I see no-one has any solutions to avoid the need to disconnect the HDMI cable from the HD621 in order to play CDs, SACDs and DVDAs with HDMI output from the source. Presumably then you must alternatively keep your display on, which is wasteful and unnecessary.

BTW, I note that M does not specify the HDMI standard for the HD621. I hope it is 1.3, otherwise we cannot listen to the new lossless Dolby and DTS formats.

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.