Hello, this is my first post. I'm looking for assistance in calibrating my Sony STR-DE935 receiver. Specifically the following: 1.) D. Range Comp. 2.) LFE Mix 3.) The Bass, Mid. and Treble settings for the front, center and rear speakers. (Each have a Dbs. and frequency option). I currently have the receiver on "Auto Format Decode". I don't know if this overtakes the above options that I mentioned. The manual isn't too much of a help when it comes to these options. I'm using Polk RM6700 speakers. The front speakers are approx. 17 feet in front of the listening position and they aren't toed into the center (they are facing straight). The center speaker is about 16 feet in front of the listening position (same height as the front speakers). The rear speakers are to the sides of the listening position about 7 feet to the left and right of the listening position. All speakers are about 5.9 feet off from the floor. Thanks in advance!