Seems I can only do an SPL calibration using the built-in tones on my receiver (Denon 3803). It's no use running the AVIA setup because I can only change the level output via the Denon's menu and when the Denon's menu is up it totally overrides the DVD output. Is there anyway around that? Also, what volume level should I set my receiver? I turned it up to "-05" and set the SPL meter on 70db and calibrated everything to +2. Is that retarded or does it really matter? Thanks.