Ok, I have my sonosub built(tempest driver), and I am having problems getting power to the amp. I cannot get any sound from the amp to the woofer. There is a loud hum in my center? speaker when I connect my LFE out to the line in on the amp. I did not do anything special to the amp, since there were no instructions included. There are two wires under the plate. Do I need to connect these to something? I ran speaker wire from the amp to the sub and no sound. I verified that the two driver coils work by connecting my main speaker wire to the sub speaker wire. I am pretty certain that the LFE out from the sub works, as it was recently connected to my Velodyne sub that worked fine. What do I set the dials to? I tried a variety of setting and got no sound other than the center speaker hum.