Hi guys, I would appreciate your opinion on this: I just bought a SWR 750x head, and I have an 8 ohm 410 I want to plug it in. I also wanted to plug in the amp's extra out in one of my singer's two huge PA speakers (four ohm each) DIRECT. What would be the final ohm value for the amp? It can't go below 2.6 (which is an 8 and a 4 I believe) or it will blow... Alternatively, do you think I should run the amp through the mixer, through the PA, and finally through the speakers? I hope this makes sense... Thanks very much for your help, if you have questions just shout (loud).