You can also try Electri-Q. They have free version "Electri-Q - posihfopit" which have EQ crossovers...
wich would be a better choice
ls_filter : 4 way active setup, (one instance) 3 filter type ..bessel...buterworth...Linkwitz 6 to 24 db....the downside is that their is a 3 band equalizer per chanel ...but we cannot really touch it ...and the 3 band equalizer has already 3 values (?????????????????????)
or rubberfilter :
need 4 instances..
The free Rubber Filter VST plug-in by Christian Budde is a highly versatile 6-384 dB/Oct filter. It features low pass, high pass, band pass, and band reject (notch) filtering, with individual control of left- and right channel.
i think it is all buterworth filter
i personally use individual butterworth/chelbychelv filters for each output, but this is mostly becsue i hate relying on one plugin for all my crossovers, and really don't want to take the time to learn how to use lsfilter, or electri-Q.