hi all,i,m doing a charity show xmas at our club it has it,s own system of speakers amps plus loads of other gear,what i want to know is this how do i connect my psr2000 up to this system, do i put jack plugs into the amp ,i doubt if i could plug into the speakers only because i don,t think the power in k/board will be enough to power these big speakers ,the hall has about 300 people ,many thanks mike