Pioneer TS-WX210A 8-inch Active Underseat Subwoofer<br />http://www.amazon.co.uk/dp/B0036YEWHO?tag=jm15-21 <br />Feature<br />* Maximum power 150 W <br />* Frequency response 40 - 150 Hz <br />* Sensitivity (1W/1m) 101 dB <br />* IMPP composite cone woofer<br />Incl remote control For horizontal and vertical use<br />http://www.amazon.co.uk/dp/B0036YEWHO?tag=jm15-21