New Member here..

[SOOTSHE]

Here's the schematic.....by Jim Easley

[Panomaniac]

Thanks for the schematic, it's interesting.
Nominally, it's Butterworth with LP at 625Hz, 2nd order and HP at about 1500Hz, 3rd order. Plus adjustable high and mid EQ for the horn.

But that's just nominal. I'll have to see if I can figure it out with actual driver impedances. Wonder where the acoustical crossover point really is?