| Re: This what i got so far
Admittedly, the sub only plot looks quite good, but your sub + mains graph has revealed an interaction that may require some BFD filtering.
The BFD obviously has a lesser effect on the combined (sub + mains) response as the frequency increases, but can still provide useful equalization at and somewhat above your crossover. This may be useful to you in the 60Hz to 100Hz area shown in your combined graph.
Generally, we suggest a sub only response, that is then filtered with the BFD to create the desired target. Then add in the mains to check for interaction and adjust phasing to get the best results. Then, if there is an interaction problem that phasing can't remove, do some minor tweaking with the filters to try and solve the problem.
I completely agree with Sonnie that problems are exposed with the sweep provided in REW that 1/6th octave single tone measurements don't let you see....
brucek
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