Starting up an open mic night, so want to buy pa speakers. Want powered ones but cant choose between PEAVEY pro 12 or 15, ALTO PS4, or WHARFDALE EVP 15. All about the same price (ALTOs slightly more wattage - 400w), but wanna make sure I'm getting a quality product. May want to use them for more than just open mic, eg. future band gigs etc, so also need versatility. Dont know much about the technical stuff so need people's opinions on which has the best sound. Would go for the Mackie 450s, but they're too pricey. Ideas anyone??