I'm having trouble getting the Super Audion Multichannel function working on my STR-DB1080QS. The DVD/SACD-player is decoding multichannel (Multichannel indikator is on), but the reciever is only playing in standard 2 channel stereo. I've connected the SACD player til the reciever by both coax-cable and a standard analog stereo cable. But it is only playing standard 2 channel stereo in the speakers. What am I missing here - do I need to connect the 5 channel analog in/output terminals also ?? I've not problem with the Dolby Digital/DTS multichannel movie playback.