Hi

You'll need a controller of some sort for them, as they have no IR eye for direct control from an MSR. The 218 seems the obvious choice of the moment but the AC200 would do too. Also seem to recall that the AC200 USB is not asychronous (?) but the 218 is, so what you lose in front panel controls you perhaps gain in sound quality with your Mac via USB. If you run Roon, the 218 is the clear choice I'd say.

Cheers


George