01-Jun-2020, 09:07
@petrik Is correct. See link below which mentions "Expert internal native PCM 40 bits / 384 kHz format"
https://www.devialet.com/media/wysiwyg/d...warev8.pdf
I recall that this information used to be on Devialet's website, but only mentioned for duel mono units, so it was never clear if this is for all ADH implementations or dual mono only.
@David A mentions that all inputs are upsampled to 24/192. I can recall being told exactly the same thing, but how exactly this relates to the 40 bit 348 kHz statement is not clear. Another curiosity here is that the USB input can accept 32bit / 192kHz, although quite what the use of a 32bit input is I am not quite sure.
Mindful of the above, which is relevant, let's take this fully back on topic. Let's say you have software (Tidal or Roon) that does the first MQA "unfold" and sends this to an MQA enabled DAC that does the second "unfold". You might see a situation were the software "unfolds" to 24/48, then your MQA DAC shows 24/192 (or maybe even higher) after the second "unfold". A little blue MQA light appears on your DAC and the display shows 24/192. Hooray, you think, I am getting 24/192. Although this is a bit of an MQA con as the last bit is nothing more than upsampling in the DAC.
Do the same thing with a Devialet, you have Tidal or Roon to do the first unfold, this gives you the same 24/48 feed as above. You feed your Devialet 24/48, and the Devialet upsamples to 40bit / 348kHz, then does it's ADH magic. No blue light appears, you do not have a display showing 24/192, but essentially the same thing is happening as if you had an MQA DAC, it is a 24bit 48kHz feed being upsampled by the DAC.
If you really wanted to, you could get a little blue light and a sticker with 40bit 438kHz written on it.
A better plan would be that if you want to listen to MQA content, remember that the first unfold matters, this is extracting more data from the file, and this you can do using Roon or Tidal software "unfolding". Feed this to your Devialet, enjoy the music, the rest of the MQA stuff you need not worry about, it really does not matter.
If you ARE still worrying about the above, you could use Roon / HQPlayer to feed your Devialet. HQPlayer has some filters specifically optimised for use with MQA feeding non-MQA DACS. This is arguably the ultimate way to listen to MQA via a Devialet, and if you happened not to like the HQPlayer MQA filters, there are a dozen others to choose from to try.
https://www.devialet.com/media/wysiwyg/d...warev8.pdf
I recall that this information used to be on Devialet's website, but only mentioned for duel mono units, so it was never clear if this is for all ADH implementations or dual mono only.
@David A mentions that all inputs are upsampled to 24/192. I can recall being told exactly the same thing, but how exactly this relates to the 40 bit 348 kHz statement is not clear. Another curiosity here is that the USB input can accept 32bit / 192kHz, although quite what the use of a 32bit input is I am not quite sure.
Mindful of the above, which is relevant, let's take this fully back on topic. Let's say you have software (Tidal or Roon) that does the first MQA "unfold" and sends this to an MQA enabled DAC that does the second "unfold". You might see a situation were the software "unfolds" to 24/48, then your MQA DAC shows 24/192 (or maybe even higher) after the second "unfold". A little blue MQA light appears on your DAC and the display shows 24/192. Hooray, you think, I am getting 24/192. Although this is a bit of an MQA con as the last bit is nothing more than upsampling in the DAC.
Do the same thing with a Devialet, you have Tidal or Roon to do the first unfold, this gives you the same 24/48 feed as above. You feed your Devialet 24/48, and the Devialet upsamples to 40bit / 348kHz, then does it's ADH magic. No blue light appears, you do not have a display showing 24/192, but essentially the same thing is happening as if you had an MQA DAC, it is a 24bit 48kHz feed being upsampled by the DAC.
If you really wanted to, you could get a little blue light and a sticker with 40bit 438kHz written on it.
A better plan would be that if you want to listen to MQA content, remember that the first unfold matters, this is extracting more data from the file, and this you can do using Roon or Tidal software "unfolding". Feed this to your Devialet, enjoy the music, the rest of the MQA stuff you need not worry about, it really does not matter.
If you ARE still worrying about the above, you could use Roon / HQPlayer to feed your Devialet. HQPlayer has some filters specifically optimised for use with MQA feeding non-MQA DACS. This is arguably the ultimate way to listen to MQA via a Devialet, and if you happened not to like the HQPlayer MQA filters, there are a dozen others to choose from to try.
1000 Pro - KEF Blade - iFi Zen Stream - Mutec REF10 - MC3+USB - Pro-Ject Signature 12
