Hey, I just got my QSC MX-700 amp and excitedly hooked up. I grabbed the remote, turned her on and played some music. To my disappointment there was barely any output! I had both chan 1 and 2 gains full on the amp and there was barely any bass going to my sub. I checked all my connections and everything looks correct, I can't figure out whats going! Here's my set-up Yamaha HTR-5640 subout to: Behringer FD pro 1124 to: QSC Mx-700 amp. I properly bridged the amp by bridging both channels together (also tried both chan 1 and 2 seperately) in the back of the amp and checked the gain level on my receiver and BFD. Whats going on here? Isn't 700 watts supposed to be able to push my Sealed shiva hard!?!? I'm running out of patience and I'm starting to think I bought a crappy amp off of ebay. PLEASE someone help me out!