I'm looking for a replacement amp to go with Pioneer 656a DVD and possibly Kef 2500 speakers. The issues is that it needs to be quiet small in height. I know a good amp needs space for the processor but can't seem to get a sensible answer out of dealers. Looking to pay around the £400 mark and have the usual DTS, Dolby, dual speaker outputs etc, can anyone help and put me out of my frustration???