I know I'm late to this thread, but I thought I would just give my review of the C 700 having owned it for almost. two years now. The pros are that
- it's a very small form factor
- BluOS is good in general (except for when they do new releases, which are riddled w bugs and inevitably take some time to work out)
- the sound is good enough for a medium system in, say, a living room or for background listening.
The biggest thing to know is that NAD doesn't really seem to support it very well. I've had a couple issues with the C700 that support has just said,
"sorry. we recognize that doesn't work and we're not going to fix it." The most notable of this is the fact that if you have the display show your "presets" It does not show the icons. It just shows a blank. standard silly graphic. I also have an M10 and its beautiful when it shows you the presets in icon format. But when I talked to support, they said they just realized it doesn't work on the C700, and they have no plans to fix it on that product.
There are a couple other issues, like the fact that when you upgrade the software on the C700, it resets all your settings (which does not happen on some of the other NAD amps I have)
Another example is recently during an update, the screen is now set to its brightest setting, and you can't change it no matter what you do. This would of course lead to screen burnout.
The sense I get is that the C700 is not treated as well as other gear in the NAD line...even when it does not function as advertised.
So Caveat Emptor