Thanks car audio centre these guys know their stuff I ordered 2 Kenwood ksc-sw11 active subwoofers late on Thursday eve and they arrived first thing Monday morning less than 2 working days later on standard free delivery Their price was the best online and significantly less than many of the competition The subwoofers sound great for their size if u set them up properly you can't expect such a small cone to accurately reproduce all frequencys from 35-150 htz so I set lpf at 120 htz on head unit and did final tweaks with the remote on subwoofer 100 htz is really bass frequency rather than sub frequencys so stay under this and the unit won't get flustered and will provide good bottom end fill on the sound and nice smooth deep sub bass Spend a bit of time setting up and reap the results Great service and great sound 1 very happy customer