Also, unless you already have a 2400, you may want to think about a 1300 or something even lower. Not sure what you are going to be using the room for, but if you have powered monitors, then you don't need any power in the receiver itself. Are there any inexpensive preamps out there?
Also, as far as I know, most of the dance clubs I go into have racks of amplifiers and use dozens, if not hundreds of speakers to fill the room with audio and extraordinary bass. You can get a sound from those speakers, and I would think they could sound decent. But, clubs exist by selling their atmosphere and if the music is part of it, they will spend several hundred thousand on it.