GigaFoil v4 Inline Ethernet Filter

SuperDave said:
King,
Any experience with Uptone Audio UltraCap 1.2 LPS or Paul Hynes SR4 & SR7?
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I'm using ultracap 1.0 LPS works fine after getting 2.1 to 2.5mm adapter and then set it to 5v. I am awaiting a more formal cable to convert 2.1 directly from LPS from Ghent audio gothem quad design cable. Alex C. from Uptone recommended them. They are closed till after chinese new year.
 
Elberoth said:
UltraCap 1.2 LPS is much better sounding than the iPower. I have compared them on my SOtM sMS-200 endpoint and W4S Recovery USB reclocker and the difference was well worth the $400 extra.

The UltraCap 1.2 LPS is based on the latest wonder chip - LT3045 Ultra Low Noise LDO Voltage Regulator, which has ultralow RMS noise @ <0.8µV and ultrahigh PSRR @ 76dB at 1MHz. Those are absolute class leading figures. Components of that quality were simply not available just a few years ago.

I'm about to order alternative voltage regulators (since the LPS-1.2 is in fact an advanced voltage regulator, and requires another PSU to drive it) based on same LT3045 chips:

http://www.ldovr.com/product-p/dxp-1a5s.htm

They are only $95 (plus say $49 for the ifi iPower to drive it), so 4x less than LPS-1.2.

I will be ordering two to drive my two Ethernet switches (a regular TP-Link and the new SotM switch that I just bought).
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Adam,
Thanks! Great information. I'll look into the product you mentioned.

Jim,
I'm curious how the SR7 would compare. It's pricey if I remember.

Dave
 
Anyone try an Optical Rendu. I don't have an ethernet renderer. Though I could kill 2 birds so to speak. Optical isolation and diversify the chores Roon performs.
 
Kingrex said:
Are you guys saying an inexpensive PS, followed by a good VR = a very good overall PS.
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Hi Rex,

The reason we upgrade to a high quality LPS is to eliminate noise on the ethernet line before it reaches the DAC. The GigaFoilv4 eliminates 99.99999999% of the noise on the line according to their specs. So, the upgrades that will overwhelmingly make the most difference in sound quality are at or after the ethernet filter. So, add a high quality LPS like the Keces P3 to power the GigaFoilv4 and the highest quality and best insulated ethernet cable between the GigaFoilv4 and the DAC. What’s done upstream of the GigaFoilv4 to reduce noise in terms of high end ethernet cables and LPS is belt and suspenders.

Best,
Ken
 
Anyone try 2 Gigafoils in their system...one on the renderer line and one on the core line?
 
Alpinist said:
Hi Rex,

The reason we upgrade to a high quality LPS is to eliminate noise on the ethernet line before it reaches the DAC. The GigaFoilv4 eliminates 99.99999999% of the noise on the line according to their specs. So, the upgrades that will overwhelmingly make the most difference in sound quality are at or after the ethernet filter. So, add a high quality LPS like the Keces P3 to power the GigaFoilv4 and the highest quality and best insulated ethernet cable between the GigaFoilv4 and the DAC. What’s done upstream of the GigaFoilv4 to reduce noise in terms of high end ethernet cables and LPS is belt and suspenders.


Best,
Ken
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How is the Ethernet noise being measured? And again, is it correct that you can't hear this Ethernet noise when you have your preamp turned up to where you would normally listen to your DAC and you unmute your preamp with no music playing?
 
Ken, I'm wondering if I can get an Ifi PS and put the regulator used in the LPS 1.2 behind it and get Ultracap quality sound.

Most decent PS I see are in the $800 and greater price range. $200 for 80% or more of they performance is interesting.
 
fascinating thread which i have been following with great interest.

as i understand it, the gigaFoil v4 is an opto-isolator. here, the basic underlying concept is to convert the incoming electrical signal to an optical signal which provides (almost) perfect galvanic isolation, thereby, filtering/removing all the accumulated upstream electrical noise from the signal. the "clean" optical signal is then converted back to an electrical signal before exiting the device. extrapolating this to the larger audio world...

1) the same principle would seem to be at work in optical s/pdif connections.

2) SFP optical network input of the type used in some lumin network players would seem to be the future.

just thinking out loud and i have no deep knowledge in this area -- very happy to be corrected.
 
Kingrex said:
Ken, I'm wondering if I can get an Ifi PS and put the regulator used in the LPS 1.2 behind it and get Ultracap quality sound.
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Do you mean using an IFI as an energizing suppy for the UpTone LPS 1.2,
or using the LT3045 regulator devices as used inside the LPS 1.2 ?

