But they're not for retail sale anywhere?
I was planning to make one with the typical CI as lows, ED29689 as Mids and another ED29689 as highs. I only want to use a high frequency cross over and try to use other things to tune the bottom and the mids. Wonder if it'll work. Are the frequency outputs of the two drivers around the same loudness? CI seems to give off 120db of bass on the graphs while ED only gives 100db of mid/high.
Don't use 29689 for mids use some other ED driver.
If you want use mid driver as full-range - pick driver that has higher impedance >10 Ohm. Overall ED family would be good choice.
Level bass output of CI with small resistor ~20 Ohm if combined with mid-tweeter driver or ~40Ohm+ if combined with full range driver.