I know there have been discussions on lag but I am still not sure about the answer to this. If you calibrate the lag to 50 ms does it also send out the audio 50 ms later through optical and the video 50 ms through hdmi? I tried testing it out but I can't tell for sure and something still seems off. I am asking because if it doesn't it might be a good idea for me to invest in an AVR that has audio delay settings.