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

Oct 1, 2022 at 11:55 PM Post #451 of 9,922
Just the fact that I can run a cable directly from my router to my DAC is a miracle to me, eliminating my Zenstream, its power supply, a usb cable/input.....all those transitions.
Definitely understandable!

I'm totally on the same page, curious and paranoid, and I mess with eeeverything, but for now at least I'm going to stop overthinking, have a double IPA, and order a Supra ethernet cable from Madisound.
You're crazy, IPA doesn't taste good! 😋 Cheers!

I know the objectivists would say a $12 cat 6 cable will do all the Supra will do, and the audiofreaks will do with nothing less than an AQ super diamondplatinum or a JCAT, but I think $141 is a good compromise and plus my lady is Swedish from very near where they're made so I score a few points for that.
Well it's Cat 8, that's likely a good start with lots of shielding. I would be surprised if they actually make this one themselves (apart from slapping some connectors on stock cable) since they aren't even bragging about materials (like, say oxygen free copper shielding instead of more pedestrian aluminium), but who knows. It should do the trick!
I had a brief look at what the Wireworld equivalent would be and because of their geometry it's not twisted pair and therefore can't be rated as Cat X. Oh, well.

I really appreciate your input Ally-C, there's so much to learn and it's easiest and most enjoyable learning from experienced humans.
It was fun! Looking forward to future reports from you!
 
Oct 2, 2022 at 12:16 AM Post #452 of 9,922
Definitely understandable!


You're crazy, IPA doesn't taste good! 😋 Cheers!


Well it's Cat 8, that's likely a good start with lots of shielding. I would be surprised if they actually make this one themselves (apart from slapping some connectors on stock cable) since they aren't even bragging about materials (like, say oxygen free copper shielding instead of more pedestrian aluminium), but who knows. It should do the trick!
I had a brief look at what the Wireworld equivalent would be and because of their geometry it's not twisted pair and therefore can't be rated as Cat X. Oh, well.


It was fun! Looking forward to future reports from you!
Yeah, Wireworld Starlight 8, $950 for 10m. Pretty cable for sure, but it's a bit out of my range to say the least. Here's a review from Jay Luong on the Supra: https://audiobacon.net/2017/05/31/s...view-an-amazing-spotify-and-tidal-experience/
I've found his reviews to be pretty reliable, YMMV. It was a review of his a while ago that turned me on to Requisite Audio ICs, and he was spot on. I ended up having great and involved conversations with the founder, and he knows his business (they also make the RAAL/Requisite SR1a). I use his ICs exclusively, but terminated with KLEI RCAs and they're a true bargain!
I was curious about the same thing, why Supra doesn't list the specs of their build. Curious minds want to know, I'm going to write them and ask what's up.
 
Oct 2, 2022 at 2:13 AM Post #453 of 9,922
Guyz let's try not to deviate too much.
 
Oct 2, 2022 at 5:51 AM Post #454 of 9,922
I am waiting for the delivery of the R26.

I am looking forward to the possibility of quality playing with the Roon application via ethernet connection, or playing directly from the NAS via ethernet. When it's played and I try it out, I'll be happy to share info about SQ.

And so far I've been using Roon and HQPlayer with the LKS 004 DAC. But regardless of the filter, the oversampling never sounded as good as the native file. There was a bigger sound image, but the focus was lost. There were other drawbacks, but to make a long story short, the impression of attending a musical event was diminished. It is valid for both PCM and DSD.

Maybe it's up to the DAC. I'll let you know when I try it on the R26.
 
Oct 2, 2022 at 6:56 AM Post #455 of 9,922
Roon uses it's own proprietary protocol, named RAAT.

Roon CAN control R26 via LAN.

Just look a few posts/pages up, we just had this discussion with another user, and told them how to make R26 work with Roon.

If you use Roon, they make remote control apps for ALL devices. iPhone/iPad/Android/Linux/Windows/Mac.

Audirvana has to use UPNP because it doesn't have it's own streaming protocol.

Think of Roon like an all-in-one package, network server, to streamed endpoints.
All incapsulated within it's own ecosystem.

Roon = Advanced network streamer
Audirvana = Foobar2000 on crack
I found the correct post and it worked.
I had the LAN option under my eyes, but I got confused by the name of the end point “Gustard USB… “ even if it was given the IP address.
Thanks a lot.
 
Oct 2, 2022 at 7:11 AM Post #456 of 9,922
My friend has the Gustard R26 connected to his DLNA server (an Asus router with its DLNA server playing files from a HDD plugged to it) and playing a playlist with Mconnect for the last 10 days to burn in the R26 and it is working absolutely stable as a rock. Not a single drop in the streaming in this time (240 hours streaming time)
The setup: Asus DLNA trhough AX wifi > Netgear EAX12 extender configured as Media Bridge (enabling only the 5Ghz AX band to connect to Asus router and both extended wifi bands disabled) > 1m CAT8 cable> R26 1v3 renderer

P.S.: Asus DLNA users take note AsusWRT software doesn’t recognize .dsf abd .aiff files so if you are usng the DLNA server from an Asus router you won’r see those files as audio files from the Asus DLNA server
Below a pic from Asus website showing Asus DLNA supported audio files.

