Well I've just "downgraded" to the AVM 50 and I have to say I like the sound better. It's very hard to make an apple to apple comparison as I'm going from an AVR with mixed use of the preamp outputs to a processor with fully external amps. I'm also using Neo6 for 2 channel audio.
While the AVM 50 is a gigantic PITA to use and configure, the audio quality is much better and it gives me back a pure analog input, allowing me to bring my Mytek DAC back into the mix.

