RME User Forum — Adi 2 dac fs and Digicheck NG

Re: Adi 2 dac fs and Digicheck NG

null@example.com (lolot500) — Mon, 03 Aug 2026 10:02:36 +0000

I do that with the Baby and UCX it works.

Too bad for the ADI 2 dac fs

Re: Adi 2 dac fs and Digicheck NG

null@example.com (lolot500) — Mon, 03 Aug 2026 09:54:57 +0000

Good morning,

Obviously it doesn't work when the source is in USB. When opening digicheck the sound cuts off.

On the other hand when the source is SPDIF Digicheck works properly. If I understand correctly the ADI 2dac fs and digicheck only works with the SPDIF

Warmly

Re: Adi 2 dac fs and Digicheck NG

null@example.com (RME Support) — Mon, 03 Aug 2026 09:29:46 +0000

Please try to be more specific about what exactly happens. Does this happen with any playback software?

Re: Adi 2 dac fs and Digicheck NG

null@example.com (lolot500) — Mon, 03 Aug 2026 08:49:14 +0000

my MacBook Pro M1 Pro tahoé OS
so USB

Re: Adi 2 dac fs and Digicheck NG

null@example.com (MC) — Mon, 03 Aug 2026 08:04:39 +0000

What is your sound source?

Re: Adi 2 dac fs and Digicheck NG

null@example.com (lolot500) — Mon, 03 Aug 2026 07:55:04 +0000

OK guys,

Obviously it doesn't work with the ADI 2 dac FS.

I tried everything, followed your advice. As soon as I open Digicheck the sound cuts off loopback option triggered or not.

I specify that I have never had this problem with my other RME equipment.

Re: Adi 2 dac fs and Digicheck NG

null@example.com (MC) — Mon, 03 Aug 2026 06:34:31 +0000

Yes.

Re: Adi 2 dac fs and Digicheck NG

null@example.com (waedi) — Mon, 03 Aug 2026 04:31:37 +0000

This one ?

Re: Adi 2 dac fs and Digicheck NG

null@example.com (MC) — Mon, 03 Aug 2026 02:12:06 +0000

lolot500 wrote:

OK, I hear all your remarks. on the one hand by reading the manual that is not really clear about it... there are passages indicating that we can only monitor the spdif in signal. and on the other hand given your various remarks it seems very logical to monitor the USB out signal through ADI 2 remote by selecting the USB source in input and activating LOOPBACK. my question is always the same: why when I open DIGICHECK the signal is cut off and why it is impossible for me to activate "add playback channels" in the "audio device setup" tab Of Digicheck.
Warmly

Again, from the manual:
Note: The option Loopback to USB replaces the SPDIF input signal with the USB playback signal, either taken pre or post DSP. The input signal coaxial/optical is then no longer available for recording.

So you have to select SPDIF In L and R to see the USB playback signal in DIGICheck. There is no support for direct playback monitoring on Mac with ADI-2, so no playback channels selectable, and the exact reason we added the Loopback function.

DC NG should NOT be set to change the sample rate! Remove the checkmark at 'Set Sample Rate'. The signal 'cut-off' on opening is most probably caused by the set sample rate option in DC NG.

Re: Adi 2 dac fs and Digicheck NG

null@example.com (RME Support) — Sun, 02 Aug 2026 21:28:56 +0000

What exactly is cut off?

Re: Adi 2 dac fs and Digicheck NG

null@example.com (Kubrak) — Sun, 02 Aug 2026 20:30:35 +0000

@Lolot500

Maybe stupid question, but.....

Concerning DigiCheck and selection of input channels. Have you clicked on Device Channel field? In your case SPDIF L or SPDIF R. That should open a list of available inputs. At least it does so on Win and I expect it will be the same on Mac.

Re: Adi 2 dac fs and Digicheck NG

null@example.com (waedi) — Sun, 02 Aug 2026 18:56:00 +0000

Thanks for all these photos, unfortunately I can't see an issue.
i don't know why there is SPDIF only but it seems to be what you have to select and the signal should be there.

I did check the ADI-2 remote app here without any ADI-2 thats why the options for Loopback is nine (The ADI-2 remote app covers all
ADI-2 devices including ADI-2/4 pro)

Re: Adi 2 dac fs and Digicheck NG

null@example.com (lolot500) — Sun, 02 Aug 2026 13:35:53 +0000

thanks for your help

Re: Adi 2 dac fs and Digicheck NG

null@example.com (waedi) — Sun, 02 Aug 2026 13:04:52 +0000

Nobody can attach a screenshot for this forum. You have to upload the image to the internet with a public image service like imgur or imgbb.
This responds a link, open the link, right-click the image
copy image-address
paste image-address between img tags in the forum post.

This SPDIF has also channel numbers ? select the numbers 1/2

Re: Adi 2 dac fs and Digicheck NG

null@example.com (lolot500) — Sun, 02 Aug 2026 12:52:53 +0000

I can't attach a screenshot.

In any case, I only have 4 options for the loopback, namely: OFF, PRE FX, POST FX, POST -6db.

My choice is indeed PRE FX.

On the digicheck side I have no choice but SPDIF. Would there be a driver problem for the ADI 2 DAC FS?