Right now I have an EMX860st and 2 non-powered Yamaha speakers. I just bought a passive monitor yesterday and realized how much better it sounds. Now on the back of the soundboard there is ports for monitor and speakers. I guess what I am wondering is how to setup a proper sound system. The room is about 50 ft by 50 ft. There are microphones and instruments. For this kind of operation should I have 2 speakers or 4 and should they be powered or not? I do have a firepod that I bought by it does not work with the two speakers I currently have so I am going to be buying an amp for the firepod. Should I buy the amp and powered speakers? Also I just bought a passive monitor that I set on the floor and it sounds so much better then the speakers I have so thats what got my thinking that my setup is all wrong.