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

May 28, 2025 at 2:48 PM Post #9,932 of 9,965
So, they apparently dropped the Yin-Yang / wave design and went with the same as the X30...
 
May 28, 2025 at 4:35 PM Post #9,933 of 9,965
With the Gustard X30 being favored over the Holo May and Denefrips Pontus 15 by people that have had both at the same time, The R30 will have a big hill to climb to beat its older brother and remain valid in the marketplace. Especially if the pricing is higher than the X30
 
May 28, 2025 at 11:15 PM Post #9,934 of 9,965
Hopefully l may be help, l've had lots of experience with the LB GPS precision clock and the R26.

You shouldn't really be having any issues BNC connectors, but l have experienced some SMA to BNC adapters being not the correct length on the positive pin, also if they not tight on to the LB, that could cause the issue you have mentioned.

l've tried lots of cables, but l found TFLEX 405 to be the best.
l've recently upgraded to there LBE-1610 10MHZ clock... Expensive yes... but brings a big jump in sound, and lowering of noise,to the point your actually hearing details that were simply not apparent before.
My BNC jack has the same issue with all cables, I think it was bad quality control from Gustard, anyways I replaced the jack to SMA and no more EXT Error when connected, no more loud popping sounds send to speakers when there's a loose connection. It sounds so much better with external clock compare to R26 internal clock, so yeah I have doubt with Gustard claimed of high quality internal Femto clock.
That LBE-1610 spec looks like a serious piece of OCXO clock, is it more stable than TCXO of LBE-1420 when using without continous GPS signal? There's a video on youtube which shows newer Bodnar clocks need constant GPS signal for the clock to stay stable (Skip to 47.29 where he shows Bodnar without GPS signal)

Also thanks sendler2112 for confirmation
 
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May 29, 2025 at 2:12 AM Post #9,935 of 9,965
My BNC jack has the same issue with all cables, I think it was bad quality control from Gustard, anyways I replaced the jack to SMA and no more EXT Error when connected, no more loud popping sounds send to speakers when there's a loose connection. It sounds so much better with external clock compare to R26 internal clock, so yeah I have doubt with Gustard claimed of high quality internal Femto clock.
That LBE-1610 spec looks like a serious piece of OCXO clock, is it more stable than TCXO of LBE-1420 when using without continous GPS signal? There's a video on youtube which shows newer Bodnar clocks need constant GPS signal for the clock to stay stable (Skip to 47.29 where he shows Bodnar without GPS signal)

Also thanks sendler2112 for confirmation

The LBE 1610 doesn't use GPS, so it's more traditional in this respect. Trouble is my views are like anyone elses...Subjective. The difference is a vastly superior sound.
LB offer a 20 day return period, so you can try before you purchase.
 
May 29, 2025 at 3:07 AM Post #9,936 of 9,965
today...OFFICIAL render of GUSTARD R30
In Gus we trust
:crossed_fingers:
 
May 29, 2025 at 9:11 AM Post #9,937 of 9,965
With the Gustard X30 being favored over the Holo May and Denefrips Pontus 15 by people that have had both at the same time, The R30 will have a big hill to climb to beat its older brother and remain valid in the marketplace. Especially if the pricing is higher than the X30
It will, but you would always expect a DS DAC to have the edge over R2R in some areas and if that’s what you are after then the X30 is going to be difficult to beat, in addition the X30 is strong in areas that R2Rs are usually strong in. The May is the same from an R2R perspective, I.e strong in areas that R2Rs are often weak.

I suspect the R30 will just be an iterative step from the R26, but it wont exceed the X30 in all areas. As long as it keeps the fluid midrange, soundstage and timbre of the R26 whilst adding a bit more bass precision and perhaps resolution then it will be a must have for me….I live in hope.
 
May 29, 2025 at 9:33 AM Post #9,938 of 9,965
It will, but you would always expect a DS DAC to have the edge over R2R in some areas and if that’s what you are after then the X30 is going to be difficult to beat, in addition the X30 is strong in areas that R2Rs are usually strong in. The May is the same from an R2R perspective, I.e strong in areas that R2Rs are often weak.

