>>If the home theater/surround/media vendors want broader acceptance of this stuff, they need to do a better job of documentation and standardization.

The HT industry found a better and cheaper solution -- crappy little mains that don't have a hope of overlapping (doubling) with the subwoofer. Doesn't matter what setting you use with 90% of the HTIB's...

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8