Thanks for the clarification/update. As far as being able to use both Keystations as controllers, that's good. But I do see the same problem that I discovered yesterday when I connected my second identical E-Mu 2x2 interface yesterday. The first output of the second device is missing. On yours, there should be a Keystation 61 MK3 in the Outputs Second for the first output of the second Keystation. On mine I am missing the first output of the second E-Mu 2x2 interface. That might be a p