I also have a 3311 and a broken, with Denon for repair 3312...(both have been back to Denon in less than a years service)
have you tried Audyssey DSX, with either Heights or Wides? we like Heights best, but have a large room with tall ceiling...
if it were me, I'd also consider the new Onkyo, 929, iIrc...maybe it won't break...but, they do tend to run HOT, so if you can keep it out of a cab, that would help...