Hour 24 Update
It wont be a full 24 till 30 minutes

but here ya go....
BTW...in light of a recent thread on vague discriptive audio terms I have updated my "out of the box" impressions in this thread to get rid of the terms "musical" and "colored"

I was actually listening to it till about 3:30 am last night and I am no night owl. By midnight the improvement in sound was so noticable on a few CDs that I watched all three hours of the Bruce Springsteen Live in NYC DVD using the Senn590s out of the Perreaux.
This is a concert I have listened to over 100 times. I own it on CD, SACD, LP, DVD ...even VHS from when it first aired on HBO so I am intimately familiar with the tracks. (Hopeless Bruce Tramp in case you had not noticed

It has never sounded better than it did last night using this amp with these phones and this source. The guitars have never sounded more realistic, blazing and sweet. Hard to decribe, but this familiar music kept surprising me many times last night. On group backing vocals the individual voices of Nils, Patti, Steve and Clarence were all easily picked out of the mix by my ears. And this was the stereo PCM track just over the phones...no crossfeed or dolby processing...just the music.
Honestly, I do not know if it is the new source, cans or amp...but whatever is happening, I really like what I am hearing at this point.
I also listened to the amp a bit with my Sony MDR7506s and it sounded so nice (rich bass...deep and precise) it made me wish I still had my MDR3000s still here to plug in. I am going to have Tom Hankins' pair here when they get back from Sony for a bit, so I will be able to try them in this setup with this amp...I have high hopes for that mating.
The sound of the amp has opened up considerably overnight. It's like the amp gnomes came in overnight and moved all the musicians chairs another foot away from each other. More transparencey, I hear each instrument individually in complicated passages. Bass is less recessed and has come forward more.
Thats the report from Yonkers so far. Got Dire Straits Brothers in Arms on right now.
Sean...Your amp should hit your place tomorrow right? What a fun weekend you have ahead of you! BTW, your PM box is full.
John