Hi,
I´d like to build some wooden midrange horns for my 2445 2"-drivers.
I love the look of the Bruce Edgar horns, but I can`t find exact plans to rebuild some of them. Can anyone help me out ?
Besides that, I have a generell question on horns:
If the physical cutoff-frequency of a horn is 500hz, I would have to cross it over at 1000hz, right!?
For example this horn;
http://www.soniphase.com/speakersc.html
It has a 400hz cutoff, so crossover should be around 800hz.....!?
Another example, the JBL 2380;
http://www.jblpro.com/pages/pub/components/2380a.pdf
It claims to be useable from 500hz.... But the frequency-drawing shows, its very weak between 600-1000hz and actually starts rising efficiency sufficient at about 1100hz and up.
So without eq-compensation, even this horn shouldn`t be used below 1000hz!?
Thanks a lot and have a great week,
Olaf