My guesses in no particular order: (1) plugged in to wrong output (but not likely), (2) bad RCA cord (not rare in my experience), (3) problem with the Denon's sub output (so try plugging into another output and see if you get anything - just set sub x-over to ON), (4) another fried EP800 amp, and (5) haunted sub (rare but I'm sure it must happen).



Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire