GUSTARD DAC-R26 Balanced Decoder R2R+1Bit Dual Native Decoding Music Bridge

Jan 12, 2023 at 5:40 PM Post #3,601 of 9,992
You need to connect the "clean," FMC directly to the R26 with a ethernet cable and the lights should work as the lights you need to work / operate as normal are related to data transmission.
Nope...
Here you are.. all connected
20230113_003206.jpg

20230113_003217.jpg

Still the fiber lights it's off and I don't have internet on the R26
 
Jan 12, 2023 at 5:57 PM Post #3,603 of 9,992
I don't want to sound ridiculous.Sometimes it's the little things
It happened to me on Saturday and it took me a while to figure it out 😇.
Did you connect the cable to the back of the router?
Yes to the extender..
 
Jan 12, 2023 at 6:03 PM Post #3,604 of 9,992
Yes to the extender..
You need the single strand cable.
NOT DOUBLE ENDED.
FiberCablesDirect - 3M OS2 LC LC Fiber Patch Cable | Simplex 9/125 LC to LC Singlemode Jumper - 3 Meter (9.84ft) | Length Options: 1-3M | single-strand smf smplx lc/lc 10gbase 1f yellow ofnr pvc lc-lc https://a.co/d/3kHUCwf
 

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Jan 12, 2023 at 6:13 PM Post #3,605 of 9,992
Nope...
Here you are.. all connected

Still the fiber lights it's off and I don't have internet on the R26
Something is not right on the internet side. One FMC is showing you are connected at 100 and the other is showing 1000 and without being there I can't tell you what the issue is but if I had to guess it is more about your internet setup then your FMC or how the internet is reaching your FMC to be more specific. I wish I could be more helpful but your problem appears to be more complicated.

This video should help you understand if you have your setup, fundamentally, setup correctly.

https://www.smallgreencomputer.com/collections/accessories/products/fiber-ethernet-converter-bundle
 
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Jan 12, 2023 at 6:29 PM Post #3,606 of 9,992
can u please send me links what to buy exactly from amazon or ebay to use Internet or DDC and i2s cable, I am a bit lost in all the tech talk, I use tidal from roon using an intel nuc

I would like to try a solution that avoids me buying a 5 meter ethernet cable as my home system is far away from my router and sockets

whatever is the better option please send me links of what to buy
It really depends on what you are trying to achieve. The first thing i'd recommend you do is wait the 200 hours until your dac is burned in and then decide where you want to go from there. Either the DAC will be good / great and you want to improve further, or maybe it's not for you.

To avoid the cables, the system i have achieves that (and it's listed in my signature), but there are other ways you can solve your challenges. My system consists of:

Google nest router (2 of these, one for the router, one for the hifi system. i also have some google nest points around the house to extend my wifi coverage but the points don't have an ethernet port, so get two routers to start). If you do this - you can plug one Google router into your home router, and plug the other router into the place where your hifisystem is and run a short ethernet cable from the second router into your Gustard DAC. Many people prefer the LAN input here (though some prefer using a DDC).

Another way you can do this if you don't want two extra routers in your house is to look at a Ifi Zen Stream or the newer Holy Audio Red. Here you only need one box - it will play all standard file types from any streaming service, and has only one drawback - the Zen is limited in terms of the higher file rates it will accept if you like to upsample your music. I personally prefer the nest solution as I upsample via Roon / HQ Player. If you don't do this or don't see yourself doing this - then you may be happy with a one box solution.

FMC convertor (these are being used to essentially remove noise/jitter that could be travelling along the ethernet line. The solution is here and there is lots of conversation on it in the previous pages if you want to know more. You don't need to do this to solve the cabling challenge you have. The router solution will solve the cabling challenge, the FMC may improve performance further. Just so you know, you can also use this solution with a 5 metre optical cable and you could run this straight from your router. This defeats your goal of getting away from the cable but fiber is better for long runs than ethernet is (doesn't pick up any noise) if you wanted to try this solution.

Both solutions are relatively inexpensive. The links provided are local links - you'll need to hunt down the right retailers for you.
 
