Hi,
At practice last night my Ampeg 7 Pro kept shutting down and powering back up by itself. It was running fine for a couple of hours. Then it started shutting down for 5 or 6 seconds then came back on... stayed on for a few minutes, then same thing again. Happened a dozen times or more before I shut it down for good. For the times it was running in between shut downs, it sounded fine. Any ideas? I came home from practice, switched speaker cables, power cables, cabs, and the fan is working. Just running my passive bass straight into the amp. No effects. Gain is at 1:00, Bass is at 2:00. Everything is at 12:00. Compression is at 9:00. Ultra low not engaged. Serial # is SVT7PROANBX0027. Revision is A00. I got the amp from a guy at Ampeg in a trade about 4,5,6 years ago. So I'm pretty sure it isn't under warranty. I live in Canada, so shipping it to Ampeg could be a problem. There is a local dealer about an hour away, but I'm not sure how familiar they would be with the issues that some of the 7 Pros have encountered. Any suggestions?