I suspect the R30 will just be an iterative step from the R26, but it wont exceed the X30 in all areas. As long as it keeps the fluid midrange, soundstage and timbre of the R26 whilst adding a bit more bass precision and perhaps resolution then it will be a must have for me….I live in hope.
When I demoed Stax SR-X9000, it was with Gustard X30 as DAC. The soundstage was impressively deep, something I was quite surprised to note. Much of it may be caused by the X9000, but I'm sure the DAC also contributed to it, so I do resonate with your viewpoint.

-

Regarding the comparsion mentioned above to Pontus 15th, the price is only about two thirds of the X30, so not much to brag about. However, the Holo May is twice the price, so a more interesting comparison.
 
Jun 4, 2025 at 2:42 AM Post #9,939 of 9,965
Hi guys, I didn't find a suitable answer to my question so I will explain and hope for an answer. I have a Gustard R26. A month ago I bought a Holo Audio Red to try the II2 input on the Gustard. Everything sounded right except yesterday I found out that the left and right channels are inverted. I tried pin 3 set to on configuration or pin 2 and 3 set to on. No difference. Through USB connection the channels are correct. Can anyone help? Which is the correct pinout?
 
Jun 4, 2025 at 5:54 AM Post #9,940 of 9,965
Hi guys, I didn't find a suitable answer to my question so I will explain and hope for an answer. I have a Gustard R26. A month ago I bought a Holo Audio Red to try the II2 input on the Gustard. Everything sounded right except yesterday I found out that the left and right channels are inverted. I tried pin 3 set to on configuration or pin 2 and 3 set to on. No difference. Through USB connection the channels are correct. Can anyone help? Which is the correct pinout?
Hello,
you can invert the phase on the Gustard in the menu if this is the case.
But I have to ask, are you connected to the amplifier via Rca or Xlr?
Because one output on the Gustard is always inverted and must then be inverted, usually it is XLR that is affected.
It is also important to know whether the XLR cable is an EU or US cable, because these have a different pin assignment.
 
Jun 4, 2025 at 6:13 AM Post #9,942 of 9,965
Okay then try inverting the phase on the Dac, it may be that the phase of the preamp is inverted incorrectly.
Or the phase of the Dac can also be inverted incorrectly, which is also possible.
In fact, you always have to try something yourself.
If necessary, check the settings of the Red, where it is possible that the phase could be inverted via the software.
Similar to Roon, where you can also invert the phase by ticking a box.
 
Jun 4, 2025 at 6:13 AM Post #9,943 of 9,965
Hi guys, I didn't find a suitable answer to my question so I will explain and hope for an answer. I have a Gustard R26. A month ago I bought a Holo Audio Red to try the II2 input on the Gustard. Everything sounded right except yesterday I found out that the left and right channels are inverted. I tried pin 3 set to on configuration or pin 2 and 3 set to on. No difference. Through USB connection the channels are correct. Can anyone help? Which is the correct pinout?
How would you compare the sound of the Holo Red to the built-in streamer? I’ve been considering exactly the same setup and I still keep thinking about it.
 
Jun 4, 2025 at 6:59 AM Post #9,944 of 9,965
How would you compare the sound of the Holo Red to the built-in streamer? I’ve been considering exactly the same setup and I still keep thinking about it.
Well, before Red I was using Ifi Zen Stream. The Red is significantly better. Better defined bass, better dynamics and cleaner highs. These differences were obvious from the minute I plugged in the Red. I tried the internal streamer of the R26 when I bought it but had problems with stuttering and I didn't bother with it again, so I cannot make a comparison with the Red.
 
Jun 4, 2025 at 7:02 AM Post #9,945 of 9,965
Hi guys, I didn't find a suitable answer to my question so I will explain and hope for an answer. I have a Gustard R26. A month ago I bought a Holo Audio Red to try the II2 input on the Gustard. Everything sounded right except yesterday I found out that the left and right channels are inverted. I tried pin 3 set to on configuration or pin 2 and 3 set to on. No difference. Through USB connection the channels are correct. Can anyone help? Which is the correct pinout?
Do you mean that the channels are swapped? That's not uncommon, as there are different configurations for different manufacturers, and Gustard did the annoying thing by creating their own.
Don't confuse this with the channels being out of phase, which means that positive and negative on one or another channels are reversed.
 

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