I need some advice before I start to calibrate my system. I have an Analog SPL meter and AVIA disk is on its way. I am currently using the H/K AVR55 dolby digital receiver. The volume goes from 0 to 70. The channel adjustments can vary from -15 to 15 for Left, Right, Surrounds, and Sub; and the center goes from -10 to 10. I would like some input on where I should start to initially set my levels. I have other emails where their settings for the channels don't vary as much as the H/K. If their is any other H/K owners that have calibrated a similar receiver I would appreciated any input. Thanks. Daniel T.