... thru the eall on out onto the street... ?
Well, now, I can't wait.... more than a decade or two for that.
I wasn't reffering to SPL... just better more even low end performance.... You did say for 'both' music and flicks, right?
I don't recall ever being thrown into the street by a double or electric bass, or baritone sax.
slide it up and down that side wall some and keep it off the wall at least a hands width or better... finding the spot shouldn't take long. You might even try facing it into the length of the room too... or just off angle.
An EQ for that unit will ease things immensely... they save a lot of sledding the sub around
Good luck.