this could be fun indeed
OK - seriously, the poster really does need some good advice & not spend more money on voodoo
Why sibilance is in Krall and not in Krauss is due to the recording and your room acoustics, not your cables. You have an expensive & revealing system, especially the Vandies. Krall may have been closed-miked when it was recorded, to emphasize her breathy vocals, capturing her alluring midrange so it emphasizes S's. Alison may have been miked further back since she has a naturally hi pitched voice so the engineers didn't want to over-emphasize her hi frequencies. Your Vandies may be revealing these things that lower quality speakers may mask.
And this is made more apparent to your ears because of room acoustics. Do you have windows or lots of glass in the room? Is the floor hardwood or some other reflective surface? Room dimensions, large open room or stuffed with furniture and carpeting? Vaulted ceilings?
Have you ever looked at your room acoustics & room treatments, instead of spending gobs of money on exotic cables?
Sorry, but most of us do tried & true objective things to our systems to improve the sound. And do not accept that hi-priced exotic cables will audibly make any difference. We trust our ears and the science.
I've been there myself with hi-priced speaker cables - didn't do a thing but I wanted to believe they did
because I spent a lot of money on them.
Truth is there is no evidence, other than what the exotic cable companies advertise, that a cable will do what you are describing, PaperGuy. I have dealt with sibilance & excess beaming of female vocals for many years.
If you are not well-versed on room acoustics & acoustic treatments, do yourself a favor and do some reading on them.
There are numerous companies, ranging from in-house consultants to selling products for DIY'er, who are experts in this field and can help you with your problem. Here's just 3:http://www.realtraps.com/info.htmhttp://www.gikacoustics.com/http://www.readyacoustics.com/
I have personally dealt with Glenn at GIK. You can email or talk to their room consultant, Bryan Pape, describe your problem, room layout and he'll advise you what to try & their placement. In my case, some of his advice didn't even involve their products.
Ethan Winer at Real Traps is also tops in the field, very active in this and other forums and will give you "sound" advice. Ethan has articles, videos describing room issues like resonance, comb filtering, bass problems and you can hear for yourself the differences absorption & diffusion products make.
Here's a forum devoted to acoustics where you ask questions & experts like Ethan can provide recommendationshttp://www.audioasylum.com/forums/rives/bbs.html
You are free to spend a small fortune on cables & tricks & never come close to solving your problem. Instead, you can spend a whole lot less
money on some reasonably priced or down-right cheap wall panels & traps, place them in the right spots, maybe tweak your speaker locations, use an area rug in the right place and be a lot
happier with the results.....instead of chasing products which won't make any audible difference
. Anyone in the home theater & hi-end audio business knows the value of room treatments.
I spent 19 yrs chasing sibilance & extra reverb of hi-pitched female vocals with Magnepans in front of a large window. Bryan Pape led me to the answer this January - 2 judiciously placed diffusers & some additional corner traps. Female vocals like Patricia Barber when she hits the hi notes are now tolerable, clear with minimal resonance. They don't beam at me like they used to.Thousand dollar cables wouldn't have done squat