Khadas Tone 2 Pro not full MQA

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Volumio Information

Volumio Version:2.882
Hardware: Raspberry Pi 4B
DAC: Khadas Tone 2 Pro

I have Tidal Connect working well streaming to a Pi 4B connected to a Tone 2 Pro via USB. The Tone 2 Pro claims to be an MQA Decoder, so it should be able to fully unfold MQA. No matter which settings I try, I can’t get more than 48kHz / 24 bit (according to the onboard screen, and the LED indication on the Tone 2 Pro). I’ve tried setting the volume control to either “software” or “none”, and neither seems to pass any higher MQA through. What am I missing?

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if you want mqa you need your volume at 100%
that is what i read on the forum…

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Yes. I have the volume at 100%, and am capped at 48kHz / 24 bit. I’ve also set Volumio to fixed volume output, with the same results. I have confirmed that if I play high bitrate DSD files, the DAC receives them at the proper bitrate, so this definitely seems to be an issue with Volumio communicating with the Tone 2 Pro to properly send the MQA to the DAC for unfolding. I’ve also confirmed that when the Tone 2 Pro is plugged directly into a computer via USB, and Tidal is set to MQA passthrough, the Tone 2 Pro decodes the MQA files at the correct bitrate. So it seems that the issue is that Volumio isn’t sending the MQA files as a passthrough to the DAC.

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Mqa option is set to on in volumio?

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i would advice use a other image 2.882 has a lot of problems
there is already a newer version …

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That’s the latest official release, right? Are newer beta releases stable?

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they say it’s stable in a post… …
i’m running on 3.xx but i read that 2.904 is some where already.

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You may also want to read this from the Khadas forum. Make sure you are playing Tidal with the highest possible sample rate set and select the right track versions.

1 Like
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Alright, I’ve gone through several troubleshooting steps, and ended up somehow getting MQA working. I’m not sure which step did it. I tried the latest Buster beta, which had some issues, so I did a fresh install of the latest 2.882, and now when I set the mixer type to “none” I’m able to pass MQA through to the Tone 2 Pro, and it is showing the correct LEDs for the expected level of MQA unfolding. Now to convince them to enable hardware volume control…

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Khadas’ response to that question earlier this year:

We will release dedicated firmware with dual volume support in the near future, you can upgrade it to enable the software volume.