Hello. I have a Technics SBL-51 Linear Phase Speaker System Impedence 8 ohms Input Power 75W music 50W din Crossover Frequency 3500 hz. 8000 hz Output Sound Pressure Level 92 db/W(at 10m) And I am looking for a powered mixer with 5 XLR inputs. What kind of wattage should the mixer have for my speakers? Is this mixer recommended? http://www.zzounds.com/item--BEHPMP518M Thanks!!