Kemper Profiler Stage + Focusrite Clarett 4 Pre USB

Hi all,

I recently got a Kemper Stage as well as a Focusrite Clarett 4 interface.

I got this specific interface as it wasn't overly expensive and I wanted to use SPDIF to connect the Kemper (just seemed the most straightforward option from what I read...).

I do have an issue tho... Whenever I set the Focusrite to be the master (the Kemper Stage allows this), i.e., set the clock to Internal, I can hear artifacts coming out of the speakers (little crackling noises). These are much more noticeable if I raise the sample rate above 44.1 kHz...

On the other hand, if I set the Kemper as master, i.e. clock set to SPDIF, then the crackling noises go away, but the Focusrite loses the lock with the Kemper on occasion (every 15min or so... but the timing seems random). What I mean is, it clicks, the lock light goes out and then back again... This also seems to happen more as I raise the sample rate.

Both the Kemper and the Focusrite have the latest firmware and this is really annoying, to the point I'm considering going analog or just getting another audio interface...

Has anyone had this issue? I've read a number of posts about similar problems but none quite exactly as I'm experiencing.

Thanks in advance!

Rui

Quote from lightbox

Just to make sure ... you have 2 S/PDIF cables connected, right? Input and output?

No, as I understand you only need 2 SPDIF cables if you want to do reamping.

I am using just one, from the SPDIF out on the Kemper, to the SPDIF in on the interface.

Thanks

I was not aware of that...

So what is exactly happening now? Because it still somehow works with just one cable, just loses the lock randomly...

I will try that I thank you very much lightbox!

Quote from lightbox

sorry, slave I meant, of course.

Thanks again!

It doesn't seem to make any difference to connect the second cable tho, i.e. if the Kemper is slave I will hear the crackling.