Okay im pretty sold on the SVS 20-39CS. I wonder what power I should bother ordering. the 20-39CS powered w/ the Samsung 700 amp. Just the sub?? and look into alternative power? or the PCi w/ built in amp. Honestly I have never dealt with Home Theater Preamps etc. I have a Sony STR-DB940 Receiver. Right now Im using a Acoustics Research 12" powered sub connected to the LFE on this sony. Im trying to get the best sound for the money. I noticed the PCi is much cheaper than the Powered CS, whats the difference?? I also have seen a few mentions of different amps that may sound better??? for cheaper price overall.