Hi Dallaire,
---benefit to allign driver voice coils vertically on the baffle if one is using a 24db per octave electronic constant voltage crossover?---
The theory behind crossovers supposes all drivers to be verticaly aligned. Your question should be : "What do I lose in my drivers are not strictly aligned ?"
In his book, Dickason shows response variations for offsets of 1" and 2" at 1000 Hz for an LR 24 : about 0.25 dB and 1.25 dB.
With digital crossover, it is easy to nullify the offset.
About the resonance of the high-passed driver, a long time ago, Marshall Leach wrote an AES article about its influence on the overall response. I have been intrigued that nobody seems to have done further work on the subject so I decided to do simulations myself. I found it was quite easy. I published some results in other threads but they did not retain much attention.
If you provide
- the frequency, kind and order of crossover (here LR24),
- the current vertical offset and the resonance frequency and Q of the high-passed driver,
I can do a simulation to determine what response variations can be expected.