3 way Open Baffle Project : Crossover advices

Hello
I have an open Baffle 3 way project using a 15 inch Monacor woofer, a 6 inch Faital for the low mids and a seas 27 tdfc Tweeter. The woofer is set in an Hframe ( circular !)

I gave the frd and zma files (from constructors data) to Xsim. I simulated the cross this way :

  • 12 dB for the woofer (around 250Hz)
  • 12 dB for the high Pass of the of the faital and (also around 250hz) and 18 dB at 3000Hz
  • 12 db for the tweeter around
I initially aimed some LR for the cross over but changed the values to improve the global linearity. After inverting the phase of the woofer I got the respons shown below ( I post the crossover too). Next step is going to be the measurement of the speakers in the open baffle before I start creating the filters.
OpenBaffle3way Respons.jpg


OpenBaffle3way.jpg


As i 'm planing to go multiamp (class D for the low and probably AB for the mids and highs), i'm thinking of using an active crossover, rather than expensive passive components , at least for low/mids but i don't really where to start.
I saw some cheap active crossover on Aliexpress. I also saw the analog filter of Nelson Pass, but i would take some time too build...
Thanks in advance for your advices and thoughts
 
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Your crossovers will likely be heavily influenced by the size and shape of your baffle. In typical designs, the necessary equalization to counteract dipole cancellation and the crossover often blend together. You can model this, but if you want to do anything unique with baffle shape, acoustic measurements may be easier depending on your skills and interests.

Analog active filters can be made to deal with dipole effects, as Linkwitz demonstrated, but the flexibility of modern DSPs is far greater with much less work. Even Linkwitz seemed to be leaning this direction in his later work.
 
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