Can sibilance be eliminated?

Marakanetz says it all. Until excess sibilance is eliminated at the source it will continue to plague the musical reproduction chain.

I would start with a recording of good singers recorded by good enginners,say Maria Callas or Deitrich Fisher Discau(spelling) or the Robert Shaw Chorale,to see how much of it is the other recordings you are playing and how much of it is your system.
I suspect the recordings are the culprits but can't say for sure since I've not heard your system

Great question. The thing bothering me now is whether or not being a stereo nut has made me sensitive to normal speech sibilance that most sane people never pay attention to.
Other thing, it seems like percieved sibilance peaks and wanes with things like sinus allergies and headcolds. But maybe I am nuts. Good luck. I have decided to live with it for now and enjoy the good side of detail in playback, maybe one day I'll attack it with more tubes and dollars.

I think the original question has to do with too much sibilance & although there are some very poorly recorded tracks that accentuate sibilance, I find it's not usually an issue with the recording.

I've found that some silver cables are a little on the bright side which may accentuate the sibilance which can be the cause of some concern.