Started my conical horns yesterday... they are so much easier to build than the tractrix ones I did! For Alpha 6 driver and hopefully 300Hz-1.6KHz response as hornresp says. 60deg by 45deg dispersion... could not make it 90deg horizontal because physcially it would be too wide to fit in the towers. 60 aint bad anyway.
Here are some pics
Probably do measurements on it with Speakerworkshop tomorow. Wish me luck I hope I get the range I want this time!