Amazon.com: CT Sounds MESO-8-D4 1600 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm : Everything Else
Amazon.com: NVX VCW104v3 (VCW104 Version 3) 1600 Watt Peak (800W RMS) 10" VC-Series v3 Dual 4-Ohm Car Subwoofer : Electronics
Amazon.com: PRV AUDIO 8 Inch Midbass Speaker 8MB450-4 v2, 450 Watts Program Power, 2 in Voice Coil, 4 Ohm, 225 Watts RMS Pro Audio Mid Bass Woofer (Single) : Electronics
Amazon.com: AudioPipe TXX-BDC4-12 Dual 4 Ohm 12 inch 2,200 W Car Speaker Subwoofer, Black (4 Pack) : Electronics
Amazon.com: Planet Audio AC12D Car Subwoofer - 1800 Watts Maximum Power, 12 Inch, Dual 4 Ohm Voice Coil, Sold Individually : Electronics
Amazon.com: Seismic Audio - SA-SBL104-10 Inch Dual 4 Ohm Slim Mount Car Audio Subwoofer 400 Watts Max Power : Everything Else
Amazon.com: Rockford Fosgate P3D4-12 Punch P3 DVC 4-Ohm 12-Inch 600-Watt RMS 1200-Watt Peak Subwoofer : Electronics
Amazon.com: Pyle 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: Facmogu 3 inch Tweeter Speakers HiFi Full Range Woofer Loudspeaker, 2 PCS 4 Ohm Anti-Magnetic Speakers for 2.0/2.1 Boom Box Satellites Speaker DIY (4Ω) : Electronics
Amazon.com: Skar Audio FSX65-4 6.5" 300 Watt 4 Ohm Pro Audio Midrange Loudspeaker, Each : Everything Else
Amazon.com: Massive Audio FX4 – 4 Inch, 200 Watts Max, 50 Watts RMS, FX Series Coaxial Speakers, 20mm Aluminum Dome Ferro Fluid, 6dB Linksworth Riley Crossover 4 Ohm (Sold AS Pair) : Electronics
Amazon.com: Cylewet 2Pcs 2inch 4Ohm 10W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2) CYT1116 : Electronics
Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64 : Electronics
Amazon.com: 15" Subwoofer 1000W Single 4 Ohm Bass Pro Car Audio American Bass DX-15 : Electronics
Amazon.com: Harmony Audio HA-R104 Car Stereo Rhythm Series 10" Sub 500W Single 4 Ohm Subwoofer : Electronics
Amazon.com: KICKER 46CSC44 CS-Series CSC4 4-Inch (100mm) Coaxial Speakers, 4 -Ohm (Pair) : Electronics
Amazon.com: (2) Skar Audio FSX8-4 350-Watt 8-Inch 4 Ohm MID-Range Loudspeakers - 2 Speakers : Electronics
Amazon.com: Visaton FRS7-4 2.5" Full-Range Speaker 4 Ohm : Electronics
Amazon.com: Fielect 2Pcs DIY Magnetic Speaker 3W 4 Ohm Full Range Audio Speaker Stereo Woofer Loudspeaker Replacement for Arduino, 52mm Diameter : Electronics
Amazon.com: PRV AUDIO 6.5 Inch Midrange Speaker 6MR500-NDY-4, 500 Watts Max Power, 4 Ohm, 2 in Voice Coil, 250 Watts RMS, Neodymium Magnet, Smooth Full Range Response Through 13kHz for Car Audio
Amazon.com: GRS 3FR-4 Full Range 3" Speaker Driver 4 Ohm : Electronics
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
