Guydebord: I can say with authority (I have broken in 2 AMR DP777 units) that if you do not have about 300 hours on them what you are describing is EXACTLY one of the characteristics I experienced. Before full run-in the DP777 almost had a mono character and left to right realization was not very good; hence instrument placement was off. Once it got past the 230 hour mark all that was an after-though.
With that said, the unit is sublime, I have literally sat and stared at it because the way it makes music is uncanny. I thought my Bidat and the Dynavox Dynastation made beautiful music and they do..., but quite frankly the AMR makes them sound dated.
I actually used the stopwatch function on my iphone and my mac mini with pure music to take note of the changes in sound at various points in time. I have broken 2 of these units in. One for a buddy and then my own personal unit.
I said it before and I'll say it again, it is better than my buddies USD ~ $38K analog front end and that is NO hyperbole. I have listened to that system multiple times and each time it fails to deliver the musicality and sheer enjoyment of the AMR.
Also note that the line stage portion of the AMR HAS to be engaged in order for it to break in along with the dac and power supply.