Thanks d00d, but while I was waiting, I made a discovery! Anyone wanna buy a MiniDSP??
Check it out. Same placement (1/2/5/6) but without
the MiniDSP. I had to invert the phase on the 2 rear subs (since I lost the time alignment ability with the DSP) and re-calibrate the levels (so they may be off a tiny bit from session to session), but I'd say there's a substantial improvement in max output.
Audyssey off, LFE only.
Before (with MiniDSP) / -23,-21,-19,-17,-15,-13:
After (without MiniDSP) / -23,-21,-19,-17,-15,-13, -11,-9
Without the MiniDSP, no matter how high of a sweep I ran (max was -9), I had no funny noises
from the subs at all. I did however get a warning about clipping once I got to -11...I measured -9 anyways (and got the same warning). How do I measure higher without getting that warning?? Looks like I started compressing at -9 (but could that be the "clipping"?).
I hateses dirty MiniDSPeses.