I have been playing with my new T775 for the last week and love it. The remote is simple and the setup is straight forward.
But, I was having some issues where 1080p, going through the NAD T775, was dropping out. My cables are capable of 1080p and are only 1m long. I hooked my source, PS3, directly up to my TV and it worked okay.
Anyways, after talking with NAD, long story short, a firmware update fixed the problem. It seems any firmware version < 1.07 -may- have issues passing 1080p video. To check your firmware version on the NAD press and hold the "Source<" and "Source>" front panel keys. This shows the MCU, DSP, UART, and Serial number. After my dealer updated the firmware to version 1.12, problem was solved, 1080p passes flawlessly now. Cool Beans!