Hello, this is a trouble I noticed last month and I already opened a support ticket about it.
In a specific rig I hear I very loud pop if I strum hard and I use some studio equalizers.
In this clip I tried to strum hard (not really hard to be honest). In the last seconds I strummed softer and the noise is gone away, before showing up again in the last strum.
https://soundcloud.com/ale-102/loud-clipping-kpa
It's a commercial profile (silver jubilee clean) with the original cabinet. If I put the cabinet and stompboxes in other rigs, pop is still present, louder or softer depending on the rig type (clean or distorted)
If I turn off the cabinet in that rig, the pop seems to go away.
I have noticed the same thing with another rig, but I don't remember which one because I was gigging and I did not even stored it. All I can recall is that I put a fuzz and a wah in the stomps section.
Before replying, please consider the following:
_The Kemper support team, once I sent them the rig, confirmed that they can hear that noise too, so my KPA isn't faulty.
_input and output led are green: the clean sense is 0 and rig volume is about 25%
_the recording has been made with spdif output, but with other rigs everything is fine (no noises, no pops)
_I can hear the noise with all outputs, including headphones
_guitar and cable are fine, I tried with other guitars and cables and nothing changed.
_there are two studio equalizer in the stomps and effects section. I can post the settings, but I just tell you that the first eq volume is +2.6 db and the second eq volume is -3,8 db
_if I lock the cabinet and the two studio equalizers, the noise is still present in other rigs
_rig isn't corrupted, it weighs about 5 kb
_already tried a system reset
_already tried to downgrade firmware
Mr. Kemper said that it's impossibile to "internally" clip the KPA. I actually think that some rigs profiled with very high volumes may cause that sort of clipping.
Thank you for your attention chaps