I have the preout of my denon 3312 hooked up to the behringer via rca to xlr, and have tried rca to trs as well. The subs barely make a peep. even with the amp turned all the way up, the preout for the sub on the receiver turned all the way up... they are not doing much.
I have checked everything 10 times. not sure where to go. S
Some have said i need a direct box, others say they are running the same setup just fine without it.
At this point I am ready to sell the brand new amp i bought and start over.