GigaFoil v4 Inline Ethernet Filter

[mep]

Mark, this review is somewhat helpful in explaining:

https://www.audiostream.com/content/djm-electronics-gigafoilv4-–-inline-ethernet-filter

P.S. I am nearing the end of my search for the ultimate power supply for the Nucleus/Nucleus+ and GigaFoil. I have a customer who has been very helpful for the past several months buying and trying a variety of PSU’s. I think we’ve found the winner. Stay tuned.


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I read that review Mike, but I didn't get much out of it besides his enthusiasm for the filter. I would like a simple answer from someone like Ken who says the GigaFoil removes all of the noise to explain what noise they are actually hearing from their system that disappears when they install the GigaFoil. All I'm saying is that I'm not hearing any noise in my digital signal path.

 

[Mike]

I read that review Mike, but I didn't get much out of it besides his enthusiasm for the filter. I would like a simple answer from someone like Ken who says the GigaFoil removes all of the noise to explain what noise they are actually hearing from their system that disappears when they install the GigaFoil. All I'm saying is that I'm not hearing any noise in my digital signal path.

What I heard: black black black backgrounds. Better microdetail retrieval. Better instrument separation.

Although the home built Ethernet -> Fiber -> Ethernet did similar things, we didn’t like what it did in the upper registers. It sounded brighter to me.

The GigaFoil gave us all the benefits without any drawbacks.

But to answer your question, it’s not removing noise like a hum or buzzing, it’s just cleaning up the data stream - much like a power conditioner would or even a Sigma NR power cord.

What we haven’t tested is whether the input Ethernet cable really matters.

Here’s our current mess of a testing ground:

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[CPP]

What I heard: black black black backgrounds. Better microdetail retrieval. Better instrument separation.

Although the home built Ethernet -> Fiber -> Ethernet did similar things, we didn’t like what it did in the upper registers. It sounded brighter to me.

The GigaFoil gave us all the benefits without any drawbacks.

But to answer your question, it’s not removing noise like a hum or buzzing, it’s just cleaning up the data stream - much like a power conditioner would or even a Sigma NR power cord.

What we haven’t tested is whether the input Ethernet cable really matters.

Here’s our current mess of a testing ground:

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Now if you could get your hands on a Ethernet Analyzer you could really test the device.

 

[Mike]

Now if you could get your hands on a Ethernet Analyzer you could really test the device.

Oooh...I like that idea. You have a link to a good one?


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[mep]

What I heard: black black black backgrounds. Better microdetail retrieval. Better instrument separation.

Although the home built Ethernet -> Fiber -> Ethernet did similar things, we didn’t like what it did in the upper registers. It sounded brighter to me.

The GigaFoil gave us all the benefits without any drawbacks.

But to answer your question, it’s not removing noise like a hum or buzzing, it’s just cleaning up the data stream - much like a power conditioner would or even a Sigma NR power cord.

What we haven’t tested is whether the input Ethernet cable really matters.



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So the noise that is being removed is not noise you can hear coming from your speakers? Are you using shielded or unshielded Ethernet cables? The whole purpose I thought of the GigaFoil is to remove whatever EMI/RFI artifacts that are riding on the signal from the Ethernet cable. What I don't understand is if your listening environment is generating enough EMI/RFI that you need a filter, what happens to the Ethernet cable on the output side of the filter? If your EMI/RFI levels are high in your room, I would think the Ethernet cable on the output side of the filter would suffer the same issues as the cable feeding the input.

 

[Mike]

So the noise that is being removed is not noise you can hear coming from your speakers? Are you using shielded or unshielded Ethernet cables? The whole purpose I thought of the GigaFoil is to remove whatever EMI/RFI artifacts that are riding on the signal from the Ethernet cable. What I don't understand is if your listening environment is generating enough EMI/RFI that you need a filter, what happens to the Ethernet cable on the output side of the filter? If your EMI/RFI levels are high in your room, I would think the Ethernet cable on the output side of the filter would suffer the same issues as the cable feeding the input.

Excellent question. The noise is coming from all the other devices on the network: NAS, Router, switch, etc. they all share the same network and just like with power they create noise.


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[Alpinist]

What I heard: black black black backgrounds. Better microdetail retrieval. Better instrument separation.

