There seems to be a typo in the NAD section of the article.
"The
T777 V3 doesn’t have as many features as some of the other amplifiers on our list, but it does boast a robust
seven-channel amplifier... "
"Of course, the T 777 V3 does have Dolby Atmos immersive sound processing which will allow you to
create a 5.1.2 system right out of the box or a 7.1.4 system with two additional two-channel amplifier..."
Looking at the photo on the back I can only see 9 channels of binding posts, though it isn't high resolution and is a little blurry. So I think that with the two additional amplifier channels you might be able to do 5.1.4 or 7.1.2, but not 7.1.4. Unless I am missing something.
That's a shame, since they seem to be the only receiver that has Dirac. I want 7.1.4 for Atmos though.