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Jan 12, 2023 at 7:14 PM Post #3,607 of 9,992
You need the single strand cable.
NOT DOUBLE ENDED.
FiberCablesDirect - 3M OS2 LC LC Fiber Patch Cable | Simplex 9/125 LC to LC Singlemode Jumper - 3 Meter (9.84ft) | Length Options: 1-3M | single-strand smf smplx lc/lc 10gbase 1f yellow ofnr pvc lc-lc https://a.co/d/3kHUCwf
I have the multi mode modules not the single mode..
Check my sfp's.. has two pins
received_1679190522497473.jpeg
 
Jan 12, 2023 at 7:26 PM Post #3,608 of 9,992
@duffer5 Yes me too.Very much so,hehe.

Back to the FMC boxes.
I have some good news.
The coolest thing is that with the FMC boxes Audirvana 3.5 works under Windows 10 without problems and runs totally stable as Roon.
I'm surprised myself and of course it's good as an inveterate user. :ksc75smile:
The good thing is also that I can set exactly what I want in Audirvana 3.5 in the upsampling.
Here is a picture of it:
Audirvana 3.51.png



And the quality increase in sound has also grown again well with the Fmc boxes.And much better and Audirvana 3.5 typical.
The bass is much fuller, more powerful,more rich.
Mids/vocals on point with lots of flow, rhythm, great macrodynamics and good timing,rich timbre and good seperation of instruments.
Treble is sweetened with great low end, also accurate and on point.
Details are very well represented, the beat and timing are also very good.
The rest is smooth and mostly buttery in execution maybe a tick bright,less warm,but still good.


Roon:
As for the upsampling I still do not know where to set it exactly fix.
Relatively under device setup right below is all I could find so far.
Nevertheless Roon does what it wants.
It does not sample me on 32/96 as I want it but plays sometimes Mqa, then again Pcm 44.1 khz and so on.You can also hear it directly out.
It sounds generally not bad but is andersst.vorallem because of the constant switch in sampling, that bothers me.
Why? Because somehow you can't really lean back.
I miss the fundamental tone to lean back.Roon obviously can not.

The bass is a little less full in direct comparison to Audirvana 3.5.
The mids/vocals seem a bit more meek.(With Mqa, vocals can get under your skin very well than without Mqa) Audirvana brings much more character in for it somehow.
In some points i find Mids/vocals a bit harder on roon.Sometimes the Voice sounds to clinical and not smooth and rich. (Not so my personally taste)
The treble is also very good and a little less sweet and also harder I think.
Details are very well represented, the beat and timing are also very good here actually everything is right.
The rest is soft and less buttery soft rather harder, and again a delicate piece brighter than Audirvana which is also at the expense of heat, so more neutral, but still good.
The whole thing is amplified again when the R26 in the setting, Attenuation is OFF.

Here is the setup as I tested it today:
Gustard R 26 Soundsetup 1.jpg



The Attenuation function is and can be dangerous for headphones/speakers if you had it ON and opened the potentiometer on the amplifier.
UNCONDITIONALLY turn it back when you turn it OFF again.
I almost wrecked my Zmf Auteur because of this.

ATTENUATION causes when it is on the main gain takes back at the R26.
For this the poti must/can be turned up more.
I find when it is ON the details shine through a bit better and generally sounds a bit less harsh and softer and sounds more rich.
At the Feliks Euforia I am with a 300 ohm headphones in normal operation at 13 o'clock position.
This bothers me a bit it could have been a tick better adjusted but is now so.
On the other hand, it also causes that the headphones / speaker does not necessarily drive to full (hot) as long as you do not set anything in active mode to OFF.


The FMC bring the R26 totally in drive and I like what I hear under Audirvana 3.5.
Would not have thought that there for 100 $ / € again a good increase comes together.
Although the optical cable is quite cheap it does a very great job on Audirvana 3.5.For Roon I find it too hard for my taste.
I think with the Finisar it is again a zacken tastier like a well matured wine or whiskey.
Regarding the operation of the Fmc boxes on the powerbank.
I have a box connected to it on the "good side" and the power consumption is really minimal.it has been running for 4 h and still have full charge.
Am I personally satisfied? Yes totally,not only because I can continue to use my Audirvana 3.5.Also the sonic advantage has grown well.
Thanks goes to @duffer5 @Dandoudou and also all others where helped me to understand the technical and otherwise have contributed, thanks guys.:metal: :v: :gs1000smile:
 
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Jan 12, 2023 at 7:54 PM Post #3,609 of 9,992
@duffer5 Yes me too.Very much so,hehe.

