Nice comedy routine you have there!
Yes, 11 x 12 is not optimum, but it is certainly possible to get great hi-fi, high end audio quality in such a room.
I have a room slightly larger than that, with well placed (mostly DIY) room treatment, and I have no problems getting the speakers to disappear, with a soundstage that extends well beyond the outer edges of my speakers, and quite deep.
Sure, it took some work to get the bass to sound right, but it is definitely high end sound quality.