I posted this on best prepro's thread but I thought I should post it here as well since people lurking on this thread are curious..
For those interested, I've spent some considerable time with my new AVR600 with both movies and music and I must say I'm very impressed so far. I'm currently using the preouts with my Theta Dreadnaught II as the AV888 pre is not available yet.
I've spent years looking for ultimate audio performance and I can honestly say I finally found it with the Arcam. Prior to the Arcam I've owned the Lexicon MC1, Anthem AVM20, Anthem D1, D2, Adcom GTP888, Parsound Halo C2 and spent some considerable time with the Integra 9.8 (didn't own it) and as some of you may know, I recently owned the Cary 11a. The AVR600 significantly outperformed all these units in every way.
As I prefer a true prepro solution, I will more than likely trade up for the AV888 pre when it's finally released. Arcam really created something special with the AVR600. I'm assuming the AV888 should perform as well or possibly better (if that's possible) but we shall see.
If anyone has the means to audition one at your local dealer, I highly recommend it.