Originally Posted by Zelda_fan
My speaker setup isn't TrueHD ready, so I can either have my A3 send out a DD signal over optical (bitstream) or send out a PCM stereo signal and have my receiver decode it via ProLogic II. Which is going to get me better sound quality?
Over optical: Go with DD bitstream. PCM over optical will only give you fake matrixed surround, while DD bitstream will give you true discrete 5.1.
The ideal would be sending your receiver PCM5.1 (not PCM stereo over optical), but your receiver needs to support HDMI for that instead of optical.