Hi guys, I have recently bought a used Jansen Crusader 440,with two 220W channels, and it has a switch for stereo, bi amp, or twin. Can i safely run a Peavey 350W RMS 4x10 quad box through this? The outputs in the back are XLR pins i think, (they are the same as mike cables), is it ok to buy some XLR to guitar jack cables to connect my speaker once i have bought it? Could some one also explain to me or point me to an explanation of linking the speakers in paralell vs in series? Thanks a mill.