DSD distortion noise on Toneboard


I have the tone board and when playing DSD 64 - 512 native, I get intermittent burst of distortion noise from both channels. PCM has no issues.

I borrowed another tone board from a friend and it did not have this problem.

How to resolve this?


Just to chime in…I am the friend…and we tried this on USB connection to RPi using Volumio and Ropieee (with Roon DSD upsampling and DSD file) and direct to MacBookPro with similar results.


For reference, here’s the product pic.



@tsangyoujun Any update on this issue. When I tried my unit in the same setup @fyusmal place there was no issues so it seems like a hardware issue.


Hi Guys,

We’re working on a new firmware that hopefully will resolve the issue. Please stand by.

You Jun
Khadas Staff


standing by :slight_smile:


Here you go: Tone Board v1.02 Firmware Update


@tsangyoujun Thanks for the updated firmware.

Loaded it up. Unfortunately it did not solve the intermittent burst of distortion when playing DSD.

Again PCM does not have any issues.

This is very likely a hardware issue as the other tone board did not have such issues.


the firmware seems to be working well? Not getting any noise while playing DSD.

Will continue to monitor it