Thank you Ozz for correcting Chess about the sibilance issue and clapping - nothing to do with each-other. I mentioned clapping just an example of a simple test for room acoustics, and that's all I meant, just to illustrate the problems with my listening room.
I posted the sibilance issue in Club Rotel as well, and I got many responses. It makes more and more sense to blame my room acoustics. I like my M60s and would probably keep purchasing Axiom when I build my HT. Again, Ozz, I didn't mean to scare anybody off with the sibilance issue, I am sure that I would experience the same with other nice, accurate speakers similar to Axioms.
And, BTW, I totally agree with some of the comments made on JBLs.
