Scott,
I think we were typing at the same time...
I'm set up fairly straightforward: all speakers to large, sub crosses over at 60. I think my sub level is at 0 or -1 dB in the config menu. 2-ch sub offset is at -4 dB.
When I try to trim sub level with the remote, I get no effect until -12 dB, at which point the sub makes a huge jump in volume -- it's unlistenable.
Prior to that, I can go from +15 dB to -11 dB with no discernible (using a quick by-ear and touch-the-driver test). Certainly not the change that I would expect with a 24 dB swing.
I'll continue to check it out tonight (time willing).
-- Otto