I have the powered toaster since a couple of weeks and both a Marshall 1936 (2x12) cabinet and an active monitor (dB Flexsys).
I am really impressed with the sound quality and versatility, but seem to have an issue with noise/buzz on certain rigs.
There is an audible noise / hizz coming in the background of a tone but only when a note is actually played on my guitar. If I turn down the volume on my guitar it is dead silent. If I turn it up and play a note, the noise/hiss is in the background clearly audible.Some rigs are really bad, others not.
The moment I switch off the "Amp" section on the Kemper, the noise is gone.I have tried to eliminate all types of sources for the issue (lights off, Pc disconnected, Tv off, different cables, noise gate, different volume settings,...) but nothing has changed.The level of noise is definetely linked to the type of guitar, some are more silent, others are really bad. a PRS513 is really bad for example (even in humbucker mode).
"Bad" is for sure relative, the moment you crank the whole thing up the noise will be more hard to hear due to the overall volume level and it's not that the noise is way louder than the real tone, but once you hear it you don't stop hearing it and that annoys me.
There is one thread in the private forum tips and tricks area on "cleaning up noise" with even some audio examples which is identical to my issue. Unfortunately this thread is not closed or the original question remains unsolved, this is why I reach out to this forum now.