FE5646CF-B1A8-43E2-B306-26BA8382A6E9.jpeg
 
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Oct 2, 2022 at 11:00 AM Post #459 of 9,922
The Gustard R26 DAC

Introduction

I have been worried on purchasing an R2R DAC after reading reviews on the Denatrips and Holo DAC’s. I thought they probably would not appeal to the rocker in me. It was not until I heard the Rockna Wavelight that I changed my mind. The plan was to save and save until I could purchase one. A 15% sales increase changed my mind.
I then decided to wait for the latest AKM chip-based DAC. But a description “Sounds like velvet” put me off. Too much in the smooth side was how I imagined the sound to be. So, I just thought it would take time for me to purchase a new DAC.

Build quality
This has a new case but same dimensions as the A22 DAC. It feels a bit heavier than the A22 and has a bigger display that turns off when listening to music. At the back it has a whole bunch of connections Inputs USB AES SPDIF Optical and Ethernet. It also has an input for an external clock. I have chosen Black to match my other equipment, but I like the design of the silver unit. It can go either XLR or RCA out.
Internally it has two power supplies, one for the analogue section and one for the digital section, this might explain the extra weight of the unit. Basically, similar in design to the X26pro but with a ladder-based approach rather than the sabre chip. Looking at the pictures it looks well built with quality parts. It has a K2 ultra-low noise clock with a Femto Clock to ensure low jitter and quality discrete components.

My DAC Background
My first DAC was a PS Audio digital link 3 and have been through most of Stans Beresford DACs which offered good value for money and few Chinese DAC ‘s including the Topping D70 and the Gustard A22 which has been in my system for about two years.
The A22 is a nice DAC. It many ways it reminds me of Caiman but with more detail and depth. A sound that is easy to live with, no nasties in terms of highs that hurt the ears, but detail enough to give a convincing feel to the music.
The R26 present music differently in terms of detail retrieval, bass impact, separation and harmonic clarity.

So how does it Sound
I guess compared to the A22; it has more balls. I never felt the A22 could not rock; it is just that the R26 has more impact in the bass and mid’s, but it never overwhelms me. The treble has more detail but does not become harsh. However, the real surprise is the improvement in harmonic detail. This adds a new dimension to my system. It has a good sense of coherence. I could see Jules liking the way a violin sings, and Martin would like the way it controls bass. The music has a real sense of ease, this dose not mean that it sugary, far from it. Here it means that I lose track of time, the music just flows in effortless fashionI feel the dynamic swing. It sense of swing is excellent. For me, it just allows me to sink deeper into the music. It copes well with my music and does that wonderful trick of pulling new information I never heard before.

I have not tried the streamer still waiting for some cables before I give this a try. I am not sure what to expect from it as a streamer I have no real expectations.
I am not able to assess NOS as I do not have a balanced preamp. I might get a Topping A90 discrete when I have funds.

Best DAC under £3500. Who knows? I just have not heard enough DAC's to make an honest comment. Has it lived up to my hopes…. yes, it has.

What next
Audio magic fuse if I can find one to try internal to the DAC.
An external Clock at some point.

Digital front end
Ifi Zen Stream
USB out to R26 with a Gustard supplied cable
R26 on four Black Ravioli

Power Amplifier
XLR Temple monos with supercharger

Speakers
Gold Note A3


Just wanted to say, if you haven't gotten an amp yet. The best amp I found to pair with Gustard a22 DAC is the Bryston BHA-1 amp.

I highly suggest you look for one. Do not get an A90 Discrete as the first choice. (If for dynamic drivers, but for planar stuff I like to go full power amp memes)

Thanks for the A22 versus r26 comparison. I am still in love with my a22 DAC, and this intrigues me with an r26 comparison.
 
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Oct 2, 2022 at 11:30 AM Post #460 of 9,922
I would be surprised if they actually make this one themselves (apart from slapping some connectors on stock cable) since they aren't even bragging about materials (like, say oxygen free copper shielding instead of more pedestrian aluminium), but who knows. It should do the trick!
No personal attachment to Supra, just wanted to share they do more of their cable construction in-house than many cable manufacturers (whether that matters or gives better results is up to the listener of course). Wouldn't want an off the cuff supposition to get mistaken as fact.
 
Oct 2, 2022 at 2:13 PM Post #461 of 9,922
So, with initial testing, I can get Roon to recognize PCM and DSD 1024 under signal chain. Unfortunately, this is making the sound play in slow mode which I am sure the bottleneck is the U18 as it doesn't appear to support higher than 768pcm or 512dsd. I get sample rate mismatch in HQP.

So, the question, how to get i2s from pc to R26 to get 1024? Is this where a pi2s comes into play? Anything more plug and play out there?
 
Oct 2, 2022 at 2:18 PM Post #462 of 9,922
So, with initial testing, I can get Roon to recognize PCM and DSD 1024 under signal chain. Unfortunately, this is making the sound play in slow mode which I am sure the bottleneck is the U18 as it doesn't appear to support higher than 768pcm or 512dsd. I get sample rate mismatch in HQP.

So, the question, how to get i2s from pc to R26 to get 1024? Is this where a pi2s comes into play? Anything more plug and play out there?
Check this one

https://www.amazon.com/Digital-Interface-Coaxial-Optical-Audio/dp/B08HN3VSF8
 
Oct 2, 2022 at 2:25 PM Post #464 of 9,922
Oct 2, 2022 at 2:32 PM Post #465 of 9,922
Has anyone tested up to what maximum resolution PCM and DSD work on the ethernet input?
 

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