Jason, Guillermo may be busy trying to wake up his sub. You say that you've checked everything; besides increasing the sub output level on the 912(good receiver)have you tried using speaker wire to the sub's speaker level inputs instead of coax from the sub out to the line in. Not that this is the best way to connect, but just to bypass the sub output on the 912 to see if somehow it isn't delivering enough voltage(unlikely). Disconnect at the mains and connect them to the sub(of course, set the 912 for no sub so that the bass comes out from the terminals to the mains)with the sub crossover turned all the way up if you don't already have it there. If none of that works, maybe talk with Joe.
