Thanks for the video. It does make sense conceptually that a separate pre/pro would have better signal integrity. Without all the electronics crammed into one box and the high current there should be at least be marginally less distortion. For me though, I like the idea of separates, because the amplifier seems like the component I would replace the least, right up there with a good set of speakers.It's easy to think that way, but apparently it's not the case. I watched Daily HiFi's 4 day old YouTube video on the subject:
Also, Youthman didn't hear a difference when he hooked up an external amplifier to his SR8012, but when he switched to the AV7705 he certainly did. Much better channel separation!
Video processing on the other hand, falls out of favor every half decade or so, and it would be nice to just replace that without also replacing the amp. However, it seems like there is no financial benefit from doing so. It just seems odd that the AV7706 is missing the massive power supply and the amp that the SR7015 has, and yet they cost the same, without any upgrades to the other electronics in the AV7706.