I'm wanting to do surround sound home theater with active speakers. I have a pair of JBL 308p's and I like their sound a lot. I want to do a 5.1 system with them. I am currently running them 2.1 via my pc and initially I had a hum until I went with balanced cables. So now I am trying to find the best solution for processing my 5.1 (or eventually 7.1 or 7.2) signal to all active speakers with balanced cables. denon dn-500av? Or perhaps an AVR with rca pre-outs and then something like the Behringer HD400 between the avr and monitors? Any suggestions? By the way, I am running an SVS PB16 Ultra.