You are in a similar situation as I am. Although I'm a few steps ahead of you. With all the talk about the Nad t773 I was willing to give up a few features for a really good amp that was supposd to have this wonderful music sound
Well, I had one shipped to the house, hooked it up to my Axiom M80ti's, and all of a sudden my M80's sounded like a Bose system. NOT GOOD. All mids, little highs, and bass was almost non-existent. Of course, I was comparing directly to a tfm-15 Carver amp and Carver preamp that had been powering them up to this point. I was immediatly looking for a EQ to fix the thing.
Don't get me wrong. the NAD is nice, the remote is awesome, you can trim levels for each channel on the fly via buttons on the remote. It's very easy to use and setup. The woman doesn't have an issue with using it...that's good. Has a nice touch of quality to the "feel" of it. And it has external loops for each channel which u rarely see anymore. I can run my Axiom setup for hours, and it's not warm at all. but the sound of the thing is definitely warm.
don't fall for this nonsense of if you have "bright" speakers, get a "warm" amp. I'm learning the hard way that a majority of peoples opinions on what is warm or bright are going to confuse you so much that you'll never make sense of it. You really need to find a good store that sells good amps and start auditioning in your own home. The one I am dealing with sells NAD, Rotel, Marantz, Yamaha and a few others so I have a few other options. I'm now waiting for a yammie 4600 to arrive as you might have read in other threads. The yamaha is supposed to be "Bright" and if you believe the nonsense on avsforums and even here sometimes, my M80's are supposed to be bright as well....well, they are not. They are detailed, and clear, but not annoyingly bright at all. So, we'll see now if these two are too "bright". but, the way I look at it, that's what eq's and tone controls are for. And I would rather have the ability to have too much brightness/bass and just turn it down, then not enough and no way to do anything about it.
Any other questions about the NAD ask away. By the way, it's only 50lbs not 70. Technically it's like 52 or 53 lbs, and 60 shipped.
I must admit though, part of my mind says I'm nuts to try to replace a NAD with a Yamaha. But until I actually have the two to compare, I'll never know.