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Amazon.com: 4" Car Sound Speaker (Pair) - Upgraded Blue Poly Injection Cone 2-Way 180 Watt Peak w/ Non-fatiguing Butyl Rubber Surround 110 - 20Khz Frequency Response 4 Ohm & 3/4" ASV Voice
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Amazon.com: Car Two Way Speaker System - Pro 4 Inch 140 Watt 4 Ohm Mid Tweeter Component Audio Sound Coaxial Speakers For Car Stereo w/ 20 Oz Magnet, 1.85” Mount Depth Fits
Amazon.com: GRS 3FR-4 Full Range 3" Speaker Driver 4 Ohm : Electronics
Amazon.com: 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 Fits
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Amazon.com: Fielect 2Pcs 3W 4 Ohm DIY Magnetic Speaker 52mm Diameter Round Shape Replacement Loudspeaker : Electronics
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Amazon.com: 6.5" Three-Way Sound Speaker System - 180 W RMS/360W Power Handling w/ 4 Ohm Impedance and 3/4'' Piezo Tweeter for Car Component Stereo, Round Shaped Pro Full Range Triaxial Loud Audio -
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Amazon.com: Sound Storm Laboratories SSL EX369 6x9 300W 3-Way Stereo Speakers with 4 Ohm Impedance Pair, Poly Injection Woofer Cone, and Rubber Surround, Black : Electronics
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : Electronics
Amazon.com: Cerwin Vega H7653 6.5" and H7693 6" x 9" 3-Way Coaxial Speakers 4 Ohm Pack : Everything Else
4 Pcs Multimedia 3W 3 Watt 4 Ohm 40mm Dia Aluminum Internal Magnet Speaker : Electronics - Amazon.com
