I have an Arcam DV 89 connected to a parasound C2 via digital coax for sound. In the ARcam 'Audio' setup, I can select. 2 chanel PCM or 2 Channel Bitstream, or 6 channel bitstream. Is there a correct setting for listening to CD or DVD? 2 Channel PCM seems bassier for cd listening and 6 channel bitstream has the correct 5.1 encoding, any ideas?