NVX QBSTA with Belva Amplifier Wiring Kit. NVX SDTK20. 900W Peak (300W RMS) 11" Quick Bass Spare Tire Amplified Subwoofer with Belva 8 Gauge Amp Kit. 900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box with Built-in Amp and Remote Bass Knob.
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