems CX122 1400 Watt Car Subwoofer, 12 Inch, Single 4 Ohm Voice Coil, 12 inch subwoofer Box Ready : Electronics
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 :
Rockford Fosgate P3D4-12 12 inch 1200 Watt 4-Ohm DVC Car Audio Subwoofer and Q Power 12 inch Single Heavy Duty Vented Subwoofer Enclosure Box
Amazon.com: BOSS Audio Systems CX122 1400 Watt Car Subwoofer, 12 Inch, Single 4 Ohm Voice Coil, 12 inch subwoofer Box Ready : Electronics
Facmogu 3 inch Tweeter Speakers HiFi Full Range Woofer Loudspeaker, 2 PCS 4 Ohm Anti-Magnetic
Amazon.com: Planet Audio TQ12S 12-Inch Single 4-Ohm Voice Coil Subwoofer - Set of 1 : Electronics
Amazon.com: Dayton Audio DCS165-4 6-1/2" Classic Subwoofer 4 Ohm : Electronics
Amazon.com: Rockville VS12K54 12" K5 1400w Car Subwoofer in Vented Sub Enclosure Box - 4 Ohm : Everything Else
Amazon.com: BOSS Audio Systems P120F 1400 Watt, 12 Inch , Single 4 Ohm Voice Coil, Shallow Mount Car Subwoofer : Electronics
Amazon.com: Kenwood Excelon P-XW1002B 10" Subwoofer with Sealed Down-Firing Enclosure | 10" 4-ohm subwoofer : Electronics
Amazon.com: Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver and Box X1 MM Phono Preamplifier : Electronics
Amazon.com: Kicker 47TRTP122 Car Audio Down Firing 12" Thin Sub Box Passive Radiator Bundle with Harmony HA-A400.1 Amplifier & Amp Kit : Electronics
Amazon.com: eboxer-1 3 Inch Mini Full Frequency Audio Speaker,4ohm 5W High Sensitivity Loudspeaker, Full Range Audio Speaker Stereo Woofer Loudspeaker,Home Stereo woofer Speaker for Multimedia Sound Box DIY : Electronics
Amazon.com: Jensen MOD12-70 12" 70 Watt Guitar Speaker, 4 ohm : Musical Instruments
