sibilence....any cures out there?

Yep. Toe in is cheap and easy and doesn't involve any sort of Voodoo.

Diana Krall has naturally sibilant singing style. If you don't hear Diana's sibilance the system may not be resolving enough.

swampdog, Jylee is on to something. What kind of music do you listen to? Some sibilance is natural. On rock and pop recordings I hear a lot of processing of female vocals. See Adele for recent example. WTF they do that for?

All Copper Cables !! A very simple but effective way to address this issue. Mostly sibilance is not a function of equipments unless they are horribly mismatched. It is more of a creation of associated accessories like Cables, bad power, isolation techniques etc. If you could start simple copper cables from Mogami it will tell you if it is a step in the right direction. Mogami makes very balanced sounding cables at sold at throw away prices so it will not cost you much. I had faced a similar issue long time back and it was my speaker cable at fault.

Jylee - It is not that I hear no sibilance. It is that it is no longer to the degree which bothers me. My system is resolving, just not hyper so. I miss no details of the music. I also agree with Pani - I prefer well designed copper cables which is what I ended up with - wonderful for the music and helped cure overly sibilant sound. Resolution vs. hyper critical sound is surely a battle (at least with gear which costs less than five figures, or perhaps all gear?), but one which can be won.