So here are some early results of the 8CXT. First the raw response, 7ms gate with NO smoothing, 1 meter away:
I knew right away the woofer would be fairly easy to work with. The dip around 2khz is easily smoothed by a high Q low pass. Here is a LR4 @ 2200hz with super quick two component crossover:
Should be easy to get what we want. The dip around 700hz should also be taken care of fairly well in a similar manner. Once you add the high pass to the woofer this area will be the middle of the midrange passband and you can adjust the peaking of the transfer function here pretty easily, lifting the dip to flat.
The CD does indeed look a bit daunting. While I didn't really try to get it smooth, I just wanted to get the overall contour flat, as it has that hill at the low end and then shelves down above that. That sort shape is fairly difficult to deal with. Another quick pass at the crossover gave me this:
Not the smoothest. The good news is the crossover area on both drivers is decently smooth so the integration there is good. It all depends on how you think that upper treble will sound. Some well placed notch filters may smooth out the upper end significantly, but I haven't looked at that yet, just thought I'd throw this up for now.