Hopelly this isn't too dumb of a question, but I'm trying to get a handle on understanding reference level and calibration. I've been reading several different posts on the subject and now I'm wondering if I was making it harder than it actually is. Anyway, I need to put it in my own words so I know if I'm actually understanding it correctly... From what I'm reading, your so-called "reference level" is actually wherever your volume knob happens to be set when you register a level of 75db on your front speakers using Video Essentials and your handy dandy SPL meter from your main listening position. You then leave the volume knob alone and use the receiver's other settings to tweak the center, surrounds and sub until you get identical readings all the way around. Now, let's say your initial volume setting was -34 (again this has nothing to do with the db level of the speaker, it is just the volume setting that allows you to reach the desired db level.) Assuming this is the case, you should not encounter levels above 115db from any one speaker during DVD playback. Obviously, if you use a higher volume setting after calibration, your could get levels higher than 115db due to the increased amplification. So, what's the consensus? Do I get it or am I missing the boat somewhere? I'm still lost on frequency equalization does anyone know of a good thread or external link that gives some basics on that? As always thanks for the help!