NAD T973 vs NAD 275BEE

I'm trying to decide whether to buy a NAD 7 channel amp vs keeping my NAD 275 BEE 2 channel. It seems obvious to me a 7 channel would be better for music or home entertainment but i was also thinking maybe buying another 275BEE . In the end, which would be better?

You might give more information, as I am not understanding how you would be using a 7 channel amp vs two 275BEE's.
You might want to do some research on the T-series in terms of their reliability. I had some repairs done, and the shop got so many of the T's that they eventually refused to work on them.