I went into the studio today, and my preamp was buzzing like crazy. The humming was cut out by my compressor, but when I played and the noise gate opened, it sounded terrible. I have no idea what could have happened. It was only throught the XLR output, and I couldnt hear it in my monitor. I had the ground switch on, and everything, but it was horrible. I ended up having to go straight into the mixer. Anyone have any idea where the buzzing could come from? I here is my setup: Korg DTR-2 -> ADA midi Preamp ->sidechain out to Behringer Composer Pro-> back to ADA -> XLR to board any ideas would be greatly appreciated sidenote: does anyone else know about the ADA MB-1 being a horrible studio preamp? It is great live, but it is very noisy in the studio.