Sibilance how do I get rid of it?


Hello
I am currently experincing a problem with sibilance in my system,I must admit I know that unless I set up a overly dampened ( lack of Hi's ) set up, I'm almost always going to have some degree of siblance,I listen to mass produced commercial cd's so I know that this is atleast 40% of my problem , and my listening room 26'x14'x8' is relatively live,,lanolium floors..no dampening,,etc,,
But somewhere in the back of my mind I hear "you need to do careful system matching,
My system consisits of:
Cal Aria MkIII CDP
Conrad Johnson Pv10a Pre
& Conrad Johnson PV 14L Pre
Llano A100 SS Amplifier
Dynaudio Contour 1.3 2 way's "GLORIOUS Midrange and Presence"
JPS Labs superconductor FX Ic's
Tara labs Time and Space with TFA Return speaker cables
Transparent Power Plus Power cord &
MIT run of the mil powercord on the Llano power amp
I have no power conditioning whatsoever except some hospital grade junction boxes in which I have the CDP & Pre's hooked up-AMp straight to the wall.
Now I have experimented with various IC's and speaker cable Discovery,Cardas,Transparent..etc
I don't want to address this problem thru cable choice
I have changed the tubes in the CDP as well as the PreAmps
the Jps labs provides me with the transparency speed and extended Hi frequencies,,and resolution, but with noticable
sibilance could it be the Ac line conditioning or lack of it that is introducing the stridency and graininess to the sound? if so where can I start?
What brand power cables offfer the best shielding or get's the GRUNGE out? I've heard good things about coincident
I knwo that I should ( and AM in the process of)addressing the room itself carpet is in order and some accoustic paneling to kill the early reflections,should I do this first? then get the ac conditioning? has anyone had any experience with Marigo Powercords, shuyanta, Coincident etc.
Please offer me your suggestions
braab8

Showing 5 responses by bob_bundus

AC line conditioning can go a long way toward allevieting sibilance issues in my experience. I use the Chang Lighspeed products, a 2500 for source components & a 9900 amp for (guess what) the amps. A 6400 ISO or a 9600 can do it all for you since you're not running large watts. Yes I also use upgrade AC cords & a dedicated AC line.
I don't agree with the timeclock theory. Noisy power is due to many possible reasons, not necessarily load-related. The only way to determine if line conditioning will help is to try it, using *decent* equipment (not the lowest budget cheapest thing that you can find).
I must agree 150% with Stehno's experiences above; very nicely described as well. Certainly I experienced the very same things when I performed essentially the same experiments several years ago, but with different equipment.
that guy has absolutely NO idea what he's talking about---
but certainly we ALL know that by now
Hi Chuck I was skeptical too.
But having read so much here about the benefit I had to try it & they are SO right.
Not completely understanding something doesn't make it worthless; very few of us would even be driving automobiles if that were the case.