New Audio-gd R-7, R-7HE R-8, R-27, R-27HE, R-28 Flagship Resistor Ladder DACs and DAC/amps
Mar 10, 2023 at 7:28 AM Post #10,021 of 11,260
Does that sound like the best approach or given the quality of my streamer is AES direct into the DAC best and the DI-20 being unnecessary, in my specific set of circumstances?
is your spdif input transformer coupled?
 
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Mar 10, 2023 at 9:22 AM Post #10,022 of 11,260
Mar 10, 2023 at 9:51 AM Post #10,023 of 11,260
Damn, I've just realised that the DI-20 has a Spdif IN, so I can run my Aqua LinQ into it via my Oyaide FTVS-510 and output it via I2S!

Does that sound like the best approach or given the quality of my streamer is AES direct into the DAC best and the DI-20 being unnecessary, in my specific set of circumstances?
Depends on how good your streamer but normally the di20 will improve sound. It is much about noise. The di20 should output a cleaner signal than your streamer.
 
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Mar 10, 2023 at 9:53 AM Post #10,024 of 11,260
is your spdif input transformer coupled?
😂😂😂

I would use the acss port if it was not transformer coupled.

It supports 384khz
 
Mar 10, 2023 at 9:54 AM Post #10,025 of 11,260
AES is always preferable to S/PDIF. I think it's worth trying that and after some months you could consider adding a DI-20/HE if you want to try IIS into the DAC.

DI-20HE is helpful if you want to run multiple inputs (coaxial S/PDIF, USB) or have noisy USB, but I think @FredA pointed out the USB on the new DACs is already isolated.
Usb isolation is not perfect. I agree that just the dac through aes/ebu should work very well. I would use some sort of ac isolator on the streamer. Having a transformer coupled aes out would be good of course to avoid a ground loop. The r7 has such a transfo on its aes input so you are covered and i guess the other dacs do to, to verify.
 
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Mar 10, 2023 at 10:09 AM Post #10,026 of 11,260
Usb isolation is not perfect. I agree that just the dac through aes/ebu should work very well. I would use some sort of ac isolator on the streamer. Having a transformer coupled aes out would be good of course to avoid a ground loop. The r7 has such a transfo on its aes input so you are covered and i guess the other dacs do to, to verify.
I think if the DAC output is AES/EBU as opposed to plain AES, that means it should be transformer-isolated. I'm not sure how careful the companies are with naming though.
 
Mar 10, 2023 at 10:58 AM Post #10,028 of 11,260
Damn, I've just realised that the DI-20 has a Spdif IN, so I can run my Aqua LinQ into it via my Oyaide FTVS-510 and output it via I2S!

Does that sound like the best approach or given the quality of my streamer is AES direct into the DAC best and the DI-20 being unnecessary, in my specific set of circumstances?

If you are concern about the sound quality differences between versions of R7, you may need the DI20He to feed the DAC, unless your power supply is quite good. Else, you can try it out using AES directly into the R7. To improve further from just R7, you have the following options:

add:
DI20He
10MHz clock
 
Mar 10, 2023 at 12:42 PM Post #10,029 of 11,260
Susvara is soo unreal on my AGD. I can feel the dark/black background, its getting scary.

Anybody that has di20 dac and headamp from AGD that can confirm the same with Susvara?
 
Mar 12, 2023 at 3:55 PM Post #10,031 of 11,260
So I've just set up a R7HE 2020 edition and I am a bit overwhelmed with the various settings.

What is considered the best settings for a 2020 unit ?

Does anyone use the SAA7220 +TDA1541A filter?

I'm also pleasantly surprised that I can get DSD64 through AES.
 
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Mar 12, 2023 at 4:10 PM Post #10,033 of 11,260
Try Os8 and NOS.
Agreed, keep it simple. Turn off phono simulation, etc. Really, there are not many settings.
 
Mar 12, 2023 at 4:45 PM Post #10,035 of 11,260
So to achieve that my settings read 1 (aes), R, N, 3?

Or should it read 1, R, 0, 8?

The manual is very poor!
@FredA meant try those two separate settings, not at the same time.

One hint if the English manual is unreadable (it pretty much is) is to use Chrome and look at the Chinese version. It's often better than the English pages even with the machine translation.

English http://audio-gd.com/HE/R7HE20/R7HE20EN_Use.htm
 
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