Comfynumb, what's the difference between a pre-pro vs a receiver with pre-amp mode (where all the amp section is turned off)? Shouldn't they have the same quality?
Reason I ask is because many of my clients move "backwards" from their Krell pre-pro (and alike) to Pioneer SC 57 and SC 68 run in pre-pro mode and use their power amps and/or monoblocks (some Mark Levinson, some Krell, some Classe)
It seems to me that buying an AVR and only using the preamp part of it is wasting money. Plus, I agree with comfynumb that a dedicated pre/pro might well have better parts internally, since the manufacturer doesn't have to fit or pay for power amplification in the same chassis. Then there's the issue of heat from the power amp section potentially shortening the life of the preamp components, though if it's class-D, that's not so much of an issue.