Again ladies and gentlemen, the cheapest and best sibilance busters I ever heard were Mobile Spec Performance cheap as hell RCA cables. At fifteen bucks a pair you should really give them a try. Talk to Sean on this sight to get set up with a pair or two. Made my Perreaux sound much more euphonic. Remarkable but true one of the best kept secrets I've run into yet.
smoothing those sibilants...
I appreciate the feedback on the interconnect post I made a few days ago, and here is my next question: If I am attempting to smooth out the sound of a "low-end-of-the-high-end" system, reducing grain while retaining detail (and looking for a warmer more "classic tube sound"), where is my energy/$$$ best spent? Would it be the digital source itself, the interconnects, the input tubes, the speaker cables, or the speakers? Or something else? (System info can be seen under the post entitled "need interconnect advice", and there are some new interconnects on the way.)