We have been using the goldenear freestanding subs lately. On a job now where there is a triad Inwall in the back of the room and a goldenear in the cabinet. The goldenear is player quite a bit lower than the triad and costs less than 1/2 the price. We have done a few of the sun fire inwalls with good success.
There's no worse feeling than that millisecond you're sure you are going to die after leaning your chair back a little too far.