I recently acquired a Dynacord Powermate 1000 Mk2 powered mixer from a friend of a friend of a friend. The mixer came with 2 pairs (4 boxes) of EV SX300's, a pair of EV LM-8's and a pair of EV LM-10's. As I don't know this mixer at all, I'd like to understand how many loudspeakers, and in what combination, the Powermate can drive happily on its own? For instance will the Powermate, on its own, drive 2 x SX300 tops and 2 x EV Passive 18" Subs? Does it have the power to do that? Is it also able to drive a couple of EV-LM10's as stage monitors in addition to this? Or am I barking up the wrong tree and asking too much of the built in amp? Or will it drive everything? ie two pairs of EV SX300's, a pair of EV 18" Subs, a pair of EV LM10's and a pair of EV LM-8's?. If not, how many amps would it take,. I've had the mixer and the speakers all safety checked and serviced - so it's good to go, I'm just worried that adding too many speakers will melt the amp. I don't really understand how adding speakers affects ohms either...so maybe this could be explained to me? It's best to imagine that you're talking to a small child...this is my first post btw! Thanks for your help! Cheers, Junglist