Hello folks, As a long time weekend warrior, I really appreciate being able to absorb some sound wisdom (pun intended), tips and tricks from all of you. Thanks much! I have a gig coming this weekend in a 40'x56' room. The various acts (lots of African percussion w/voiceover, a four-piece jazz band, and a few vocalists with tracks on CD) are performing along the long wall. Here are some other notes: the ceiling is only nine feet there are a pair of 2'x3' columns 14' from the rear of the room, (20' from the left wall, 5' from the right) the room has a hardwood (bamboo) floor, sheetrock walls, and your standard drop-ceiling panels I've done a few gigs here, but not this detailed. The percussion instruments (djembes, congas, cowbells, talking drums, etc.) destroy this room with mid-lows (especially 315, 400), and I'm sure you guys have an idea what all the flat, hard surfaces do to presence on vocals. I'll probably have two 12" tops on sticks, two 15" subs, and two 12" monitors. It's definitely more than I'll need for this room (i.e., for the jazz band, I'm thinking I'll only put vocals and keyboard in the house, minimal kick & overhead), but it gives me what I need to enhance rather than compete with the stage. I'm just trying to get some ideas for quick, efficient sound-proofing for the gig. Let me know if you need any more information. Any input is greatly appreciated!