I am not being critical of your ability to use a laptop and a mic. The fact that Denon’s own measurements matches yours is good The issue I am bringing to your attention is obvious, you have to review it under the conditions it is designed to be used. You can’t do that with just 2 speakers, OK?
No, it is not "OK." I just got done explaining all of this to you. Go watch that video. If you don't understand it, ask questions. If you understand it but disagree, come back with comprehensive research that I showed there why you don't want to test multichannel EQ systems in multi-channel.
But maybe you think I should do what other "reviewers" do. Play some movies through the AVR and write fiction about how said movie soundtrack sounded. I don't do stuf like that. Go and seek our those sources.
Finally, I have a separeate dedicated theater. If there ever was a need, I can test in there but there never has been. No company has asked for that either and that list includes some of the highest-end AV companies such as Trinnov, Storm, etc.
So don't keep bringing up these lay arguments. Go and fix the sound of your system. Measure what it is producing now and post that. You are the best example of how science and engineering can help you. You screwed up following online stuff you heard. Now is your chance to improve your system sound and instead are wasting time with all these complaining....