• Green logo – MQA valid, the MQA is detectedMQA symbol on the display changes from blue to green
Apparently "MQA authored" doesn't always mean that it was approved by the studio.• Green logo – MQA valid, the MQA is detected
• Blue logo – MQA authored, the MQA is detected and the file is fully authenticated. You can be sure you are hearing exactly what the artist approved in the studio
@JohnW ,
thank you and Jacek on 2.12 firmware fix. Did make all the issues disappear in PCM and DSD via DoP formats.
However, now I am certain as there are other users on Linux when using S2 DAC in Native DSD mode, when there is switch from 44.1 PCM or 176.4 PCM to DSD64 there is noise that starts about 1-2 seconds into DSD file and disappaers after 7-8 seconds. Pausing playback does not help - as if DAC is going through some old buffer of data ...
Is there any chance this could be looked into ?
Thank you !!!
This is NOTHING to do with the DACs operation - we have no such buffer... What does the DAC display indicate? this will give a clue as to what might be happening. Linux support of DSD is hysterically stupid - Linux does not follow the industry "standard" and requires each individual DAC to be added to a device table identifying its DSD support.
We have streamers projects in development built around Linux and have no issues with NativeDSD so I'm pretty sure its not the DAC at fault.
Linux support of DSD is hysterically stupid - Linux does not follow the industry "standard" and requires each individual DAC to be added to a device table identifying its DSD support.
Hi all,
I've just order this DAC and would like to know if I could use a data only USB cable for the digital input and a power only USB micro cable for the 5v power supply?
hi Julf, well there is not much to be done in Linux. What needs to be done has been done already - Linux kernel 2 months old or newer knows that Pro-Ject DAC S2 can do native DSD. It is Pro-ject who need to test it shoud test it and if/when they do they will figure out something is not right. I think there are 3 options - fix the firmware (easiest), write the linux driver (lot of work) or do nothing.Have you discussed it with the developers?
hi Julf, well there is not much to be done in Linux. What needs to be done has been done already - Linux kernel 2 months old or newer knows that Pro-Ject DAC S2 can do native DSD.
sorry, this was probably covered but just got the box for Xmas. downloaded driver and firmware update and it plays however no blue light or logo when playing mqa files from Tidal. Any help appreciated. Merry Christmas.
hi Julf, well there is not much to be done in Linux. What needs to be done has been done already - Linux kernel 2 months old or newer knows that Pro-Ject DAC S2 can do native DSD. It is Pro-ject who need to test it shoud test it and if/when they do they will figure out something is not right. I think there are 3 options - fix the firmware (easiest), write the linux driver (lot of work) or do nothing.
Right - I was thinking about the larger architectural issues JohnW referred to when he wrote "Linux support of DSD is hysterically stupid - Linux does not follow the industry "standard" and requires each individual DAC to be added to a device table identifying its DSD support".
In fact, the designer recommends doing exactly that for better sound quality. The manufacturer hopes to revise the manual soon. The product comes with a 5v 1000mA switching adapter; I replaced it with a linear adapter.
To be correct here, the supplied Switching supply (or any other switching supply) SHOULD NOT BE USED at the same time as USB power due to high Earth Leakage currents.
Thanks John. We had gathered from one of your previous posts in this thread that the user manual is wrong: attaching the supplied switching supply improves the sound quality over USB power alone, and that is why you implemented an automatic change from USB power to external power when an adapter is plugged in. Are you saying switching supplies are to be avoided, but linear supplies are OK?