Thanks for this info Fran.
Yes i think i will bring in some more Helmholtz Absorbers.
When i want to calculate the sabines for a helmholtz absorber, is this just the port Area of the resonator what matters? Or resonatorport plus mouthcorection?
Is it more efficent to have many small resonators, or some bigger ones.
i think more smaller ones, because the port area is bigger.
I am still struggeling with the 100hz celling to floor mode.
i think i have to angel my cloud and ad a rigid back!?
But i will wait until my subwoofer arrives. i hope that the woffer fills this dip a little.
I will keep you updated
great forum
cheers
Mika