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Extreme Snake Oil

VintageFlanker said:
View attachment 432067View attachment 432068
www.ecoustics.com

English Electric's EE1 Plus Ethernet Noise Isolator is For Those Suffering From a Case of the Jitters?

At £600, the EE1 Plus is designed to reduce interference and noise on wired networks, but do you really need it?
www.ecoustics.com www.ecoustics.com
Click to expand...

Once again where there are industries and applications where certain things may matter, the audio-market "solution" ignores the plethora of proven technologies already developed.

I wonder how many people realize/know that the Ethernet signal lines are already have galvanic isolation? This was done to accommodate long runs by virtually eliminating voltage potentials between different circuit panels.

Ironically, if the 'shields' of the two RJ45 jacks are internally connected it's possible to introduce undesirable current flow between the interconnected devices. Thou it's unlikely to manifest itself as an audible artifact, ala RCA 60 Hz hum.
 
Roland68 said:
Wouldn't you be able to achieve the same thing with 2 converters on fiber optic for around €50-60?
With which you could also bridge several 100m without interference?
Click to expand...
Sure. But it's unlikely to have an issue requiring anything in a typical home or office environment in the first place.

Not discussing surge/EFT/lightning protection mind you.
 
The thorough and comprehensive design of the Ethernet system is so well thought out and executed. This is the reason that it has been scaled up to a global wide area network. The robust execution of Ethernet at a data and hardware level must be one of the most impressive engineering solutions ever created. Then we have a group of also-rans who claim that they can improve the system, just to favor audio????? It's interesting to see that many of these ineffective ethernet audio devices receive scathing comments (where they are allowed) when reviewers write laughable shill articles about them. Almost universally, there are individuals who are engaged with ethernet at a professional level who deride these doo-dads as being complete fantasy. Like clockwork, the believers croak "trust your ears!" and write paragraphs deriding people with far more knowledge than themselves, preferring to believe the advertising copy. Maybe this is a good thing. Maybe we should regard it as "financial Darwinism" where the easily duped rubes will have less money to continue procreating!
 
Roland68 said:
Wouldn't you be able to achieve the same thing with 2 converters on fiber optic for around €50-60?
With which you could also bridge several 100m without interference?
Click to expand...
Here's the schematic of a typical ethernet interface:

7ec52c18fa9a91a350a60f80cf4adfca2bc471fa_2_1028x1000.jpeg


No direct connection - everything is transformer coupled. Galvanic isolation is built-in.
 
Punter said:
The thorough and comprehensive design of the Ethernet system is so well thought out and executed. This is the reason that it has been scaled up to a global wide area network. The robust execution of Ethernet at a data and hardware level must be one of the most impressive engineering solutions ever created. Then we have a group of also-rans who claim that they can improve the system, just to favor audio????? It's interesting to see that many of these ineffective ethernet audio devices receive scathing comments (where they are allowed) when reviewers write laughable shill articles about them. Almost universally, there are individuals who are engaged with ethernet at a professional level who deride these doo-dads as being complete fantasy. Like clockwork, the believers croak "trust your ears!" and write paragraphs deriding people with far more knowledge than themselves, preferring to believe the advertising copy. Maybe this is a good thing. Maybe we should regard it as "financial Darwinism" where the easily duped rubes will have less money to continue procreating!
Click to expand...
This is true with just about any technology used in audio. Other industries have advanced the state of the art far beyond what's seen in audio. Not just in technology but understanding as well.

Hmm..

I think the only exception are records/record players. But only because other industries left those technologies long ago.
My second thought was vacuum tubes, but they are still used in other areas: RF and extreme high power.

On second thought, I bet the the audio quality of NASA's golden records on Voyager has better sonic quality.
Most people would guess it's due to being gold (plated). But in reality, its due to the Uranium-238 cover! :cool:
 
The data collection should be done on both CDs before the edge trimming procedure is done on one of them and the difference between the two, if any, noted and saved. Then trim one of the CDs with the device and again note and save the differences between the trimmed and untrimmed CDs, if any, after the trimming. Compare the two difference files and see what residue, if any is left over. My guess is that the residue will be the same, within limits of measurement accuracy.
 
egellings said:
The data collection should be done on both CDs before the edge trimming procedure is done on one of them and the difference between the two, if any, noted and saved. Then trim one of the CDs with the device and again note and save the differences between the trimmed and untrimmed CDs, if any, after the trimming. Compare the two difference files and see what residue, if any is left over. My guess is that the residue will be the same, within limits of measurement accuracy.
Click to expand...
If you watch that's what he does. They're identical before, and once one is trimmed, it's still identical.

The idea is ridiculous I don't see there's anywhere further to go. I wouldn't have even bothered testing it. Like me testing to see if I can jump over my house.
 
egellings said:
The data collection should be done on both CDs before the edge trimming procedure is done on one of them and the difference between the two, if any, noted and saved. Then trim one of the CDs with the device and again note and save the differences between the trimmed and untrimmed CDs, if any, after the trimming. Compare the two difference files and see what residue, if any is left over. My guess is that the residue will be the same, within limits of measurement accuracy.
Click to expand...
Didn’t these toys originally come with the green pen?
 
Hmmmm. And did the shavers arise to clean it off....................
 
IIRC the green pen was 1980s. Profitable scams , like the demagnetiser, came later. I think the popularity of the green pen just created awareness that digital devotees were able and willing to believe in and pay for nonsense.

You can still find people who insist the green pen did improve the sound.
 
Mart68 said:
IIRC the green pen was 1980s. Profitable scams , like the demagnetiser, came later. I think the popularity of the green pen just created awareness that digital devotees were able and willing to believe in and pay for nonsense.

You can still find people who insist the green pen did improve the sound.
Click to expand...

There was also green plastic bands to instead of pens so it was reversible, *cough* don t ask how I know this :D
 
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