at the moment, i have one of the first surround processors put on the market (yamaha SR-50), and i will change it in the future for something better (thinking about the Integra DHC-40.2).
i will also need a 2 channel amp for the back speakers; the whole system will be 4.1

i think the Behringer EPQ450 would be ok for power, but i would like to have some opinions about the quality and durability of that company's amps when used in a a/v system.