i want to buy the pod hd500x and i need to know how exactly to hook it up. I want to run it through my randall 4x12 cab and i know i need a power amp so im probably gonna go with a crown. On the back of the power amp and the pod i see mono left and right outputs but my cabinet only has one jack. So do i just run one speaker cable from one of the pod outputs and then one in and out through the poweramp to the cab? Or do i have to run both the left and right mono.