REW is pretty straight forward - I like it. I'm sure I messed-up something, but I was able to get the attached measurments for my left main

. The pink measurements are with no absorbers and with blue measurements are with cushions stacked in 1 corner. I think my sub is active in both, but I disconnected the mic & PC before thinking to check

.
The dip at 160 Hz and the peak at 184 Hz are dampened quite a bit. I was surprised that the cushions resulted in such a drop below 80 Hz and that it got all comb filtery - is that normal?. Any thoughts / recommendations?
-- Mikie