Guys, I have recently noticed some kind of disturbing S's overstressing in vocals of all kind of music I listen too, sometimes more sometimes less. I have heard this phenomena is called Sibilance. It sounds like the singer is kind of wistling while saying words with "s" on them. I like the highs in my system a lot, but this... I don't think I like this. Any idea if this is normal??!!! I also posted this at another message board, and somebody suggested could be my room (walls windows, etc), or interconnects...

My system is:
RB-1080
RC-1070
RCD-1072
Axiom M60TI
Pair of SilverCats interconnects
10G Bi-wire shotgun SignalCable speaker wire
PureAV PF60 power console


Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3