Regarding DSD Native support of USB external DAC

Exactly!!!

 

You have a dac with HDMI and USB input? otherwise it is a seriously doubtful comparison.

DSD 128 or higher multichannel does not fit on the disc,
So it is non existing therefor not added to the hdmi options

There is no reason why hdmi would or could not handle 6 channel dsd128 and up.

HDMI is a video format, not an audio format. So i understand why people prefer USB/spdif/I²S
But the data rate and transfer stability for hdmi should be well enough for extreme res audio.
99% of the AVR's not being high grade audio could be the sole reason we keep on preferring USB/spdif/I²S

 

I wasn't quite clear. I don't have a stereo DAC with HDMI and USB. I don't think they make them. As you rightly noted, HDMI is intended for video players. I compared the same path: A6 - HDMI - receiver - preamp - power amplifier and A6 - USB - DAC - preamp - power amplifier. I realize this comparison isn't entirely fair. But my old, high-end receiver has a built-in DAC, similar in performance to my separate stereo DAC. But even taking this odd test into account, the second connection turns out to be better for stereo.

 

For sure they are there. But it uses hdmi arc. Wich is useless unless you consider a TV as a source.

 

This is what he meant: not really HDMI-out for direct-audio playback, but just a return channel from a TV... hence: there might be not so many DACs with such a capability.
Please note, that @Alexeydoma has gone through a lot of effort to get his device(s) work with HDMI... he's quite skilled on the topic.

 

some avr have both usb input AND hdmi inputs. But as usual it's stereo only.
i'd love an asio driver for my 11ch avr. (keep on dreaming). The pcm dlna will do for now.

 

To be clear: the question was about higher DSD quality in stereo, not multichannel.

And regardless of the HDMI design, some devices can handle DSD128 or higher via HDMI input.

And stop giving your own personal opinions and stick to the facts.
For me it's over,

 

Okay, but 128 5.1 SACDs don't exist and have never been created. So why would Eversolo implement a 128 multichannel HDMI output if you'll never be able to use it anyway? Of course, I'm only talking about multichannel, not stereo. Unfortunately, I can't verify whether the DMP-A6's HDMI output also outputs DSD128 stereo files, because my AVR's DAC stops at DSD64.

 

DSD over HDMI is not a standard but optional. I believe the hdmi standard recognises upto 4x dsd but most of the companies stop at DSD64 (1x).
My reciever stops at dsd64 hdmi support (6ch). But dsd 128 over ethernet (heos, stereo)

factual enough?

 

If we demand optical discs again maybe they will implement new sacd specs.
8 channel 1024 dsd on a multilayer blu-ray ( and 8192dsd stereo ) with a mp3 backup layer. For non compatible players

 

Personally, speaking absolutely agree with most of your statements on the Eversolo A6, however, there are a few folks, including myself that went a little further out on a limb for lack a better terminology and preferred the Eversolo A8, for a few different reasons,
And certainly enough and with good reason all depending upon your wants needs desires, and expectations,

The DMP-A8 Incorporates and uses an entirely different Dac implementation 4499EXEQ, in which I think the majority of us are quite aware, as per example, I myself have a few external DACs that implement the ESS saber DAC like the wonderful A6, the Eversolo A8 also offers a bit more flexibility and amenities if you so desire some of these features and amenities, Now I Must admit the vast majority of us older dudes here, are strictly into 2 channel Audio
The few that do have broader horizons use an entirely different set up for other uses and entities ect, videos, Wide screen, TVs, and so on, however, the 2 channel
Is absolutely definitely the main stay , definitely old school , OG’s

As far as a excellent preamp ? , at this point, I will absolutely without doubt leave that particular question open to the user or users, upon further evaluation, the few of us here that did purchase the DMP A8 we’re not particularly looking for another preamp. However, this particular unit was exactly on point as per my needs strictly speaking on a personal level of use, after parting with a much more expensive or costly your unit, of other manufacturer, naturally, just speaking for myself the DMP A8, absolutely without doubt fulfilled all my wants and needs overall and sonically speaking, and for approximately half the total asking Factor in comparison to quite similar units

Best of luck to everyone happy holidays please enjoy the music

 

Facts:
The highest audio bitrate for HDMI, especially with HDMI 2.1's eARC, supports uncompressed, high-resolution audio up to 32 channels at 24-bit/192kHz, delivering massive bandwidth (around 38Mbps), perfect for formats like Dolby Atmos and DTS:X, far surpassing older ARC limits (~1Mbps) and handling all lossless Blu-ray audio. While total HDMI bandwidth (up to 48Gbps/96Gbps - 18Gbps for HDMI2.0) covers video and audio, eARC provides the dedicated, massive pipe for the highest-quality immersive sound.
HDMI can handel a A 24-bit/192kHz LPCM (Linear PCM) audio stream for stereo (2 channels) has a bitrate of 9216 kbps (kilobits per second).

