Yes it seems Chord is also not the first to produce these kinds of devices. If you google for “acoustic revive” you will find another brand from Japan that sells roughly the same kind with “quartz”, albeit for a bit less money.
Sounds like a PITA.
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We have for now three members having tested and bought the Chord GA, finding it giving a worthwhile upgrade.
How many more do we need to declare it’s not bollocks? 
It reminded me the EE8 past switch thread. There were same opposite discussions. But I feel now the reputation of the Chord switch is established.
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I am passing my demo RJ45 & 5 Pin Din to a friend fellow NAIM owner this morning so he can try these in his system - he is not on this forum but I more than trust his views
this will also give me an oppourtunity to go back to my system with out the GroundARAY and report back over the weekend which I will do
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It feels a bit like GroundHOG day (pun intended), but the number of positive reports doesn’t matter.
Per Stereophile:
Alter your focus—your attention—even a little, and what you hear will change, even if nothing has changed in what you’re listening to. Using brain imaging, scientists have determined that such changes in perception are real, in the sense that they alter signals in the brain’s hearing centers—primitive, pre-cognitive parts. You don’t just think you hear it, you do hear it—even if it does nothing to the electrons in your wires or the pressure waves in your listening room.
As long as people are putting these devices in their chains and actively listen for any effect, a percentage or perhaps even a majority of them will hear an effect. That doesn’t prove that the device actually does anything.
If the device actually does something, it’s effects can only be very minor, based on how the laws of physics work.
This equally applies to the EE8 switch or to the Biostabil 2000:
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Can’t we just be happy that people are happy with what they decide to do with their systems? Why the endless drama?
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Thanks for sharing @litemotiv - the human brain is a fascinating instrument. I can find very little scientific evidence or reliable testing (ABX type testing) that many of these tweaks/gadgets/cables improve the sound quality. Doesn’t mean they don’t, just makes me sceptical that they do.
This leads me to speculate whether my brain goes the other way, so it actually cancels out any improvement in sound because I don’t believe there should be an improvement. So, a form of confirmation bias, but confirming my belief that they’re isn’t an improvement (when there might be) rather than confirming an improvement (when there isn’t). 
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This is all very true - but we fall then on the same old argument - if it can’t be measured it’s rubbish VS subjective reaction.
And, much as I own that people, me included, can be as gullible as pelicans, if placebo’s ‘work’, then…?
@Mike_S Because it’s a fascinating topic that it’s interesting to discuss and hear other’s opinions on…
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Then what is the purpose of this thread? Or these forums in general?
I’m not sure i follow…
Because the thread is about a specific product, not a dissertation on blind testing.
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Because it’s the topic of the thread, “brilliant or bollocks”? Also it’s obviously a fascinating topic, else there wouldn’t be thread after thread about it in various guises
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To really determine if the product works and is worth the money we cannot only rely on anecdotal endorsement by a few Naim members…
It’s not fascinating. Every time there is a discussion about cables etc it ends in this pointless willy waving. It’s tedious.
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You, not we.
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My purpose in starting the thread was simply to find out if these things make a difference. On the face of it they looked to me highly dubious, but I have an open mind and thought it worth finding out if people heard a difference.
I don’t think there is any value whatsoever in your continuing use of ‘science’ to say that they cannot work or it’s all in the mind. What would be genuinely useful is if you tried them and reported back. Then you truly could speak with authority.
So far, three people have thrived them and reported an improvement, which must say something.
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There wouldn’t be a discussion if it wasn’t fascinating. I agree that the outcome is every time not satisfying, but both “sides” play a part in this, the “my ears are perfect and I don’t care what the evidence of 100 years of science says” faction just as much.
There’s also the option of not reading it
No it doesn’t say anything, that the whole point.
But i give up, which should make most of you happy.
Happy spending!
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