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Massive Audio GTX64 – 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 250 Watt RMS, 500w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually
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Amazon.com: DS18 PRO-EXL104MB Loudspeaker - 10", Midrange, 1000W Max, 500W RMS, 4 Ohms, Ferrite Magnet - for The Peple Who Live and Breathe Car Audio (1 Speaker) : Everything Else
Harmony Audio (2 HA-R104 Sub Rhythm Series 10" 500W Peak Subwoofer Bundle with HA-A400.1 Amplifier & Amp Kit : Electronics - Amazon.com
Amazon.com: Sound Town 18" 500W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-18120DR) : Musical Instruments