Sometimes my KPA makes no sound after booting up.....I turn it off and then back on again and that seems to fix it....anyone else notice this? I have done a search and it seems not but thought I would check. I got the unit from Sweetwater just last week so I am sure I can exchange if the issue is my particular KPA.
main output - xlr - atomic reactor. I also have my midi pedal plugged in +/- a usb stick. That's it.