You should never be able to tell where a sub is located in the room (other than just knowing it’s over yonder because you put it there or can see it). Depending on your particular room, it may work out for you where you describe, but it may not. I can tell you that I had the 600 about three feet away from the couch (directly behind) and it drove me nuts. I could tell it was there. I’d love to keep the darn thing there as where the room likes it, it takes a lot of space. Which, that in itself is a pretty strong case for going with multiple, smaller subs verses one large sub. Sure wish I would have gone with two or three 500’s verses the single 600. Oh well, live and learn and there’s always the ‘next’ house that I’ll build.
I agree with Mike, but will add that you should calibrate your speakers/sub to eliminate any sense of the sub being nearfield.
