Hi all, I have about £800 to spend on a new sub (of course less spent the better, but I want results!) I currently have an AE108S which just does not cut it. I want: 1. Deep gut wrenching, clean bass. 2. The occasional kick in the kidneys bass. Number 1 is the most important. Any suggestions? I have considered the Paradigm Servo 15, M&K VX125?, REL Strata III and the Yamaha 800Watt thingy. I really can't get demos in London so any of your feelings on these subs would be great. I included the Yamaha because it is so powerful, but I have heard little about it.