Cerwin Vega VPSTX12 spare wheel subwoofer

This is a 12" subwoofer and amplifier in one, but it's compact enough to fit inside the spare wheel in the boot.

Power: 150W RMS@4ohm@100Hz, 600W Max
Bass Boost: 0-12dB
LPF Filter: 30-150Hz
Phase Switch: 0 or 180 degrees
PWM MOSFET Power Supply/Thermal Protection Circuit
Adjustable Input Sensitivity
Remote Subwoofer Control Included
RCA and High-Level Inputs
Passive Radiator Design
Slim 12” subwoofer
Remote Bass Knob Included