Here is the space, a large classroom: 20' x 40' long, 12' high. Tile Floors, Brick Walls, Drop Ceiling, Sound Panels up high Here are some pictures: Pictures by centralregional - Photobucket Any thoughts on where to place them (and any room mics) in this location for optimal results? Normally I think that the building materials would be a problem, but that space is so large and there is so many objects in it, it helps reduce many of the unwanted reflections. Being in a school, I am going to use some giant hard foam gym mats as baffles. Thanks for any input! I am going to be getting sounds and starting recording tomorrow.