Monitor Audio Gold series

Did you actually have overt sibilance like SSSSSSS even Ch overly emphasized because your cable TV was not gounded properly?. I have cable to my Internet only as I have a satellite TV system. It is hard to imagine that could get through as I have Monster Cable filters on my TV & computer. Then there is all the power conditoners I tried prior to just finding some Audioprism quietlines & installed a Oyaide plug made the most difference along with some beefy power cords from Black Sand.None of these changes or experiments made any difference to the sibilance.

Presupposing there are some grounding issues ,say with my cable system feeding my computer modem….how would one go about detecting & eliminating this problem? The whole sibilance thing seem to come upon me suddenly so it may be some "upgrades” to the amplifiers the cable company did about that time is feeding some sort of noise into my AC system.

That would really be crazy making with all the changes I have made to get rid of this problem, however if it were something like that ,it sure would be gratifying to be rid of it. In the interim I ended up vastly improving my system overall. Your tips on this would be most welcomed.

Bill

1 MA speakers... check out the Platinum line... just saw some inkling about them in the Stereophile CES 07 show report... online now.

2 Ground loop issues. Esiest way to remove the ground loop is to remove the ground. Usually lifting the ground at the service pole (where ALL Sat & cable grounds wind up) is easiest. Not the safest... but the easiest. Check out the threads here on Ground loop issues.

Conditioning devices as a rule do not address it. Cables, gear, etc... don't either.

finding the origin of the problem, if it's not the CATV or SAT, is simple. Just start unplugging. What I did was just turn off everything BUT the power to the audio system at the breaker box then just turn one on and listen... another person will make this effort easier. taking a few minutes in between engaging breakers is good too. When the sibalence returns, Violin! You'll know what circuit it's on. Just see what is plugged in on that line. I'd bet it's either PC, telephone gear, a battery charger for a cell phone, or a Sat/CATV receiver. If it's still present with all the breakers off but the stereo... go outside and lift the ground. Sometimes you'll have to give it a few minutes to clear out completely... but it'll be better right off.

there are transformers that go inline onto the cable itself and are cheap which do work... if i can remeber the name I'll post the link... it'smade by Dayton and can be had from parts express.. $10 each. Worked for me... or you can lift the ground from your gear using the little cheater plugs which prevent the ground on the power cord from making contact in the receptacle. Lots of ways to address this problem.

Los of things introduce junk into the houses power. PCs, modems, wall wart (transformers, like on PC accessories, speakers, scanners etc.).

I lifted the ground on my cable then had some issues later on...with it reloading info and such. I got a fiber optic system entirely. Phone, web, & TV. Verizon FIOS. they added a battery back up... that was the first thing I disconnected. they are big trouble in a good stereo system. I know. I had a uninterupted power supply once before. Never again... well, unless it's full wave.

oh, and I got rid of all my Monster wires except some M1000 ICs which I use on a TV. I can't give them away. But mine are like six or seven years old. they are probably better these days most likely.

Good luck

Thanks ,I will start to toy around with some of those ways & means of elimating the ground.There are enough things to do that something should show up along the way,if there is a grounding issues that is.

Thanks again

Bill

no problem, good luck.

Regarding sibilance ...

I have GS 10s, Arcam FMJ CD/Pre/Monoblocs.

When I tried Nordost Red Dawn ( rev II ) speaker cables,
the sibilance was painful. Bottom of the line Kimber speaker
cables, or better, 14/2 romex ( solid copper electrical wire ),
and the tweeters are smooth as silk, very articulate.

I went back and forth 20 times -- how could $800 speaker
cables sound significantly worse than romex, at 12 cents a foot?!
Well, they did.