OK, so just bought a new ashdown rootmaster evo ii 500. First gig with it tonight and the DI is causing a big buzz. Indeed, having exhausted various possible sources, it still buzzes when the amp power socket is out and nothing is plugged into it except the DI cable! Luckily, I can DI out my pedal for tonight but can the basschat experts tell me any solution other than I've got unlucky and need to box it up to send it back?
Hopefully the gig will take my mind off it for a couple of hours!