I would have a recent problem with my profiler (which I have owned for many years and is updated to the latest firmware):
After some time I play (I'm a bass player) like 3/4 of an hour, or 1/2 hour, the volume of the main output decreases (halves, and perhaps decreases even more). The first time it happened, of course, I checked all the cables and connections, but then I realized that if I turned it off and on again, the volume was back to the right one. Now it often happens...
Can you help me? Thank you