How to bi-amp onkyo 706

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That's right - most calibration is -30 db (or 75db). Films are mixed at 85 db with 105 db peaks (115db peaks for the LFE channel).

But... 85db is 85 db no matter if your room is sealed or not. How much power it takes to get to 85 db is another story.

BTW - My room is sealed with the exception of a small door. It is also not large (18x22x8). My speakers are on the higher end for sensitivity and my amp pushes (or is supposed to) 100 watts. Prolly not quite enough to truly get reference, but I'm pretty darn close.

Now last time I seen The Who in concert it was outdoors. Previously it was indoors. Both times I'm pretty certain they were playing way above 85db. And I didn't care at either venue