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Bought 4 pieces, and just started exterimenting, without opening the boxes. First impressions:
- one piece on top of each of CD player, autoformer-based pre, line conditioner that feeds CDP, and isolation transformer that sits in front of the power line that feeds CDP - beneficial;
- second piece on top of CDP or pre - detrimental compared to 1 piece;
- piece on top of amplifier - detrimental (not that it belongs there anyway, for the reasons of ventilation);
- piece on top of isolation transformer that sits in front of the power line that feeds amplifier - detrimental.
Follow Ups:
I have also tried ERS cloth, but used it in specific places INSIDE of the components. For example, between the power supply circuitry and the rest of the audio circuitry. It did the most good there, since that is one of the most likely spots for RFI/EMI to be radiated. Using it just above a circuit board was not the same. Don't know why, but the sound was noticeably brither, but not in a good way. Be careful when using this product, as it is semi-conductive, and could cause trouble if it comes in contact with circuits. This product will do little good sitting atop a component, since the metal cover of the component already is a shield all by itself. It would possibly be useful over the vents of components, but of course, that cannot be recommended due to ventilation issues. In that case, I have placed the cloth inside of the ventilation slots, but with a space between the cloth and the slot to aid in the ventilation process. The cloth also absorbs RFI/EMI as well as reflecting it.
CONSIDER THE SOURCE
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I jammed the paper everywhere I could fit, my system blew up...twice!
You are clearly OCD on this subject. And why did you continue down the same path after you "blew up" your system???
Get a clue, dude...
-RW-
-RW-
and once wasn't enough, you did it TWICE!
Congratulations!
"One this was all Black Plasma and Imagination" - Michael McClure
ERS employs a carbon fiber mesh layer layered into the paper. Carbon fiber is conductive. The website specifically warns about not allowing the egdes to contact live uninsulated surfaces.
Looking at your photo, I am not surprised your components blew up.
You could have simply applied a layer of tape over the edges as an insulator and avoided such issues.
Stu
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like any tweak, a basic understanding of what it actually does is critical in understanding its application.
ERS absorbs $RFI. Specs for its absorption are available on the Stillpoints website. Where one would expect the greatest improvement in application, digital gear, one must be certain to understand the nature of many modern digital designs. Many current designs, particularly those which are typically warm sounding stock, employ a roll off circuit built into the the output stages. Regas are a good example of this, although I have seem simlar circuits in even the $10K Esoteric CD players and even the older Conrad Johnson designs. If you apply ERS to these designs, while the lower frequency range will improve in clarity, the top end will appear to be rolled off. The key is to lift one end of the the roll off circuit which is typically a simple capacitor and resister in series across the positive output to ground.
Also one must carefully analyze the circuit physical layout and apply the ERS to areas which are known RFI generators. Like any tweak indiscriminate application can be detrimental.
Stu
a
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Dynobots Audio
Music is the Bridge between Heaven and Earth - 音楽は天国と地球のかけ橋
a
to one car now.
Nt
of ERS inside components. Especially with digital gear, even a couple of inch long piece may need to be moved back and forth to find the right balance. The stuff definitely does *something*, but overdone, it emulates what happens when you wrap your interconnect with way too much shielding.
Guess it's well down on my list of priorities at the moment, but I always thought that using strips of this material cut to the same dimension as the interior height of a component's case and arranging the strip to "shield" the power supply from the audio circuitry might be an interesting experiment.
Do you have any plans to use ERS paper on the inside of a component?
SF
Will get to that over the weekend.
I'll probably sacrifice 1 piece for cuts, and compare using a piece simply taped inside to the top cover, versus "shielding" the power supply.
success using it. Either seemed to not make any difference OR "muted" things to an extent that bugged me.
I suppose I couldn't get the balance right.
Ended up taping a piece to the inside of our circuit breaker panel though I'm not sure that made much difference either.
Glad you had success with it in your system.I may try experimenting with it again some day if I can find the patience.
"One this was all Black Plasma and Imagination" - Michael McClure
... my picture.
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