Although the home built Ethernet -> Fiber -> Ethernet did similar things, we didn’t like what it did in the upper registers. It sounded brighter to me.

The GigaFoil gave us all the benefits without any drawbacks.

But to answer your question, it’s not removing noise like a hum or buzzing, it’s just cleaning up the data stream - much like a power conditioner would or even a Sigma NR power cord.

What we haven’t tested is whether the input Ethernet cable really matters.

Here’s our current mess of a testing ground:

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The song Octopus’ Garden comes to mind.

Ken

 

[mep]

Excellent question. The noise is coming from all the other devices on the network: NAS, Router, switch, etc. they all share the same network and just like with power they create noise.


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What is the Ethernet cable coming from the output of the filter plugged into?

 

[Mike]

What is the Ethernet cable coming from the output of the filter plugged into?

In my case - wall outlet, which is a CAT7 in wall which runs to a switch, which is connected to the Router.


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[CPP]

Oooh...I like that idea. You have a link to a good one?


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A few Flukes, DSP 4x00 for one,
Aukua MGA2510 Analyzer ( the cable guy had one of these (portable) last week when he worked on my daughters Ethernet

If wasn't retired I had access to all kinds of test gear and people that knew how to use them.

 

[Kingrex]

Meters are nice. In another thread I noted how I used a nice power analyzer and scope to check my power. Well over $1000 in tools. They might show you something, but they don't tell you why its there, what frequency its at. It just says noise is there and leaves you to determine what is the cause and how to resolve it. That is the hard part.

 

[mep]

In my case - wall outlet, which is a CAT7 in wall which runs to a switch, which is connected to the Router.


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so the output of the filter is plugged into a wall jack that has CAT 7 cable which then runs to a switch which is connected to a router. Then all of your other Ethernet cables are plugged into your router that feed your server and your DAC? Where is your NAS drives located? Are they after the output of the filter as well?

 

[Mike]

so the output of the filter is plugged into a wall jack that has CAT 7 cable which then runs to a switch which is connected to a router. Then all of your other Ethernet cables are plugged into your router that feed your server and your DAC? Where is your NAS drives located? Are they after the output of the filter as well?

On the switch. Same switch.


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[mep]

On the switch. Same switch.


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So all of the devices that generate EMI/RFI and that are feeding your server and DAC come after the filter which leaves all of those Ethernet cables susceptible to the EMI/RFI being generated by those devices unless I'm missing something.

 

[CPP]

Meters are nice. In another thread I noted how I used a nice power analyzer and scope to check my power. Well over $1000 in tools. They might show you something, but they don't tell you why its there, what frequency its at. It just says noise is there and leaves you to determine what is the cause and how to resolve it. That is the hard part.

All depends on the test equipment

 

[Kingrex]

All depends on the test equipment

This is what the head of the engineering department for Schneider Electric (Square D) uses in the field to test VFD, Softstarts etc. Can anyone here interpret what is going on and tell me the best filter to use to resolve the humming from my amps and speakers?

My interpretation of the sine wave from reading the Pure Power website is I have RF interference.

 

[nonesup]

So all of the devices that generate EMI/RFI and that are feeding your server and DAC come after the filter which leaves all of those Ethernet cables susceptible to the EMI/RFI being generated by those devices unless I'm missing something.

As I understand it, it is:

ROUTER ----- SWITCH (he is connected to Nucleus + and NAS) ---- GIGAFOIL ---- MSB

 

[mep]

As I understand it, it is:

ROUTER ----- SWITCH (he is connected to Nucleus + and NAS) ---- GIGAFOIL ---- MSB

Not the way I understand it. His gigafoil feeds the wall outlet that then feeds his router and switch.

 

[nonesup]

If Mike has it that way (and I think not) he would have no logic at all.
The filter must be the last link in the chain before the MSB, to eliminate all (or as many as possible) the artifacts originated by NAS, Nucleus, Router, Switch .....

 

[Alpinist]

My GigaFoilv4 Ethernet Filter is the LAST device before my Select II DAC. There is one high quality and well insulated Cat 8 Ethernet Cable that connects them. I believe Mike’s network is the same in this regard.

Ken