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Amazon.com: Pyle 5 Inch Woofer Driver - Upgraded 200 Watt Peak High Performance Mid-Bass Mid-Range Car Speaker 450Hz - 7kHz Frequency Response 15 Oz Magnet Structure 8 Ohm w/ 92dB and Paper
Amazon.com: Skar Audio EVL-8 D4 8" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: PRV AUDIO 6MB200 v2 6.5 Inch Speakers Midbass Woofer 8 Ohm, 100 Watts RMS, 200 Watts Program Power, 93.5 dB 1.5 in Voice Coil for Small Custom Enclosures Pro Car Audio System (Single) : Musical Instruments
Amazon.com: Timpano 10" Sub D4 1000 Watts Max Power Dual 4 Ohm, 10 Inch Car Subwoofer 14 mm Xmax, TPT-T1000-10 D4, 2.4 in Voice Coil, Deep Low Tones Sub Woofer for Car