I have changed my configuration to have my 2 HDMI sources connected directly into the HD621, rather than my VP50 first.

I have my CD player via TOSLINK direct into O1 on the 568.2MM. This works flawlessly.

When I tested my 2 HDMI sources with CDs, there is no sound after about 3 seconds if the HDMI video out on the HD621 is connected. Once the HDMI out is disconnected, sound is heard.

Does anybody have any suggestions how I can avoid disconnecting the video every time I want to listen to MHR audio only?

Home: BDP-103,G61R, HD621, Quad520f, 2xInnersound amps, 3xQuad ESL-63s, 2xJL Fathom F112 V1 subs, 2x Gradient SW63 subs.
iFi Zen Stream , Audeze LCDi4.