Here are my actual measurements and corrections in ARC
View attachment 61769
That's great supplementary info! Since you do have the help from RC, you most likely can fix the high frequency harshness, at least to some extent if not completely.
Just that with Anthem ARC Genesis, your option is a little more limited than if it is Audyssey or Dirac Live.
Those predicted FR curves (the green ones) are just predicted, not
"actual" measurements for the FR after ARCG calibration.
Still, the red curves, that does represent the "actual" as measured by the mic, show the potential issue you are dealing with.
It looks like you should try the following:
- Increase the HF roll off setting, probably try it with the maximum setting first, such as 0.5 from whatever it is now just to hear the effects and then go from there.
- Increase the maximum correction frequency to 20 K, or 15 K from the default 5 K for the effects to take place.
Again, with Anthem, there are limited tweaks you can do to the target curves, but you should still be able to tame the HF a little. Other than that, I would still suggest you don't toe in the speakers at all.
Also, Anthem does keep the room gain in the bass range, but it seems to apply no deep bass boost by default. If you do use REW, I would suggest you take your own measurements instead of relying on the ARC generated FR graphs. If you do see a suck out in the deep bass, you can then add deep bass, or just do it regardless. Try 3.5 to start, and center frequency 50 Hz. If you feel you have enough bass then obviously just leave it alone, especially if you don't have REW to guide you.
The reason I mention the bass range is that if it is too thin in your room, it might contribute to the feeling of having too much in the high frequency range because the overall response is not on the neutral/balance side of the equation.