My NOS arrived today. First impressions in the 15 minutes or so I have had to listen to it are that the bass is tighter than my Rotel 970BX, and there is more detail. I think the output voltage must be a bit lower because it doesnt sound as loud at the same volume on my amp. I'm hearing strands of music that I hadnt really noticed before.
A fuller review will be posted in the next few days.
I'm using the supplied power supply plug thing at the moment.