By "bass black hole" do you mean that you hear sufficient bass in other places of the room?
yeabut none in other areas like 5 feet awayi have to keep the volume at 35 to 40 depending on the channelas 42 to 48 is too loud(higher Frequencys) (this is what i used at the old house)i had 1 sub over there but everyone was using as a table so i moved back were it was
reply to Anonymous_ Sounds to me like acoustic cancellation. Try moving the sub, or move the couch, or both, or change the dimensions of the room.
i had the sub#2 there by the couch and it worked Well there (everywere you can hear it) but they were using my sub as a table and it got a scratch from careless people laptop speakers sound very loud(dime sized speakers)it can over ride my sony 5.1 system even at MAX