Back to the FMC boxes.
I have some good news.
The coolest thing is that with the FMC boxes Audirvana 3.5 works without problems and runs totally stable as Roon.
I'm surprised myself and of course it's good as an inveterate user. :ksc75smile:
The good thing is also that I can set exactly what I want in Audirvana 3.5 in the upsampling.
Here is a picture of it:



And the quality increase in sound has also grown again well with the Fmc boxes.And much better and Audirvana 3.5 typical.
The bass is much fuller, more powerful,more rich.
Mids/vocals on point with lots of flow, rhythm, great macrodynamics and good timing,rich timbre and good seperation of instruments.
Treble is sweetened with great low end, also accurate and on point.
Details are very well represented, the beat and timing are also very good.
The rest is smooth and mostly buttery in execution maybe a tick bright,less warm,but still good.


Roon:
As for the upsampling I still do not know where to set it exactly fix.
Relatively under device setup right below is all I could find so far.
Nevertheless Roon does what it wants.
It does not sample me on 32/96 as I want it but plays sometimes Mqa, then again Pcm 44.1 khz and so on.You can also hear it directly out.
It sounds generally not bad but is andersst.vorallem because of the constant switch in sampling, that bothers me.
Why? Because somehow you can't really lean back.
I miss the fundamental tone to lean back.Roon obviously can not.

The bass is a little less full in direct comparison to Audirvana 3.5.
The mids/vocals seem a bit more meek.(With Mqa, vocals can get under your skin very well than without Mqa) Audirvana brings much more character in for it somehow.
In some points i find Mids/vocals a bit harder on roon.Sometimes the Voice sounds to clinical and not smooth and rich. (Not so my personally taste)
The treble is also very good and a little less sweet and also harder I think.
Details are very well represented, the beat and timing are also very good here actually everything is right.
The rest is soft and less buttery soft rather harder, and again a delicate piece brighter than Audirvana which is also at the expense of heat, so more neutral, but still good.
The whole thing is amplified again when the R26 in the setting, Attenuation is OFF.

Here is the setup as I tested it today:



The Attenuation function is and can be dangerous for headphones/speakers if you had it ON and opened the potentiometer on the amplifier.
UNCONDITIONALLY turn it back when you turn it OFF again.
I almost wrecked my Zmf Auteur because of this.

ATTENUATION causes when it is on the main gain takes back at the R26.
For this the poti must/can be turned up more.
I find when it is ON the details shine through a bit better and generally sounds a bit less harsh and softer and sounds more rich.
At the Feliks Euforia I am with a 300 ohm headphones in normal operation at 13 o'clock position.
This bothers me a bit it could have been a tick better adjusted but is now so.
On the other hand, it also causes that the headphones / speaker does not necessarily drive to full (hot) as long as you do not set anything in active mode to OFF.


The FMC bring the R26 totally in drive and I like what I hear under Audirvana 3.5.
Would not have thought that there for 100 $ / € again a good increase comes together.
Although the optical cable is quite cheap it does a very great job on Audirvana 3.5.For Roon I find it too hard for my taste.
I think with the Finisar it is again a zacken tastier like a well matured wine or whiskey.
Regarding the operation of the Fmc boxes on the powerbank.
I have a box connected to it on the "good side" and the power consumption is really minimal.it has been running for 4 h and still have full charge.
Am I personally satisfied? Yes totally,not only because I can continue to use my Audirvana 3.5.Also the sonic advantage has grown well.
Thanks goes to @duffer5 @Dandoudou and also all others where helped me to understand the technical and otherwise have contributed, thanks guys.:metal: :v: :gs1000smile:
FYI
If your digital volume control is “on”, your DSD is being converted to PCM.
 
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Jan 12, 2023 at 8:01 PM Post #3,610 of 9,992
The Attenuation function is and can be dangerous for headphones/speakers if you had it ON and opened the potentiometer on the amplifier.
UNCONDITIONALLY turn it back when you turn it OFF again.
I almost wrecked my Zmf Auteur because of this.

ATTENUATION causes when it is on the main gain takes back at the R26.
For this the poti must/can be turned up more.
I find when it is ON the details shine through a bit better and generally sounds a bit less harsh and softer and sounds more rich.
At the Feliks Euforia I am with a 300 ohm headphones in normal operation at 13 o'clock position.
This bothers me a bit it could have been a tick better adjusted but is now so.
On the other hand, it also causes that the headphones / speaker does not necessarily drive to full (hot) as long as you do not set anything in active mode to OFF.

