I'll be brining some bass traps that we can put in the corners and do a before/after listening test on the acoustics of the room. My experience is that they really tighten up the bass, but I don't know if it's universal in every room. It's not an equipment comparison, but it may be educational and interesting. And it takes seconds to stick them in the corners and see if we hear a difference.
Oh, did I mention I'll be bringing beer? We can compare if we are happier before or after a couple of them.