I am trying to use my M700s in a dual-purpose 2-channel/home theater setup. I have a DSD connected directly to my M700s via balanced XLRs (for 2-channel), and Marantz front/left pre-outs connected to my M700s via RCAs (for home theater). Obviously, I’m only sending a signal from either the DSD or the Marantz at any given time.
Both inputs work fine/as expected when connected independently - i.e., one at a time. And the XLRs work whether the RCAs are connected or not. But, the RCAs do not work when the XLRs are plugged in - i.e., I cannot get sound out of the Marantz pre-outs if the XLRs are connected. Is this expected behavior?