DS18 GEN-X212LD Bass Package 2 x GEN-X124D 12" Subwoofers In a Ported Box 1800 Watts
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Recoil SW10P Car Audio 10 Inch Active Subwoofer with Passive Radiator, Built-in 600W Amplifier, Include Remote Subwoofer Control and 8AWG Complete Wiring Kits - Walmart.com
Amazon.com: DS18 ZXI8.2D High Excursion 8" Car Audio Subwoofer 1200W Watts DVC 2-Ohms Quad Stacked Magnets. High Performance Bass for Vehicle Stereo Sound System (1 Subwoofer) : Electronics