-
WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!
SONCOZ SGD1 Audio DAC Review
- Thread starter amirm
- Start date
The volume is fixed from the SPDIF out.
I use it to feed my Genelec Ones, using a Neutrik impedance adaptor, but adjust the volume using the Genelec GLM volume control. It works great like that
I use it to feed my Genelec Ones, using a Neutrik impedance adaptor, but adjust the volume using the Genelec GLM volume control. It works great like that
The volume is fixed from the SPDIF out.
I use it to feed my Genelec Ones, using a Neutrik impedance adaptor, but adjust the volume using the Genelec GLM volume control. It works great like that
Ok, thanks for confirming.
officialsm
Member
- Joined
- Apr 6, 2021
- Messages
- 99
- Likes
- 14
The volume control works for the analog single ended (RCA) and the balanced XLR outputs (so can be connected direct to a power amplifier, or active speakers), but not the SPDIF digital output. No volume control on the digital output.
twofires
Member
- Joined
- Jan 4, 2020
- Messages
- 41
- Likes
- 63
Quick question: I notice that with a different Soncoz product it wasn't recommended to use both analogue RCA and XLR outputs simultaneously. Is that also the case for the SGD1? I was intending to use XLR out to a power amp and RCA out to a subwoofer.
XLR Balanced and RCA single-ended outputs can be used together.
- Joined
- Nov 23, 2020
- Messages
- 182
- Likes
- 130
I noticed that there aren't any measurements for the SGD1 post IMD hump fix, so i sent my unit to Golden One for measurement and here are the results. These seem to correspond with those posted by Purr1n at https://www.superbestaudiofriends.o...ncoz-sgd1-vs-geshelli-jnog.10955/#post-347268 . Seems like the IMD hump fix has resulted in worse SINAD performance.
Do you know if yours is one of the very early ones where they had to manually re-solder in order to fix ESS IMD hump?
Is this ess imd hump fix needed only on this dac, or also on la qxd1 as well?
Was for both. And have been fixed since the early batches.
Ok thank you. Was wondering if the fix really made the sinad worse in both dacs....
I have no idea.
- Joined
- Nov 23, 2020
- Messages
- 182
- Likes
- 130
It is not. I have pictures of the inside. Board says SGD1 V23 2019 12
MBL'er
Member
- Joined
- Jan 22, 2021
- Messages
- 67
- Likes
- 54
If you carefully check circuit pics of the review units (you can refer to the Audio-Monkeys site) and of the commercially available units, you would spot some differences in power filtering caps. Maybe that would contribute to explain Sinad differences (btw, what is Sinad of the post hump fix sample ?).
- Joined
- Nov 23, 2020
- Messages
- 182
- Likes
- 130
Caps are 220, 2200, 2200, like in the post fix circuit diagram.
MBL'er
Member
- Joined
- Jan 22, 2021
- Messages
- 67
- Likes
- 54
You would check this page for review units caps: SONCOZ SGD1 review - DAC | Audio Monkeys (audio-monkeys.com)
BTW, I know in details the differences, and was about to replace my (commercial) SGD1 caps. For instance, next to the first transformer there are two big capacitors, Nichicon 6800 in the review unit, Elna 3300 in the commercial unit.
Last edited:
It's for sample testing.
The mass production is ELNA, and the performance and price of this ELNA are higher than that of Nichicon before.
- Joined
- Nov 23, 2020
- Messages
- 182
- Likes
- 130
Dont think it did with the QXD1. The ones measured by Wolf and Amir didn't have the hump when they first measured it and still had 115dB sinad. So unless they were golden samples, this is just an issue with the SGD1.
MBL'er
Member
- Joined
- Jan 22, 2021
- Messages
- 67
- Likes
- 54
I am not making any questions on caps‘ price / performance, even though 6800uF is 2.1x 3300uF, but pointing out some layout differences that could maybe explain why the SGD1 review sample measured performance is much better than a random commercial samples. Of course on top of the elimination of the “hump”.
You might have noticed that guys at SBAF tested a commercial sample and their numbers differs compared to ASR, also in qualitative terms (like a distortion spike at 800Hz).
Even though I could not audition an SGD1 review sample, I believe such differences are well below audibility. But I am anyway curious about causes.
Last edited:
Similar threads
- Poll