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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”
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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
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ERH INDIA Mini Digital Stereo Amplifier Board with 2 Speakers of 3 Watt 4 Ohm : Amazon.in: Electronics
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Volt/Amp/Watt/Ohm - Calculator:Amazon.com:Appstore for Android