POLK AUDIO Polk PSW10e Active Subwoofer, 10 Inch Powered Subwoofer, Power Port Technology, Up to 100 Watts, Big Bass in Compact Design, Easy Setup with Home Theater Systems - Black : Amazon.co.uk:
Mackie Thump 115S 15 Inch 1400W Powered Subwoofer | guitarguitar
SXP118 1x18" Direct Radiating Compact Powered Subwoofer 2000W Blk | Martin Audio | Leisuretec
Alpine PWD-X5 4.1 Channel Digital Sound Processor (DSP) with Powered Subwoofer
Audioengine S8 Powered Subwoofer Speaker - 250W 8-inch Home Subwoofer with Built-in Amplifier (Black) : Amazon.co.uk: Electronics & Photo
SpeakerCraft SDSi-8 Subwoofer 8 inches 400W
Fenton SHFS12B 12" Active Subwoofer Powered Bass Speaker, Front-Firing with Phase Control and Crossover for Home Theatre, Hi-Fi Sound System Sub, 30cm Woofer, Black : Amazon.co.uk: Electronics & Photo