S/PDIF out into UA Apollo - cab driver?

matei72 · Jul 11th 2019

Hi all,

I successfully got my Kemper working into my UA Apollo for recording. I have the S/PDIF set to master stereo and I get the full spread of stereo effects in the monitors, however the recorded sound is really fizzy, buzzy... it sounds more like a '90s Zoom preamp than the sound I get in my headphones or via my cab from the Kemper itself.

Forgive my ignorance- is the cab driver software enabled when using the S/PDIF? I have cab off for monitors, as I'm running into a stereo power amp that drives two cabs - however it is still enabled for FOH. I assumed it would be enabled for S/PDIF as well - but it doesn't sound like it.

I did try enabling it, but it didn't seem to make any difference. Perhaps I've overlooked something or done something wrong?

sambrox · Jul 11th 2019

Make sure you aren’t overloading the input. There’s a spdif output level in the Output section.

matei72 · Jul 11th 2019

Yes, quite sure. It isn't distorting due to a hot signal - it just has that direct sound, like if you are going from a loadbox into the board w/o a speaker IR.

ckemper · Jul 15th 2019

It seems that you probably have not synched the Spdif properly.

KonstantinosD · Jul 17th 2019

You need to set your Apollo to receive clock from spdif ( Kemper is the master) and make sure to set the rate in the Kemper to match your Apollo 44.1, 48 etc.. I have the same setup with an Apollo X8

matei72 · Jul 17th 2019

Yes - I've managed to do that. I'll have another go this evening and see how I get on. Thanks!

matei72 · Jul 18th 2019

So... I ensured that the clock was set correctly on the Kemper, set the Apollo to get the clock from the s/pdif and tried again.

Aside from some crackling, it sounded great.

Tried again towards the end of the day, no crackles - sounded awesome!

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