So don't laugh at me. I just traded in my MC300 for the MC452 from audio classics. Adjustments to my Blinn rack so it would fit, me struggling to get it in the slot (bad idea), plugging everything in, turn it on, and voila! extreme ground loop noise. I troubleshoot for like an hour and then notice there is a "balanced/Unbalanced" switch on the back of the 452 and I'm using XLR cables with the switch on "unbalanced". Of course i make the correct "adjustments (simply move the switch to the appropriate position) and voila! no buzz!
There is, lets say, very minimal buzz now and i plan on getting a dedicated circuit. Just need some cable cleanup and its good to go..
My first 2 music selections to listen to my new 452:
1. Thomas Newman- "Come Back to Us", 1917 Original Soundtrack
2. Hans Zimmer= "Herald of The Change", Dune Original Soundtrack
Needless to say, I thought the MC300 was good (and it is), this 452 is well, you know...
