Amazon.com: Ground Zero Iridium 16,5 cm / 6.5" Subwoofer - 4 Ohm - 100 WRMS : Electronics
Amazon.com: Skar Audio EVL-65 D4 6.5" 400 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: PRV AUDIO 4 Inch Midrange Speaker 4MR60-4, 60 Watts Program Power, 4 Ohm, 30 Watts RMS Power Pro Audio Loudspeaker (Single) : Electronics
Amazon.com: Facmogu 2PCS 8 Inch Full Range Audio Speakers, RMS 50W Peak 120W 4 Ohm, Car Vehicle Audio Full Range Drivers, Wide Range Bass Woofer DIY Loudspeaker Replacement - Yellow : Electronics
Amazon.com: BOSS NX524 5.25" 600W 4-Way Car Audio Coaxial Speakers Stereo Black 4 Ohm : Electronics
Amazon.com: Skar Audio FSX8-4 8" 350 Watt 4 Ohm Pro Audio Midrange Loudspeaker, Each : 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: CT Sounds STRATO-10-D4 2500 Watts Max 10 Inch Car Subwoofer Dual 4 Ohm
Amazon.com: KICKER 43C104 Comp 10" 300 Watt SVC 4-ohm Car Audio Subwoofer Sub : Electronics
Amazon.com: Pyramid 6.5 Inch Car Woofer Speaker - 300 Watt High Powered White Injected Polypropylene Cone Car Audio Sound Component Speaker System w/ High-Temperature Kapton Voice Coil, 4 Ohm, 40oz Magnet - WX65X : Electronics
Amazon.com: Visaton FRS7-4 2.5" Full-Range Speaker 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
Amazon.com: MakerHawk 2PCS 4 Ohm 3 Watt Speaker for A rduino Single Cavity Mini Speaker Full-Range Cavity Mobile Portable Advertising Machine Speaker with 11mm Line Length JST-PH2.0mm-2 pin Terminal : Electronics
Amazon.com: (2) Skar Audio FSX8-4 350-Watt 8-Inch 4 Ohm MID-Range Loudspeakers - 2 Speakers : Electronics
Amazon.com: Cylewet 2Pcs 2inch 4Ohm 10W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2) CYT1116 : Electronics
Amazon.com: Rockford Fosgate PPS4-6 6.5" 800W 4-Ohm Impedance Mid-Range Car Speakers 4 Pack with Fiber Reinforced Paper Cone and Stamp Cast Aluminum Frame : Electronics
Amazon.com: GRS 3FR-4 Full Range 3" Speaker Driver 4 Ohm : 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: Fielect 5W 4 Ohm DIY Magnetic Speaker Audio Speakers 77mm Diameter Round Shape Replacement Loudspeaker 1Pcs : Electronics
Amazon.com: Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: Skar Audio FSX10-4 10" 300 Watt 4 Ohm Pro Audio Midrange Loudspeaker, Each : Electronics
2 Pack American Bass 15" Subwoofer 1200W RMS Power DVC 4 Ohm Elite 1544 Series : Electronics - Amazon.com
Amazon.com: Fielect 4Pcs 5W 4 Ohm DIY Magnetic Speaker Audio Speakers 77mm Diameter Round Shape Replacement Loudspeaker : Electronics
Amazon.com: PRV AUDIO 6MB100-4 Pair of 6.5 Inch Midbass Speaker for Pro Car Audio, 4 Ohm, 50 Watts RMS Power, 200 Watts Max Power Mid Bass Factory Replacement Loudspeaker (Pair) : Electronics
Amazon.com: Facmogu 2PCS 6.5in Full Range Speakers, RMS 30W MAX 50W, 4 Ohm HiFi Full Range Car Audio Speaker Drivers, Wideband Stereo Audio Loudspeaker Replacements - Red : Electronics
Amazon.com: MTX TN10-04 10-Inch Single 4-OHM Subwoofer 150-Watt RMS Black : Electronics
