I find this discussion of T758 V3 an interesting case of how bad something can measure and still sound good which I think is important since how something ultimately sounds is the point. If it sounds good to you, I don't think anyone has a problem with that (I know I don't). But a few random comments from my perspective...
-I have owned the T758 V3 for about 18 months. I really do like Dirac. However, I was curious how it would test, so I bought a second one (new with the updated board from safeandsoundhq.com, which by the way are great to deal with). I don't think there is any reason to think it was defective. In addition to
@amirm much more extensive testing, Sound and Vision also did their normal bench test which was also pretty poor it looks to me (
link). I also attached the Denon X7200 for comparison. I don't think there is any reason to think it was defective, it just measures really, really bad. You don't need a 40K receiver (is there such a thing) to perform pretty well.
-It is great that the poor measurements aren't audible to you. It has Dirac, has a lot of features etc. But I do take issue with comments that say this really poor measurements of both the DAC and the Amps aren't audible... to anyone, at any level. That is a pretty bold statement that I just think is way over the top. I wouldn't be surprised if quite a lot of people would be able to pick on on that noise/distortion caused at those levels. Those measurements are pretty crazy bad.. In my theater, it sounded good to me (I do not have golden ears by any means) at moderate levels but found that after a few minutes I would always have to back off the volume to around -15 despite wanting it louder. Never gave it much thought until after I saw the measurements. I also moved the unit from the theater to our living room (much noisier environment) and an untreated room, and again found it sounded fine with volume from -15 to -25 on the volume. So while it sounds great to you at all levels, it doesn't to me in my setup at louder volumes.
-To state "LOL told you so" ... Is that in reference to the award mentioned, or other users saying it sounds good and agree with you? Neither means anything (at least to me). It doesn't mean anything to me necessarily or and doesn't disprove the NAD T758 measured deficiencies. Nor does it it in any way show that these measured flaws aren't audible to others.
-For $1499 ($1000 off) you can now get an Arcam AVR390. I couldn't find a bench test for one but looking at their other models it seems they measure relatively well and don't have to deal with the issues of the T758 which will be an issue for some people.
Just a few thoughts from a soon to be former owner. YMMV of course. It is just a receiver, so I don't get worked up about things and am happy that you are enjoying it. Carry on