[reiserFS]

  Im interested in DSD, if you had a chance to test it.

Tried a Queen DSD track, but couldn't hear any differences when compared to PCM - no wonder, it's a DOP DAC, though I'm not really a believer of DSD. 

 

[Holypal]

  Tried a Queen DSD track, but couldn't hear any differences when compared to PCM - no wonder, it's a DOP DAC, though I'm not really a believer of DSD. 

 
Is it really a DOP DAC? Can it decode DSD natively?

 

[reiserFS]

   
Is it really a DOP DAC? Can it decode DSD natively?

It only offers DOP, no native DSD playback.  You'll have to set up Audirvana like this for it to detect the stream as DSD. 
 

 

[CoolerB]

What do you mean, its DOP dac? if you send to it a DSD file, whats going on inside of it, if dac is DOP and not DOP, whats the difference?

 

[reiserFS]

 

 The original idea for DoP was invented by dCS in 2011. It involves taking groups of 16 adjacent 1-bit  samples from a DSD stream and packing them into the lower 16 bits of a 24/176.4 data stream. Data from the other channel of the stereo pair is packed the same way. A specific marker code in the top 8 bits identifies the data stream as DoP, rather than PCM. The resulting DoP stream can be transmitted through existing 24/192-capable USB, AES, Dual AES or SPDIF interfaces to a DoP-compatible DAC, which reassembles the original stereo DSD data stream COMPLETELY UNCHANGED.

From https://www.dcsltd.co.uk/support/what-is-dop-dsd-over-pcm/

 

[LoryWiv]

Leaving aside the issue of whether DoP truly produces identical stream when reassembled as does native DSD, the product description on amazon seems to imply different inputs may handle DSD differently:
 
Support DSD high definition audio:
I2S: DSD64/DSD128/DSD256/DSD512 
Spdif/Optical/AES/EBU: DSD64(DOP mode) 
USB: DSD64/DSD128/DSD256  
 
My interpreation (admittedly could be incorrect) is that the I2S and USB inputs differ from the SPDIF/Optical?AES?EBU which do DoP...i.e.the I2S and USB may offer native dsd...can anyone confirm? 

 

[CoolerB]

I just lost with all these standards, i dont understand what happens with signal, when dac natively supports DSD and not. I mean, if

DSD data stream COMPLETELY UNCHANGED 

 

[reiserFS]

Leaving aside the issue of whether DoP truly produces identical stream when reassembled as does native DSD, the product description on amazon seems to imply different inputs may handle DSD differently:

[COLOR=333333]Support DSD high definition audio:[/COLOR]
[COLOR=333333]I2S: DSD64/DSD128/DSD256/DSD512 [/COLOR][COLOR=333333]
[/COLOR][COLOR=333333]Spdif/Optical/AES/EBU: DSD64(DOP mode) [/COLOR][COLOR=333333]
[/COLOR][COLOR=333333]USB: DSD64/DSD128/DSD256 [/COLOR] 

My interpreation (admittedly could be incorrect) is that the I2S and USB inputs differ from the SPDIF/Optical?AES?EBU which do DoP...i.e.the I2S and USB may offer native dsd...can anyone confirm? 

I've tried setting the DAC to native within Audirvana and it resulted in nothing but noise. Someone might need to try it on Windows though.

 

[CoolerB]

I've tried setting the DAC to native within Audirvana and it resulted in nothing but noise. Someone might need to try it on Windows though.

You can install HQPlayer for test on mac, they provide 1 month demo version for free.
I will test it with windows as soon as mine arrives. I ordered it a week ago, still waiting. How long did it take for you? (i suppose you ordered it also on ebay, from clear-components)

 

[LoryWiv]

The question is answered in the A20H manual. See "Specifications" on page 6. USB and IIS input are capable of DSD native.

 

[reiserFS]

You can install HQPlayer for test on mac, they provide 1 month demo version for free.
I will test it with windows as soon as mine arrives. I ordered it a week ago, still waiting. How long did it take for you? (i suppose you ordered it also on ebay, from clear-components)

I originally ordered the black version, but clear components reached out to me on the same day that it was out of stock. They asked if it would be ok to deliver the silver version instead, which I agreed to. Shipped next day and arrived on Saturday.

 

[tomasmiguel53]

I own a A20h since now 3 weeks .I'm using Jriver and had no problems in playing DSD native or DOP  . It's evident that the XMOS driver is a pirated one as the panel control has not full features and it's a not signed driver. I'm not sure even it's working properly . I 'm using an experimental board . http://www.diyaudio.com/forums/digital-line-level/304537-bluwave-usb-spdif-bridge-miniature-beauty.html
The sound is night and day from the stock Gustard usb board  so talking about digital formats is sterile . This dac is a bargain with a clear ,real audiophile sound .
Can someone in this forum tell me what is the Receiver used in this unit as i don't want to open for now the dac,

 

[penmarker]

  I own a A20h since now 3 weeks .I'm using Jriver and had no problems in playing DSD native or DOP  . It's evident that the XMOS driver is a pirated one as the panel control has not full features and it's a not signed driver. I'm not sure even it's working properly . I 'm using an experimental board . http://www.diyaudio.com/forums/digital-line-level/304537-bluwave-usb-spdif-bridge-miniature-beauty.html
The sound is night and day from the stock Gustard usb board  so talking about digital formats is sterile . This dac is a bargain with a clear ,real audiophile sound .
Can someone in this forum tell me what is the Receiver used in this unit as i don't want to open for now the dac,

So does that mean you opened the A20H unit, took out the existing board, and installed a new board?

 

[tomasmiguel53]

no ,i simply plug the new board on the Aes input .I 'm asking for the receiver of the A20H to match the input voltage level and don't open the unit to see by myself.
Regards

 

[kukynas]

  no ,i simply plug the new board on the Aes input .I 'm asking for the receiver of the A20H to match the input voltage level and don't open the unit to see by myself.
Regards

 
which receiver are you asking for, spdif? if yes than AK4118...