Has anyone tried the Coincident Dynamo 34SE

I just got mine today, and I'm having a hell of a time with hum from the amp and through the speakers. Tried everything I can think of, but nothing seems to help. Headphone listening isn't possible due to the severity of the problem. It sounds like a great amp when it's turned up, but at lower levels the hum is really distracting. Have any of you come across this type of problem?

Thanks, Scott

Israel suggested that it's a ground loop problem, but I'm getting the hum even when there's nothing plugged into the circuit. Keep you posted….

It should be arriving today - I'll let you know!

Well, finally got the Emotiva CMX, but the hum is exactly the same. Nothing I've tried has made any difference. So, it's back to Coincident in Canada for service. Hopefully, they'll be able to diagnose the issue quickly and get it back to me relatively soon. Shipping took three weeks to get here (Oregon), so at that rate it will probably be a couple of months before I get the unit back. I guess I'll just pretend that I like my solid state amp in the meantime :)

Thanks to everyone for your suggestions. I'll let you know when I get it back and how it works out.

Best, Scott