Hi @matsraknerud and welcome!
Are you playing with a slide? If you just fret a single note with all other strings muted, do you still hear this?
There are a few things this could be:
- pickup height is too close to strings?
- Interaction between the power station and the amp or speaker; basically anything with a magnetic field could be coupling with each other. Try to maximise the distance between PS-2, the amp, and the speaker.
On the PS-2 side of things:
- Try going to Flat on both toggles
- Try reducing the presence and depth controls
- Power supply capacitors (or others) are leaky
The bad news: it could mean you need a service… very quickly… talk to @Gil he can get you sorted out. Follow these instructions: How can I send my product to Fryette for a repair (RMA Request)?
Dan