Them's purty.

Placement question - I'd have thought that a more valid testing array would put the speakers in the same order L-R on BOTH sides rather than symmetrically. The current picture would indicate that all of the pairs have different spacing both between them and relative to the side walls. I'd think that either one of these factors could affect the outcome. If you took the example to the extreme, having one pair in the middle of the room 10' apart would give you different imaging than another pair that was 16' apart and next to the side walls, wouldn't it?

bibere usque ad hilaritatem