I want to change the crossover between the grave and the medium.This section of the crossover is 12dB/octave (second-order filter).The other section is 6dB/oct. and it is perfect.Crossover 12dB/octave reduced transparency of sound produced by the medium. It is a loss of detail and the appearance of a hazy veil.It's a shame because the bass is very well made and exceptionally rich.The top of the spectrum is also very well made.In summary, I do not like the sound produced by the filter 12dB/oct.
Thanks for your help.
Frédéric