Is anyone using only HDMI connects for audio & video from their Tosh XA2 to their A/V receiver?

If so, what audio out settings are you using on the XA2 (HDMI=auto, PCM, etc., SPDIF=bitstream, etc.) Also, has anyone calibrated their audio incl BM from the XA2 using one of the DVD discs like Avia or DVE?

I'm trying to get an idea of what sounds best. Again, only using HDMI. Some XA2 owners have only calibrated their A/V receiver and not used the XA2's settings for audio. Others have calibrated their receiver and also the XA2.

TIA,
Erock