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Amazon.com: Pyle 10" Car Audio Speaker Subwoofer - 1000 Watt High Power Bass Surround Sound Stereo Subwoofer Speaker System - Non Press Paper Cone, 90 dB, 4 Ohm, 50 oz Magnet, 2
Amazon.com: Massive Audio GTX64 – 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 250 Watt RMS, 500w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: NVX VCW124v3 12" 2400 Watt Peak (1200W RMS) Dual 4-Ohm VC-Series Car Subwoofer (VCW124 Version 3) : Electronics
Amazon.com: Facmogu 2PCS 5in Full Range Speaker Drivers, RMS 30W MAX 50W 4 Ohm, HiFi Wide Range Audio Driver Loudspeaker Replacements, DIY Car Vehicle Audio Speakers Bass Woofer Tweeters - Red : Electronics
2 Pack American Bass 15" Subwoofer 1200W RMS Power DVC 4 Ohm Elite 1544 Series : Electronics - Amazon.com
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : Electronics
Amazon.com: Rockford Fosgate P2D4-12 Punch P2 DVC 4 Ohm 12-Inch 400 Watts RMS 800 Watts Peak Subwoofer : Electronics
Amazon.com: Rockford Fosgate P3D4-12 Punch P3 DVC 4-Ohm 12-Inch 600-Watt RMS 1200-Watt Peak Subwoofer : Electronics
Amazon.com: Fielect 4Pcs DIY Magnetic Speaker 3W 4 Ohm Speaker 36mm Diameter Round Shape Replacement Loudspeaker : Electronics
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: 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,Yellow : Electronics
Amazon.com: Timpano 6.5” Shallow Midrange Speaker 4 Ohm 500 Watts Max Power Pro Audio Loudspeaker (1 Speaker) : Electronics
Amazon.com: Alpine W12S4 12-inch Single 4 Ohm Subwoofer Bundle : Electronics
Amazon.com: Facmogu 2PCS 6.5 Inch Audiophile Full Range Speakers, RMS 30W MAX 50W 4 Ohm, HiFi Full Range Car Audio Speaker Drivers, Wideband Stereo Audio Loudspeaker Replacement - Yellow : Electronics
Amazon.com: Audiopipe TXX-BDC4-10 Subwoofer Quad Stack 10 Inch 1800 Watt High Performance Powerful 4 Ohm DVC Vehicle Car Sub Audio Subwoofer Speaker System, Black : Electronics
Amazon.com: GRS 3FR-4 Full Range 3" Speaker Driver 4 Ohm : Electronics
Amazon.com: Skar Audio FSX8-4 8" 350 Watt 4 Ohm Pro Audio Midrange Loudspeaker, Each : Electronics
Amazon.com: Skar Audio IX-10 D4 10" 400 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: Fielect 4Pcs 5W 4 Ohm DIY Magnetic Speaker Audio Speakers 77mm Diameter Round Shape Replacement Loudspeaker : Electronics
Amazon.com: Timpano 1500 W Bundle with 2X 6.5 TPT-MR6-4 Bullet Midrange Speaker 500 Watts 4 Ohm + 2X TPT-ST2 3.5" 250 Watts Peak Super Tweeters for Car Audio Systems (2 Speakers, 2 tweeters) : 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