Sounds like an accident waiting to happen - maybe you need to consider a dedicated preamp between gustard and your head fi amp and speaker amp?

FYI
If your attenuation is set to “on”, your DSD is being converted to PCM.
Did not realise this - this is good to know.

After bedding in the FMC, I did some retesting of all the upsampling options (Roon, HQ player, and PCM / DSD). i landed back at HQ player DSD 512 but with DSD direct off. DSD direct is slightly better for critical listening but i find it fatiguing when played for long periods. i have read somewhere that PCM conversions (which I understand happens with dsd direct off) can add 2nd order harmonics and these are slightly more pleasing to some ears. This might explain the fatigue (or it could just be my system).
 
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Jan 12, 2023 at 8:05 PM Post #3,611 of 9,992
I don't actually have DSD.
That's the funny thing, because even streaming providers don't offer it or hardly offer it any more.

I will have to test the settings a bit more to find the ideal sweet spot for me.
It obviously doesn't change anything on the R26 in the setup with Audirvana 3.5 under Lan.
So Attuation can also be switched to off and still runs stable, just as a note.

Roon honestly worries me a bit more, there the setting had just as little influence and still did what it wanted.
So a forced DSD to Pcm conversion had no influence on either player.

Another note for stereo is Attuation on, you definitely have more leeway on the poti and can operate it normally.
I tested it on the stereo a few minutes ago before getting ready for bed.
The R26 still needs playtime, hehe.
 
Jan 12, 2023 at 8:17 PM Post #3,612 of 9,992
I don't actually have DSD.
That's the funny thing, because even streaming providers don't offer it or hardly offer it any more.

I will have to test the settings a bit more to find the ideal sweet spot for me.
It obviously doesn't change anything on the R26 in the setup with Audirvana 3.5 under Lan.
So Attuation can also be switched to off and still runs stable, just as a note.

Roon honestly worries me a bit more, there the setting had just as little influence and still did what it wanted.
So a forced DSD to Pcm conversion had no influence on either player.

Another note for stereo is Attuation on, you definitely have more leeway on the poti and can operate it normally.
I tested it on the stereo a few minutes ago before getting ready for bed.
The R26 still needs playtime, hehe.
Some people like to convert all pcm to Dsd but if the digital volume control is “on” or DSD direct is “off”, the R26 will automatically convert to PCM.

Digital attenuation/volume control works by upsampling. It then uses the upsampled bits to provide dynamic range.
 
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Jan 12, 2023 at 10:26 PM Post #3,613 of 9,992
As I said, Hifigo offers a service where they take care of the import and only pay the standard price.

You should have a look at Amazon, sometimes they also take them over.
Concerning the return, they are usually quicker as soon as it is announced that you have brought the return in a post office.
So it could work.

I ordered the R26 and it should arrive on Saturday.
I listened to both units on youtube with the Ifi Hip Dac 2 and Imr R2 Red iem.
And I thought it had been clear.
The youtuber Thrambar or whatever his name is also puts a song in at the end to get an impression of it.
So what he's doing is not bad.
I run the IfI hip dac in my car and is sounds fantastic.
 
Jan 13, 2023 at 4:51 AM Post #3,615 of 9,992
@Ödezra

You might be right about the preamp, although I'm not a fan of adding another signal chain to the system.
But it can still be a workaround, and you might even have a finer adjustment to find the sweet spot.

From the attuation function, it seems a bit like a gain switch between low and high.
It is a pity that there is nothing in between to have a bit of both.
@sgreg1 I tried the Hip Dac in my car and the quality was good but it needed a sweet spot to find.

Attenuation:
I still have it activated and can turn the potentiometer on the amplifier up more sensitively.
Where I personally see problems would be when it is switched off and has a headphone amplifier with limited power, it could be tight.
The only thing I noticed in terms of sound is the harshness Off seems to be a bit harsher while On sounds more mellow.
What you could try in the Off position is to reduce the overall volume to get a similar result.

@Kamera
Thanks for the clarification.
I haven't quite understood the principle in my head yet.
I'm a bit confused at the moment because of all the impressions of the R26 and its potential.
But I will deal with it better together with the manual and test it.
 

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