A hpothetical question. Take a good SACD player ie Linn Unidisk/ Sony 9000 etc. and then couple it with a nice Bryston 5 channel power amp and some high quality speakers. Now, in the middle we'll put a Denon 3803 using the pre-outs and play a CD with the signal going to the amp via coax. Then, we'll swap the Denon for an AV32R. Same connections. We will hear a difference right? I've heard it myself so I know this is the case. Now put the 3803 back in and connect the SACD player via the 5.1 analogues and set up the amp to bypass the signal right through to the power amp. Play a good multi channel SACD disk. Then swap for the AV32R again using the 5.1 bypass. Will we hear a difference now? I mean is the Tag bypass discernably better than those on cheaper amps? I ask as I have tried this and can't hear a difference but I have not done it back to back and wondered if others have done back to back bypass tests?