Amazon.com: Pyle Car Three-Way Speaker System - Pro 4 x 6 Inch 180W 4 Ohm Mid Tweeter Component Audio Sound Speakers For Car Stereo w/ 30 Oz Magnet Structure, 2” Mount Depth
Amazon.com: Visaton FR10WP-4 Outdoor 4" Full-Range Speaker 4 Ohm Black : Electronics
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : Electronics
Amazon.com: Fielect 4Pcs 5W 4 Ohm DIY Magnetic Speaker Audio Speakers 77mm Diameter Round Shape Replacement Loudspeaker : Electronics
Amazon.com: 15" Subwoofer 1000W Single 4 Ohm Bass Pro Car Audio American Bass DX-15 : 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: uxcell 3W 4 Ohm Metal Housing Round Magnet Speaker Loudspeaker 2Pcs : 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: Planet Audio AC12D Car Subwoofer - 1800 Watts Maximum Power, 12 Inch, Dual 4 Ohm Voice Coil, Sold Individually : Electronics
Amazon.com: Dayton Audio ND105-4 4" Aluminum Cone Midbass Neo Driver 4 Ohm : Electronics
Amazon.com: Mini Hobby Speaker - 2 inch 4 Ohms : Electronics
Amazon.com: Dayton Audio DAEX32U-4 Ultra 32mm Exciter 20W 4 Ohm : Electronics
Amazon.com: Rockville RVP18W4 1200 Watt 18" Raw Replacement DJ PA Subwoofer 4 Ohm Sub Woofer : Musical Instruments
Amazon.com: Visaton FRS7-4 2.5" Full-Range Speaker 4 Ohm : Electronics
Amazon.com: (2) Skar Audio FSX8-4 350-Watt 8-Inch 4 Ohm MID-Range Loudspeakers - 2 Speakers : Electronics
Amazon.com: CT Sounds MESO-8-D4 1600 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm : 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: Fielect 5W 4 Ohm DIY Magnetic Speaker Audio Speakers 77mm Diameter Round Shape Replacement Loudspeaker 1Pcs : 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: Gikfun 4Ohm 40mm Diameter 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1794 : Electronics
Amazon.com: NVX VCW104v3 (VCW104 Version 3) 1600 Watt Peak (800W RMS) 10" VC-Series v3 Dual 4-Ohm Car 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: Rockford Fosgate P3D4-12 Punch P3 DVC 4-Ohm 12-Inch 600-Watt RMS 1200-Watt Peak Subwoofer : 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
