we had a gig last night,our set up is a DR202 drummachine and some synths...when we started there was a fluctuation of our sound output...it was really a pisser..i didnt know what happened...could it be that the main board mixer couldnt handle the low freq /sub bass of the drum machine?it was like fading in and out...cause when we put the volume on low like on 2 or 3..it was working out so well..when we turned it up it got crappy...i need some info on that one....need help..i really dont know anything when it comes to low frequencies...mixers and all that

Gotta be a failing power supply somewhere. Probably a low-current one.