Earlier in the year I replaced my ageing Marantz PM44 MKIISE with the above amp. In sound quality and power terms, it was a step up (never mention the benefit of Dolby Digital). Recently I upgraded my Project phono stage with a Gram Slee 2 - my Rega P3 and CD63-mkII KI now sound indistinguishable (when comparing The The - Mind Bomb Vinyl and CD) using the same cable (Chord Co - Siren) In fact I have discovered that my CD63 sounds very similar whether connected via digital (Cambride Audio coaxial) or analogue. My Yamaha DVD (DVD-S540) player in fact sounds very close to my CD63 when connected digitally I would guess that I have reached the sound quality limit of the Amp as far as analgoue inputs go. I can only guess that the amp converts all analogue signals to digital for any processing then back to analogue for power amplification - hence why my DVD in digital sounds very close to the CD63KI in analogue! My question is that if I connected a decent power amp to the front left and right pre outs, would analogue sources skip all the processing and go straight to the pre outs for amplification? Alternatively if I purchased a decent pre amp to the front left and right of the 6.1 inputs would the processing be skipped and the signal sent straight to the amps? I don't see the point of attaching an integrated to the tape loop since it will still be processed - and the processing is the limiting factor here - why go CD DAC to amp ADC to amp DAC to amp ADC!!! I just can't find enough information on how this amp works! Perhaps I could get a decent integrated and use a speaker switch to share my Kefs with both amps!