After a quick look at the McIntosh C40
Owner's Manual,
I believe you can connect the kilpsch rsw 10 Line input to either switched output 1or 2 of the C40 and switch on the speaker 1 or 2 accordingly,
I believe you can connect the kilpsch rsw 10 Line input to either switched output 1or 2 of the C40 and switch on the speaker 1 or 2 accordingly,