Hi
Setup is basically the same but you can now adjust the delay times down to 0.1cm instead of 10cm steps. There´s also additions to the THX Audio setup, Boundary Gain Compensation, if you select the option that your sub goes down to 20hz you lose the Sub Peak Limiter option (waste of time anyway IMO!). You now have to select how far your Surround Back speakers are from each other 0-0.3 meters etc. This is done in the THX Audio setup section as well.
Theres also Auto Surround Mode which remembers every setting you were last on, not just for digital sources but analogue as well, quite handy, saves faffing about.
The rest of the stuff is the new formats and their different settings, you can adjust PL2 - Music, centre width, dimension, panorama. DTS Neo - Music now has a centre width adjustment too.
The Auto Flag Detect Mode has now gone from the main setup menu and is now accessed via the individual surround modes, turn it off for Dolby or PL2 and it has a knock on effect for DTS etc.
We´re still stuck with Dolby Digital/DTS/PL2 etc grouped as one when you adjust the individual channel levels, do one, they all change
Thats about the only gripe.
THX can be engaged on every mode now - PL2, DTS Neo, Dolby etc Soundwise, the amp has improved for everything from music to movies. PL2 is superb.
Just one thing, you won´t be able to select THX Ultra 2 modes if you only have one Surround Back speaker.
Enjoy