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Amazon.com: Gravity WZP69 Warzone Series 6x9 inch 4 Ohm Pro Midrange Coaxial Loud Corrugated Surround Speaker 4-Ohms with 800W Max, 1 Speaker Car Audio High Standard Reliability Testing : Electronics
Amazon.com: Pyle 4'' x 6'' Three Way Sound Speaker System - Pro Mid Range Triaxial Loud Audio 240 Watt per Pair w/ 4 Ohm Impedance and 3/4'' Piezo Tweeter for Car Component
Amazon.com: Visaton Speaker, FR 10 Hm, 4 Ohms - 4898 : Electronics
Amazon.com: 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 Inch
Amazon.com: DS18 HOOL-X15.4DSPL Hooligan X 15" SPL Car Audio Subwoofer 4000 Watts Rms 4" Dual Voice Coil 4-Ohm DVC 4+4 Ohm (1 Speaker) : Electronics
Amazon.com: Alphasonik NSW410 Neuron 400 Series 10” 1200 Watts Max / 400 Watts RMS Dual 4 Ohm Car Subwoofer w/ High Grade Magnet Non Pressed Paper Carbon Stitched Cone Cooling Rings System
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Amazon.com: PRV AUDIO 8 Inch Midrange Speaker 8MR400-NDY-4, 400 Watts Max Program Power, Neodymium, 4 Ohm, 200 Watts RMS Power, 94 dB, Mid Range Loudspeaker fo Pro Car Audio (Single) : Electronics
Amazon.com: Pair of Car Vehicle Subwoofer Audio Speaker - 6 Inch Competition Pressed Paper Cone, 4 Ohm, Advanced Air Flow, 400W Power for Stereo Sound System - Audiotek K706 (2 Subwoofers) w/Wire
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Amazon.com: Car Vehicle Subwoofer Audio Speaker - 8 Inch Blue Injection Molded Cone, Blue Chrome-Plated Steel Basket, Dual Voice Coil 4 Ohm Impedance, 600 Watt Power, for Vehicle Stereo Sound System -
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Amazon.com: DS18 ZXI15.4D 15" High Excursion Car Audio Subwoofer 2000W Watts Dual Voice Coil 4-Ohm 4 Magnets (1 Speaker) : Everything Else
Amazon.com: 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 - Pyramid
Amazon.com: 1x Gravity 15 Inch 2400 Watt Car Audio Subwoofer w/ 4 Ohm DVC Power 15 in. Sub - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : Electronics
Amazon.com: Orion XTR Subwoofer DVC 4 OHM Max Music Power Watts Subwoofer Black Speaker Car Stereo Bass Woofers (XTR154D, 15 Inch - DVC 4 OHM) : Electronics
Amazon.com: Planet Audio BBD12B 12 Inch Car Subwoofer - 2500 Watts Maximum Power, Dual 4 Ohm Voice Coil, Sold Individually, Black : Electronics
Amazon.com: Car Eight Way Speaker System - Pro 6 x 9 Inch 500W 4 Ohm Mid Tweeter Component Audio Sound Speakers For Car Stereo w/ 120 Oz Magnet Structure, 3.55” Mount Depth
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Amazon.com: DS18 ZR6.4D Elite-Z 6 Inch Car Audio Subwoofer 600W Watts Dual Voice Coil 4-Ohm DVC 4+4 Ohm (1 Speaker) : Everything Else
Amazon.com: Pyle Car Mid Bass Speaker System - Pro 5 Inch 200 Watt 4 Ohm Auto Mid-Bass Component Poly Woofer Audio Sound Speakers For Car Stereo w/ 30 Oz Magnet Structure, 2.2”
