[edit: It just occurred to me that I'm not sure if this should be in speakers or receivers, so...I appologize if I posted it in the wrong one. Its a combination of receiver features and speaker placement I guess.] I've been attempting to calibrate the audio portion of my new HT setup and I've run into a small snag. First off, I'm going to be redoing it in about a week anyway when my copy of Digital Video Essentials arrives, but for now I've been using a THX Optimizer, even though it says the test tones aren't meant for setting exact levels. I'm shooting for 75db on a Radio Shack analog SPL meter. So keeping that in mind, here's the problem. I'm using JBL S38IIs as my front speakers with a Panasonic SA-HE100K receiver, and I can't seem to get my L and R main speakers to match. This receiver only allows level adjustments for the Center, Surrounds and subwoofer. So I can't +/- the level for the L and R mains to match eachother. It has a balance adjustment but for the sake of imaging I'd like to avoid using that to compensate. What I think is causing the problem has to do with the placement and the room but its nothing I can think of a solution for. Both speakers I attempted to give at least a foot or two on any side from the walls. The left speaker however is just past a large openning in the wall which is a big sort of window/bar thing to the kitchen. The right speaker is the one that seems louder and I'm thinking maybe its because the left speaker isn't reflecting off a wall as much and sound is going into the kitchen. So I tried moving both speakers around a bit to compensate for this but I'm not really sure what to do while keeping them an equal distance from the listening position. As I said, I'll be redoing calibration in a week anyway since I'll be getting DVE. The receiver is my roommate's and eventually I'll be getting my own (probably an H/K, but whatever it is, a little more expensive than my roommate's). Do most serious receivers (Onkyo, H/K, Denon, etc) have an adjustment for main L/R speaker levels? I could see one of them being fixed but would think you'd be able to adjust the other to compensate for acoustic circumstances such as these.