FiiO K9 Pro Hi-Fi DeskDop DAC&Bluetooth&Amplifier,XLR/RCA/4.4/Optical/Coaxial interface
Feb 19, 2022 at 6:14 PM Post #1,261 of 2,233
if you use 4.4 as input on K9 pro,
on m11 volume should be maximum - like Line output.
As far as I know, m11 pro: only 3.5 line out, not 4.4

I don't have to use 4.4 input on k9 pro


butt in any way it is a strange setup for me.
when you use 4.4. output from m11 pro
DAC of m11 is working, and DAC from k9 not working at all. The only amp is working.

Much better IMHO connect m11 to k9 via USB.
In that case m11 works as transport, and K9 as DAC + Amp

Ok, so I need to find a cable which is USB male, plugging into the USB port of the M11 Pro. But I don't see an option on the M11 Pro for sending information on via USB. I see an option in Settings in Audio to choose USB mode, and then my options for that are Storage or "USB DAC," but if i choose USB DAC, then am I not still using the DAC of the M!1 Pro? Where do I set things on the M11 Pro?

Also, the USB cable that came with the K9 is a USB A, the big kind, not the connector on the M11 Pro. I think that is USB micro.
 
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Feb 19, 2022 at 8:28 PM Post #1,268 of 2,233
All:

I got it working. For the benefit of others who may need to do this:

1) On the front of the K9 Pro switch the first switch to "HP"

2) Get a USB C male to USB C male cable. Plug one end into the bottom of the M11 Pro, and the other to that USB C in connection on the right side of the K9 Pro.

3) The Settings screen does not match at all what the help file for connecting digitally shows. However, Go to Settings. Under SPDIF Out I randomly selected DoP. on USB Mode, the choices were Storage and USB DAC. Change that to USB DAC.

Now it should work.
 
Feb 20, 2022 at 6:42 PM Post #1,269 of 2,233
Acabo de pedir uno de estos hoy y espero recibirlo. Con suerte debería recibirlo mañana. Lo voy a usar con Focal Clear Og y Audeze LCD 2 cerrado. He estado usando una firma IFI IDSD, así que estoy ansioso por ponerla a prueba y verificar las diferencias entre dos.
como se desempeña con el LCD-2 ?? Si lo logra mover? Cual k9 tienes el akm o ess .?
 
Feb 20, 2022 at 9:45 PM Post #1,271 of 2,233
Thanks, just a question why does another devices uses the same DAC support 768khz and DSD512 but not K9 Pro? Is it the same for the ESS version as well?
Dear friend,

In order to support MQA and because of some other technical limitation, the K9Pro does not support DSD512.

Best regards
 
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Feb 20, 2022 at 11:41 PM Post #1,272 of 2,233
After hours of fiddling I finally got native DsD256 working out of Foobar into the K9 Pro.

Fiio - you really need to update your DSD/Foobar setup instructions.

The key is to NOT use the foo_dsd_asio driver everyone recommends and instead use foo_out_asio+dsd. It's available from the same developer: https://sourceforge.net/projects/sacddecoder/files/

This allows for Native DSD256 (64 and 128 as well) over ASIO rather than the old DoP method which does not work with DSD256 on the K9 Pro.
 
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Feb 21, 2022 at 12:55 AM Post #1,273 of 2,233
Dear friend,

In order to support MQA and because of some other technical limitation, the K9Pro does not support DSD512.

Best regards
Really? I'd love to hear the details on this, lol.

Great product overall, very happy with my purchase.
 
Feb 21, 2022 at 1:45 AM Post #1,274 of 2,233
Dear friend,

In order to support MQA and because of some other technical limitation, the K9Pro does not support DSD512.

Best regards

Okay noted I rather not having MQA support 🥲, although I don't use DSD512 but is a "better have it than not" kinda thing. Very strange that K5 Pro support 768k/32bit and DSD512 but not the flagship K9 Pro.
 
Feb 21, 2022 at 3:01 AM Post #1,275 of 2,233
Okay noted I rather not having MQA support 🥲, although I don't use DSD512 but is a "better have it than not" kinda thing. Very strange that K5 Pro support 768k/32bit and DSD512 but not the flagship K9 Pro.
We also found this difficult to understand during the design of the product.

But after a long time of our efforts, we were never able to achieve a satisfactory result, so we finally gave up.

When playing some DSD512 or 768k tracks, there will be problems, so we blocked this function
 
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