Hi! The subs can fed both analog and digital via AES. From the sub you can feed the satellites via Analog out (which makes it possible to use the Satellite-offset and Lineariser-functions) or AES as well. Yes, the subs are compatible with every monitor out there. But a phase-linearized sub/sat system will only be possible with the MK2 monitors in place. The speaker conversion in the MK2 is very good.