McIntosh C 2200 is only a Tube Pre-amp which is used to listen to the stereo music via the front speakers. My blueray player is connected to Onkyo 5507 with a HDMI 1.3b cable and let Onkyo 5507 decode the HD surround sound (7.1).
This is a normal connection if you have both a surround controller and a stereo system. It is also why most of the Pre-amps / Integrated Amps come with a Bypass/ Passthru input for connecting the AV Controllers.