Is Bass Non-Directional In A Two-Channel Rig?

Mitch4t,
Sorry, I just realized that I did not completely answer your question... Also yes, you can put a sub behind you. Back at Marcof Electronics seems like 300 years ago, we had our own sub design. We buit an 8, 10, 12 & 15 inch model.. At some time or another we had tried each of these sitting right behind us, Maybe 2 feet, while the speakers were about 8 feet in front of us. Once spl was matched, they all worked well, undetectable.

"Again the box/enclosure is a giant passive upward frequency generator."

Only if the design/construction is incompetent.

Kal

I still find this research pertinent and it will answer some of your questions.

http://www.harman.com/EN-US/OurCompany/Technologyleadership/Documents/White%20Papers/multsubs.pdf

Kal

A room an enclosure and free air are all passive radiators so they all must be incompetent. Tom

08-15-11: Theaudiotweak
"You can hear where the bass originates even below 40 hz".
Well maybe if crossed at 40HZ @ 6 db per octave, maybe, but crossed @ 12, 18 or 24 db per octave. I wish that I could quote some test somewhere, but I have had hundreds of people demo subs that had no idea where it was, even when sitting on it crossed @ 80HZ @ 24db per octave.
I guess it is possible that your hearing is more sensitive at those frequencies than others or you could be dealing with room nodes???
No disrespect intended, its just that we have tested this theory countless times.
I have seen cars rattling windows a block away and no one could tell where the boom came from until it drove right past us...
Have you done some testing to substantiate this?