The TS-WX210A focuses on functionality and performance. Use this 20cm sub vertically or horizontally: it takes up a minimum amount of space in the boot or virtually disappears under a seat. A quality MOSFET 150 W amplifier provides powerful bass, while a cabinet-reinforcing aluminium die-cast heat sink is responsible for top sound performance, free of distortion. A wired remote control is included for easy gain, phase and LPF tuning. Specifications Size: 20cm Max Music Power: 150W Nominal Output Power: 50W Frequency Response: 37Hz to 200Hz Sensitivity (1W/1m): 102dB Impedence: - Dimensions (W x H x D): 250mm x 118mm x 265mm Condition: In working condition.