On the Line out (both L and R) the soundlevel slowly changes. After running a beat for 2-3 minutes, the soundlevel slowly goes down to less than half volume, stays there for 1-2 minutes, then slowly goes back up again to normal level. No messages on the display. There is no problem on the headphone output
- Try reverting to a previous firmware version.
- Use different patch cables and then into a different amplifier.
- If neither of these works, s contact firstname.lastname@example.org
Let us know how it turns out.