>05-11-12: Mapman
>"As a devotee for years of First Order Crossovers because of the phase correct delivery, I overlooked the directionality that they impart."
>
>Lrsky, why is a first order crossover more directional?
Excursion to produce a given SPL quadruples with each octave lower you play while a first order cross-over only halves output with each octave out of the pass band so excursion is still doubling in the higher frequency driver with each octave lower for a given program SPL level until the high-pass ceases to have a first order slope.
This forces a higher cross-over point where the lower frequency driver is more directional.
The larger frequency range of overlap between drivers covering adjacent parts of the frequency spectrum with appreciable output also causes more lobing in the vertical polar response.
>"As a devotee for years of First Order Crossovers because of the phase correct delivery, I overlooked the directionality that they impart."
>
>Lrsky, why is a first order crossover more directional?
Excursion to produce a given SPL quadruples with each octave lower you play while a first order cross-over only halves output with each octave out of the pass band so excursion is still doubling in the higher frequency driver with each octave lower for a given program SPL level until the high-pass ceases to have a first order slope.
This forces a higher cross-over point where the lower frequency driver is more directional.
The larger frequency range of overlap between drivers covering adjacent parts of the frequency spectrum with appreciable output also causes more lobing in the vertical polar response.

