This sounds like it might have to do w/ the main outs. Had a simliar problem, but its only a generic part & not that expensive to fix. Where do you live, you might even be able to bring it to a local technician just to get that part replaced. But don't take my complete word on it , did you call tech support yet?
Originally posted by tails:
My ASR10 started generating some annoying buzzing sound after a couple hours of use. This happens randomly. And it only happens whenI playback the sampler through the Fx buss. I think it's main outs. Is this a major problem? I will have to send the thing overseas for servicing is needs it.