regardless of whether the gui bears any similarities, this has totally different innards. FA is an iir filter with a parametric eq while crossvolver is a fir filter with drc.
crossvolver is actually the only fir crossover i've been able to find, which is nice because no phase correction is necessary. i know PA can correct FA's phase alignment, but i don't know if there is any other advantage to fir over iir. i made another thread about that..
[edit]
here's a free 3 way crossover. it's iir, but easier to set up than crossvolver, and i'm pretty sure you can just set your slopes to 24dB/oct and stay in phase.. but correct me if i'm wrong about that.
