Hi all,
I have an odd issue with my Kemper that is becoming increasingly problematic as I've started layering multiple guitars. When I use certain profiles, cranking the distortion results in a very unpleasant amount of digital noise that gets worse (and different) the closer I move my guitar to my PC. Here's a clip:
https://dl.dropboxusercontent.…kwc86vy/untitled.mp3?dl=0
In the beginning I turn the noise gate all the way down and then back to around 5 or 6. Starting at around :23, I bring the guitar near the GPU of the computer, and then around the front. At the end I click the mouse a few times, which also makes a short noise.
The sound goes away if I turn the volume on the guitar down all the way. If I use a clean or low-gain profile, the sound is much reduced (but still present); some component of the noise is nearly eliminated by turning down the Definition setting on the KPA. I have ruled out:
* My audio interface (unplugging it and monitoring through headphones on the KPA makes no difference)
* Monitor (switched to a brand new monitor just today)
* Instruments (my bass and guitar both have the same issue; guitar has active EMGs and bass has passive pickups)
* The instrument cable (moving it/putting it directly on top of the PC case makes no difference)
* Studio monitors (on/off makes no difference)
* Pickups (have tried the pickup switch on both instruments)
* Displayport vs HDMI for my monitor
* Lights in the room on/off
* Toggling ground loop switch on the KPA and audio interface
Any thoughts? It's not unbearable, but if I quad-track my guitars and let the note ring out it is definitely noticeable in the recording. Thanks in advance for your replies