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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
Amazon.com: Rockford Fosgate Pair of 2 Punch P1 15" 1000W 4-Ohm SVC Subwoofers | 2 x P1S4-15 : Electronics
Amazon.com: Marine Audio TX2-120 Watts x 2 @ 4 Ohm RMS Marine Compact Car Amplifier 2 Channel Built-in Car Bluetooth (Bluetooth Dongle is Optional Sold Separately) : Electronics
Amazon.com: 2 x 12 Subwoofer 1200W 2" 4 Ohm DVC Pro Car Audio American Bass XO-1244 : Electronics
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