Do PA systems require special speakers? I already have a mixer and mic preamp that will do for now, and I have a pair of KLH speakers laying around. They are rated for 300watts at 8 ohms. Right now I can only afford a power amp, and i was looking at the Crown XLS 202D, which puts out 300watts rms @ 8 ohms. Eventually, we will purchase some nice mains and monitors, but for now we need vocals!!!