BillFitzmaurice.info

Hi All

I am finishing my OmniTop 12 Build with compression horn loaded with the ASD-1001 Eminence compression.
I'll be using a DSP to filter frequencies for mid and hi
I'll be wiring a highpass protection capacitor for the compression.
The plans says to set the crossover to 2Khz but the compression specs says its usable range is 2500Hz-20kHz...
https://www.parts-express.com/Eminence- ... PI-290-525



I am using the eminence beta 12 for the Mid, and its frequency response says it can go up to 2500Hz "flat"
https://images.static-thomann.de/pics/a ... 140195.pdf

Why arent we setting the crossover to 2500Hz instead of 2000Hz ?

Thanks

We can go to 2kHz because we use a 4th order high pass filter. The Beta 12 can go to 2.5kHz reasonably flat on-axis, but not off-axis. Also, the Eminence SPL chart wasn't measured in a horn.

Bill Fitzmaurice wrote: ↑Thu Jun 30, 2022 8:32 am We can go to 2kHz because we use a 4th order high pass filter.

So make sure you use a steep drop off when you chose your crossover type.