| Re: Question about "reference" calibration.
I'm not sure if this adds much to the discussion, but just as another data point I usually listen to movies between -15 and -20 on my Yamaha. It can go above 0 though I'm not sure exactly how far, maybe to +8? I don't know why you'd ever be going above 0 anyway unless you're either deaf or calibrated extremely improperly.
When first setting up REW I calibrated the SPL meter signal (with the REW test noise) and it was 75dB at -20 MV. What is funny is how when you're done EQing if you go back and recalibrate the SPL meter signal I had to turn it up to -11 MV to get the same 75dB. Obviously when you're doing 10 and 12 dB cuts over wide areas of the sub-100Hz spectrum that test signal SPL is getting cut right along with the rest...
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