I have always found it awkward that we are expected to place a sub off to the side somewhere when we can't have it right between the front speakers. A friend of mind mused that maybe a sub would be great right behind the couch where it will both be centered and also give some great rumble to the seating area.
But I am reticent to try this out because I feel like maybe some of the punch and articulation will be lost as the driver fires directly into such a thick, absorptive object like a couch. But then again I'm using Monitor 70's which can go pretty low on their own and my crossover is set at 60hz; so the sub in my case is generally just handling the very low bass in the first place.
So where do you all keep your front-firing subs? What sort of results have you had with moving them around the room?
FYI - I'm running a PSW 505