OK. I've got 22 - count 'em 22- traps installed now but I still have that dip that starts at 90 goes down 15 db at 111 and goes back up at 150. (it seems to be 5db worse now).
This frequency range is a bit critical for me.
There's a dip around 800/1k as well but I think this is either comb filtering from the big desk between the speakers and ref mic or the crossover point on my Genelecs (which makes sense).
-There's a bit of a floor/ceiling standing wave about 2 feet behind the mix position that I could put another trap in. (but would this affect that lo end dip?)
The front and rear traps go from ceiling to about 7" off the floor. Would filling these gaps have any impact?
As always any advice would be appreciated.