I have a simple question for you guys. I have all my speaker levels calibrated to the same SPL level at the sweat spot. The question is this, what do you guys set your subs SPL relative to the rest of your speakers? I'm just curious what everybody else sets their levels to. Mine is set between 10 to 15 higher, is this too high? Sometimes the base is just right, sometimes it seems too high or too low. Thanks for the input:)