I just recieved my Outlaw audio 990 and am awaiting my 7125 amp. This is my first Pre/Amp combo and I'm not familiar with the unbalenced inputs. The unbalenced inputs look like regular RCA connections. I was going to use regluar Monster cable THX RCA cables. Is this what I'm supposed to use. Outlaw mentions XLR cables at some point. What is the difference if any between XLR and RCA inputs? ANy help would be greatly appreciated. I can't wait to get the 190 watts a channel into 4 ohms beast into action.