English Electric EE1

Those Chord folk are keeping busy…

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‘Multiple units provide progressive improvements’

Of course they do.



‘Passive design converts unwanted frequencies to heat’

I can see an issue with combining these two points

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Looking at the ad, I suspect the suggestion of multiple units would apply to however many streaming cables there are in your system.

Don’t know how much they are but I’d be keen to try one (or three :smile:)

Or perhaps multiple noise isolators could be used between noisy household internet devices and the switch/router.

That got me excited! The original Lightning fighter/interceptor jet of the 1960s was made by a company called English Electric.

Wonder how much it costs. Similar Ethernet isolation devices can be had online for a few pounds up to a few hundred (usually described as “medical grade”).

I’ve seen it on a Japanese vendor www & its priced at ¥63,800 which is aprx £348.54 (GBP) or €404.16 (EURO)

At around £350 that’s hardly big money in terms of audiophile accessories. Having being very pleased indeed with what the EE8 switch does in our system I’m keen to see what these can bring to the party.

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I’ve tried a few ethernet noise reducers, the expecsive ones aimed at the audio market & a medical grade type. None did anything to improve the audble SQ, one degraded SQ.
Whatever, I will keep an open mind & see what the marketplace responce is before being tempted.

The Japanese www says … “EE1” uses proprietary IC chips arranged in series to absorb noise, convert it into heat, and dissipate it. Only pure music/video information is transmitted.
At the same time, Chord Company’s noise absorption technology is also introduced to significantly reduce noise in a wide range of bands.
The main body material is die-cast aluminum and is designed to be both lightweight and electromagnetic shielding. The connection direction is indicated by an arrow printed on the case.
EE1 can be used in various places, but it is especially effective between a hub and a network player…

Another www says both ports are galvanically isolated


All Ethernet ports have galnanic isolation via transformer, so that just sounds like padding words!


My thoughts exactly Iain, I believe these marketeers words of wonderment are indicative of the volume of snake oil.



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People have all kinds of opinions without having heard it. Maybe you should listen first and then have an opinion.

If you don’t like these kinds of “accessories”, then simply don’t waste any time on it.

Maybe it has an effect, maybe it doesn’t. Maybe the effect is worth the money in your view, maybe not.

I have heard these kind of isolators before and so far they did not impress me. For less money you can buy a bog standard switch that has a greater effect. But maybe the EE1 will prove it will do the same or better. Or maybe it won’t. Until I have heard it, or read a lot of reviews all pointing towards a single conclusion, I will avoid having an opinion about it.


I’m planning to bin my ethernet cables and instead try a hundred or so piggybacked EE1’s between streamer & router. Will report back.


Where would the fun in that be?

I think people were more commenting on the advert with its fluffy wording. Interesting to see if the product makes any difference

I always find it curious that some people sneer at some audiophile accessories such as this one, yet embrace others with open arms.

“Anything I don’t personally endorse is rubbish and snake oil for the gullible. Anything I do endorse is money well spent”.

Sounds like another way of making money?

Not tried the EE1 but I have tried the cheapo version purchased on the big river called a D-Loc. I believe it uses the same principles as the Chord version? After a pretty long trial and some major changes to the system I ended up marginally preferring things without the D-Loc in place. However, I have a couple of mates with moderate systems who still think it’s the best and cheapest upgrade they’ve made for quite a while.