Travis1000
Well-known member
Hi all, the studio my wife works at recently just purchased this Collins mixer. It's already been modified for direct outs and works fairly well but they are trying to understand a little more about the gain staging as well as input impedance of some of the channels. We're trying to identify and the see if there might be a manual or schematics available. When it was purchased they said this model was built in the mid to late 50's. Any help would be appreciated.