Originally Posted By: dewd
On the Onkyo's (and I assume the Denon), the volume makes no difference. The test tones are set at -30db from reference (or 75db actual).


Kk this makes sense. On my Yamaha, you have to adjust the volume manually when running the test tones, while in automatic calibration (YPAO) I suppose it must be something similar to what you've mentioned (-30db from reference).