that's a good point shady...
but they are not exactly co-located...each mbm is about 30" from a trinity
again, depending on which option used, wouldn't it be best to turn off one sub on sub1, set level at 75 as per audyssey, then turn that sub off, turn the sub sharing that sub1 input on, set that sub at level 75 and then turn on other sub and set combines level at 75 and let audyssey calibrate from there? (doing the same routine with the subs on sub2)
make any sense or am i not thinking this thru...?