That means that the 2807 is receiving a multi ch signal from the HD-A2. Basically the HD-A2 is doing the decoding. You probably have the "Digital Output HDMI" setting on the HD-A2 set to PCM. If that's the case, change it to Auto.
edit: That assumes you are talking about Dolby Digital and DTS and not Dolby Digital Plus and DTS-HD which would always be output in PCM.
edit: That assumes you are talking about Dolby Digital and DTS and not Dolby Digital Plus and DTS-HD which would always be output in PCM.















