How close can you crossover a horn relative to the acoustical cut-off of the horn. I have read you are supposed to cross a half octave above the cutoff, is that correct?
if I have a 120 Hz upper bass horn with an 8” driver, how close or beyond 120Hz can a crossover without running into distortions or other issues?
if I have a 120 Hz upper bass horn with an 8” driver, how close or beyond 120Hz can a crossover without running into distortions or other issues?
It depends on the severity of the cutoff and also to some degree on the frequency. Some horns (eg waveguides) don't really have a cutoff.
You didn't say what kind of horn it is.
What will the horn be doing for you at 120Hz? Do you need loading? does it offer any directivity?
What will the horn be doing for you at 120Hz? Do you need loading? does it offer any directivity?
The horn is going to cross to either a midwoofer or a sub at 120hz. So I would like it to be loaded as close as possible to 120hz. Driver B&c 8pe21 fs 87. horn is straight conical. I am guessing past 120hz it will just act as a direct radiator?
The tool you want is hornresp
It can be found here - https://www.diyaudio.com/community/threads/hornresp.119854/unread
It will show you a plot of loading, all sound at varying angles, resonances and many other aspects of the horn.
It can be found here - https://www.diyaudio.com/community/threads/hornresp.119854/unread
It will show you a plot of loading, all sound at varying angles, resonances and many other aspects of the horn.
