Cat, you might have something there; however, I have my HT with M22's/QS4s, Sony CC & 2 Velo 10" subs calibrated with the Audyssey in my Denon AVR in a medium sized, irregularly shaped room. It sounds just fine to me & certainly not bright nor fatiguing by any means.

My 2 audio-only systems, one with M2s/EP-400 & the other with M3s are run just flat. Again not overly bright to me in my setting.

Once a myth or rumour gets started in the age of the net, it's impossible to quash it & the herd piles on. I see the same about the horns in Klipsches, but during my demos of them, I never found them to be as harsh or fatiguing as some people accuse them of being.

Maybe it's because I've been around screeching jet engines all my life. Each to his own I guess...

TAM