project, 2 pair 412s with 931-12A horns.

[Phil-G]

Measured specs of all of the 412s?

TIA,

GM

i can't find any specs for a 412/419. Same basket and magnet as the 414 8a. the only thing i can find is, the 414 is about 5 DB louder @ 1 watt than the biflex.

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Yeah, I got nothing in a search and frankly, can't recall even knowing they existed other than maybe seeing them in a catalog.

Re orientation, the higher the height to width ratio or vice versa sets its primary polar response, so for up close monitoring, horizontally wide to control/minimize its horizontal response and minimize c-t-c spacing of multi-ways and vice versa for further away.

How 'further' depends a lot on [acoustic] XO point/slope Vs distance to the 'sweet spot' Vs how well time/phase aligned they are.

GM

in lieu of TS specs and going by my instincts, i think the 9844 cab needs to be about 10% larger and the port

smaller

.
for what it's worth XO wise i just planed to run the 412s full range and bring the horns in somewhat attenuated and somewhere around 4-6000hz