I have built a very nice semi-DIY LPSU for my digital audio using various regulator modules, to get hi end performance on the cheap.

The other question is what voltage and current do you need ?
 
aKnyght said:
the "clean" optical signal is then converted back to an electrical signal before exiting the device. extrapolating this to the larger audio world...

1) the same principle would seem to be at work in optical s/pdif connections.

2) SFP optical network input of the type used in some lumin network players would seem to be the future.
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1) Yes: Toslink would be free of signal noise, but in typical implementations it introduces more jitter due to conversion, because the clock is embedded inside the SPDIF signal (synchronous). With optical conversion of Ethernet, it is not sensitive to jitter because the network player will use its own clock (asynchronous).
 
wklie said:
1) Yes: Toslink would be free of signal noise, but in typical implementations it introduces more jitter, because the clock is embedded inside the SPDIF signal (synchronous). With optical conversion of Ethernet, it is not sensitive to jitter because the network player will use its own clock (asynchronous).
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thanks -- fortunately my dac will switch over to its internal clock, given a source signal of sufficient quality. so, in my case optical s/pdif is a good way eliminate upstream electrical noise in the signal... but, only up to 96kHz.

converting the parts of a LAN serving an audio system to fiber with routers/switches having SFP ports which then connect to components having SPF inputs or (less optimally) media converters would seem to be the future.

again, my knowledge is limited here.
 
I have a J cat Net Card Femto to a local router to the AQVOX SE Switch. This is connected to the GigaFoil V4 that I recieved yesterday. I can tell you the GigaFoil made a bigger difference than the AQVOX switch. This thing has transformed my digital. I am thrilled. I have not tried changing the power supply to the Gigafoil as I love the sound the way it is. I am using the best Wireworld through out. I even ordered Sablon cables and received them yesterday, thinking the brightness I was getting was do to the Wireworld. I have no desire to even try the Sablon. Jeff
 
Jeffy said:
I have a J cat Net Card Femto to a local router to the AQVOX SE Switch. This is connected to the GigaFoil V4 that I recieved yesterday. I can tell you the GigaFoil made a bigger difference than the AQVOX switch. This thing has transformed my digital. I am thrilled. I have not tried changing the power supply to the Gigafoil as I love the sound the way it is. I am using the best Wireworld through out. I even ordered Sablon cables and received them yesterday, thinking the brightness I was getting was do to the Wireworld. I have no desire to even try the Sablon. Jeff
Click to expand...

Why not try the Sablon since you have them?

My hunch is a new linear power supply will do you right!


Sent from my iPhone using Tapatalk Pro
 
Jeffy said:
I have a J cat Net Card Femto to a local router to the AQVOX SE Switch. This is connected to the GigaFoil V4 that I recieved yesterday. I can tell you the GigaFoil made a bigger difference than the AQVOX switch. This thing has transformed my digital. I am thrilled. I have not tried changing the power supply to the Gigafoil as I love the sound the way it is. I am using the best Wireworld through out. I even ordered Sablon cables and received them yesterday, thinking the brightness I was getting was do to the Wireworld. I have no desire to even try the Sablon. Jeff
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Hi Jeff,

Upgrade the power supply. The stock one isn’t very good. Even the $50 IFI power supply makes a substantial improvement. The Keces P3 will make even more of an improvement but costs more.

Ken
 
Jeffy said:
I have a J cat Net Card Femto to a local router to the AQVOX SE Switch. This is connected to the GigaFoil V4 that I recieved yesterday. I can tell you the GigaFoil made a bigger difference than the AQVOX switch. This thing has transformed my digital. I am thrilled. I have not tried changing the power supply to the Gigafoil as I love the sound the way it is. I am using the best Wireworld through out. I even ordered Sablon cables and received them yesterday, thinking the brightness I was getting was do to the Wireworld. I have no desire to even try the Sablon. Jeff
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Thank you Jeff for the info. Have you compared Gigafoil alone in the chain vs. Gigafoil + AQVOX SE in the chain?

I think the question a few of us wondering is if Gigafoil further improves a system that already has AQVOX SE.
 
I already told you that I have the aqvox and when I added the foil to the mix the sound improved. I think what your saying is can you go right from router to foil with same effects?
 
Jeffy said:
Ken what would be better for the foil Keces or Sbooster?
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Jeff,

I’ve not done a direct comparison. I know people that own the Keces P3 and the SBooster MkII. I’ve been told that both are excellent and significantly better than the IFI that I own.

Ken
 
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