After a series of quick brownouts reset all the settings on my Onkyo 595, I was going through and resetting all my speaker distances. My system consists of Polk R10 mains and surrounds, CS175i center, PSW350 sub in a 12'x14'x8' room. The distance from listening position to both mains is 13' (measuring to the tweeter). The distance to the center is 11' and to surrounds is 8' and 10' (due to placement issues on the right surround). I have a few questions that I hope someone can answer: 1) Can room acoustics or placement throw off the time alignment of the center speaker? I was trying different settings for the center just out of curiosity, and it seemed like setting it to 10' (3ms delay) instead of 11' made the front three speakers sound like one cohesive unit instead of separate speakers. 2) While I know this is a cardinal sin here, the center speaker is unfortunately in an entertainment center's nook, hanging about 4 inches out of the little cubbyhole and angled down toward the listening position (and when a woman insists that you can't move it somewhere else, you just CAN'T). Could that be causing time alignment problems? 3) If the room itself is affecting time alignment, is there a way to objectively measure what the center delay should be to counteract it? Or can someone tell me what quality exactly I should be listening for when it is properly adjusted? 4) In the case of my surrounds, I have one at 8' and one at 10' distance. Do I split the difference and set the receiver to 9' or do I set it to whichever speaker is closest (in this case, 8')? I know this is mostly me being picky, but that's just me. My mains and surrounds are currently wall-mounted (via keyhole slot), but I'm gonna put them on B-tech mounts soon to both get them off the wall and allow for better aiming. Any help anyone can offer would be nice, and I can put up a quickie page of pictures of this room if it would help.