I've run into something kinda similar with my 3805 and EP-350, but sometimes I've gotta crank it to -25 db before it'll turn on. And this was Paul's Boutique, and album with pretty good bass! Sometimes I just go and pull the coax in the back, plug it back in,get the load humming noise ('cause invariably I've got the volume up) and magically there's bass again, usually pretty strong too. i looked in the denon manual and the manual for the ep-350 and i really didnt see anything to fix this. i suppose you could boost the bass signal sent to the sub from the reciever but that'd probably mess up your EQ curves and whatnot...
