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In Reply to: Re: They worry about it now. posted by Dan Banquer on January 19, 2007 at 10:00:08:
Good grounding reduces hum, yes, but not necessarily RF.
Follow Ups:
RF noise travels on the AC safety earth wiring. Audio equipment with casework attached to the AC safety earth contains deliberate or accidental (or both) pathways that couple RF noise to the audio signal. Awareness is the first step towards understanding.
< < Audio equipment with casework attached to the AC safety earth contains deliberate or accidental (or both) pathways that couple RF noise to the audio signal. > >That is my experience, too. That is why the Ayre gear uses double insulation -- so that we don't have to connect the case to the AC safety ground. Sounds much better that way.
So the rest of industrial electronics and scientific instrumentation
have it backwards? Or are you guys just victims of bad house wiring & coroded earth grounds?
ROTFLMAO
d.b.
Gee, Dan. It's easy to see why your products sounded so good and your company was so successful.
Answer the question Charles. Why does the rest of electronics not have the issues you and AL S. are having?
d.b.
Well, at least you stopped rolling on the floor. Maybe it will be easier to actually listen now. You should try it some time.
Still ROTFLMAO;
d.b.
Consumer audio is in the mess it's in. Mistaken attitudes and misinformation such as you have posted are in direct contradiction to what the rest of electronics already knows, and has known for many years.
I don't mean to be a snot here Ozzie, but that's the way it is.
d.b.
Try this link; http://www.audioholics.com/techtips/audioprinciples/interconnects/bulletproofingsysteminterf.php
Sorry to get you in Dutch with Charles. I don't disagree that proper AC grounding can reduce RF. Can! But it may not necessarily do so, as the original posters implied, by using expensive AC cables. Now to me, that may qualify as missinformation. Not by the poster, but by the manufacturers of the cables. How many of those high dollar cables are bought to resolve a problem that simply does not exist? Or that if the power supply and cabinent grounding of the component was properly done, incoming RF would be pretty much a non issue as was mentioned above as well? It sounds like Charles' grounding scheme works quite well. At a much lesser cost than an 1800 dollar cable.
< < It sounds like Charles' grounding scheme works quite well. At a much lesser cost than an 1800 dollar cable. > >Sorry to disappoint, but everything makes a difference. And the differences are cumulative. Using a good power cord helps the sound even when using a good grounding scheme.
In other words, I haven't found a grounding scheme that negates the need for good sounding power cords. Just like nobody has yet made a DAC that sounds the same with all CD transports.
On the other hand, there isn't always a direct correlation between price and performance. You might be able to find a nice sounding power cord for less than $1800.
< < It sounds like Charles' grounding scheme works quite well. At a much lesser cost than an 1800 dollar cable. > >Sorry to disappoint, but everything makes a difference. And the differences are cumulative. Using a good power cord helps the sound even when using a good grounding scheme.
--- Care to qualify that statement? When there is no problem with RF in the first place for one's application, why bother with any AC power cord tweak? Because they look cool and will impress one's friends with the latest purchase? I bought a Digital AC cable for my Sony 777 just to see if it would make a difference. It made no difference whatsoever to the sound. I guess either I don't have externally generated RF or the chokes on the AC input are doing their intended job. Luck or good engineering? I'll take either as I am results oriented.
In other words, I haven't found a grounding scheme that negates the need for good sounding power cords. Just like nobody has yet made a DAC that sounds the same with all CD transports.
--- Why not just include one in with your player in the first place? You can use my response below if you want. I just can't believe that any combination of L & C can cost as much as these cables do. The claims of cryogenic treatments are yet another story altogether.
On the other hand, there isn't always a direct correlation between price and performance. You might be able to find a nice sounding power cord for less than $1800.
--- While I will not dispute that different quantities of L & C may negate RF at different frequencies, it seems that review claims always seem to be made that the higher dollar AC cables sounds better. Hmmm?
< < I bought a Digital AC cable for my Sony 777 just to see if it would make a difference. It made no difference whatsoever to the sound. > >If you can't hear the difference, count your blessings and go buy a few more CD's with the money you saved.
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