DSD128 is a high-resolution audio format with a sampling rate of 5.6448 MHz (5,644,800 Hz), which is double the rate of standard DSD (DSD64) and 128 times the base CD audio rate (44.1 kHz). It's also known as "Double DSD" or 2x DSD, offering greater detail by capturing the waveform more frequently, essentially translating to a PCM equivalent of around 24-bit/176.4kHz but with unique characteristics, using a single bit to represent sound amplitude changes.

Key Details
-Sample Rate: 5.6448 MHz (5,644,800 samples/second).
-Base: 128 times the CD standard (44.1 kHz).
-File Type: Typically found in .dsf files.
-Equivalent PCM: Roughly 24-bit/176.4kHz, but with a different underlying technology (single-bit, high-frequency).
-Benefit: Captures more sonic detail than standard DSD64 by sampling more often, providing a richer sound, though often with ultrasonic noise that requires handling.

Are there processor who can handle DSD128 on a HDMI input?
Yes vi the AV8805A supports high-resolution audio with extreme fidelity. Not only can it play lossless FLAC, WAV and ALAC files up to 24-bit/192-kHz, but it also decodes DSD audio at 2.8MHz and 5.6MHz!
* The AV8805a can stream signals of resolutions up to 24/192 PCM and DSD128—but in only two channels.

I did a check wit a LPCM 24/192 LPCM tracs (from a DVD-A disc) played from mine NAS through the Evesol A6 an HDMI-out to the processor and this high bitrate tracks player 1 on 1. Concluding the A6 HDMI output is capebel for a high bitrate audio output!

Q: So if the A6 can output DSD128 stereo throug USB, why not HDMI?
Why this limtation?

 

USB is stereo, HDMI multi channel.
There are no multichannel DSD128 Discs. So there's no need for a dsd128 HDMI version.
USB could be multi channel but it is ignored. HDMI is stereo capable but the DSD128 is ignored.

 

I am also having the same "native dsd with usb out" issue.
For context, My setup is DMP-A6 ME usb out to a SPL diamond DAC. I am using it for usb 2-channel music only, not multi channel.

In the usb setting of the eversolo, I am expecting that if output set to native dsd, eversolo output a dsd file stream as-is, and when DOP selected, eversolo coverts it to pcm prior to output.

However, for native dsd, it seems to covert it to PCM prior to output, which is not the expect behavior.

When i check the usb out info, eversolo detects the correct dac model (per file attachment) but it is not detecting dsd as a compatible rates. The spl dac is definitely tested and capable of direct dsd.

I am suspecting eversolo does not recognise that the dsd is capable of supporting dsd, as such does not send a dsd stream , even in native dsd option. I have seen screen shots of dsd64,128,256 appears under Rates, when eversolo detects a dsd capable dac. there are also many reports of this not being detected correctly for a variety of dac brands.

I am not sure how eversolo determines this, does it "poll" the dac for compatible rates or via some internal database ? or is this some implementation that the dac need to tell the streamer what it can support ?

I am considering an upgrade to a T8, since my usecase is a streamer only. I am assuming that the T8 might have the same issue, so was trying to see if this get fixed in the A6 first.

or is it something that the dac maker needs to comply to complete this handshake for both sides to be correctly detect supported protocol?

 

The DAC usually announces its USB audio capabilities (this is how USB devices work). It looks like yours doesn't, or the Eversolo is not able to interpret them correctly.
Are you able to play DSD direct to the DAC from, say, your Laptop / PC?

 

Thanks @Nutul
Yes, confirmed that the DAC is able to play dsd up to 256.

Just read the first post of this thread. Hopefully @mirror can include this model in future updates.


DAC brand: SPL
Model: Diamond
DSD Native Support Capability in the Specification: DSD 64, 128, 256
DAC INFO: screenshots attached