My guess is that your projector doesn't display 1080p. Therein may lie the answer.
The manual says on page 31:
I quoted this section of the manual earlier on the thread to someone else. I am sorry if you missed it.
Your first impression comments remind me of my experience with owning a "pre-owned" Jaguar some years ago, before the company was bought out. My late son was a Jaguar master technician who owned his own repair shop in MD. My wife wanted to respect his love for Jags by buying a used one from a neighbor. The Jag didn't have the bells and whistles of the then-current upper end models from Detroit which perhaps affected sales. It wasn't until we rode in it that we really appreciated what the Jag reputation is all about.
So it is with NAD. As the review on Audioholics noted:
If a feature rich AVR floats your boat, I'd suggest returning the T 747. It's audio performance that NADs are known for.
I respectfully disagree. My projector is an Epson PowerLite Home Cinema 1080UB. It has a native resolution of 1920x1080 pixels and supports all resolutions. 1080p60 and 1080p48 being the native ones. If you give it 1080p24 it will double the frames and show it as 1080p48. It won't convert it using telecine conversion to 60Hz. In addition to that, it actually shows in the menu what the exact input signal properties are. I have verified this by using pixel accurate grid patterns from my iMac to the projector and every pixel was displayed.
So, when I connected my PS3 directly to the projector and displayed the input signal properties while playing a Bluray movie, it showed 1080p 23.90 Hz, 12-bit color.
Without changing anything else, but just introducing the T747 in between, made the projector show the input signal properties as 1080p 60Hz, 10-bit color.
Now, unlike many other bluray players, PS3 has an auto mode for 24Hz as well as a force mode. I used force mode - so I know the PS3 is outputting 24Hz and yet the T747 converts the signal.
I also disagree with bells and whistles comment. I am with you in the spirit of limiting bells and whistles and in fact that is what I want, but that is not what the T747 is doing.
What I would have wanted is a pure pass through of video. NAD proudly says that they have a pure analog pass through of audio without any DSP or A/D - D/A. They should have that philosophy for video also where they pass through the input to the output with absolutely no interference. But that is not what is happening. In fact the manual states that in auto mode, the T747 will use the best resolution that the display is capable of - not retain what is coming in. I proved this another way. I limited the output from my PS3 to 720p. The T747 still displayed 1080p60 when I pressed the DISP button on the remote. The DISP display shows what the NAD is outputting to the display not what is coming in.
So, we have a fixed output from T747 with source materials of varying resolution and so the scaler on the T747 is constantly engaged. I ran into almost the same issue in 2007 with a HK AVR 247 and that is why I returned it. I did not realize this kind of limitation is still an issue now.
I wonder how NAD's higher end receivers handle this.
Right now - I have to choose auto and watch everything in 1080p60 which I don't mind - but I do watch a lot of bluray movies and made sure my projector and PS3 are both capable of handling 24Hz. So, everytime I watch a movie, I will have to change the setting in T747 to force 24Hz output. Also, even then I don't know what kind of processing the T747 is applying to the video - including black/white clipping etc.