I'm starting to consider my next speaker build as I get close to wrapping up my Super Heresy project. My desire is to do a horn-loaded cabinet with a front-radiating woofer based on the Crites Cornscala, with similar, if not identical parts specifications. The only problem I see is that classic speaker shape doesn't work in my listening space, at 25W x 15D x 35H it takes up a lot of space laterally. Would it work to condense the footprint of the cabinet so that it's closer to a square than a rectangle, say, 20" x 20" x 35", making it deeper to maintain the volume of the original? or is the shape of that particular enclosure significant with regards to the sound?
It’s always nice to have cabinet width as it means less lower midrange on the wall behind the speaker. Still, 20% isn’t going to do too much to the baffle step.
What do you know about the horn, does it reach wide at lower frequencies within the passband or does this design cross at less than the 180 degrees of the baffle? Maybe someone has done some measurements that will shed some light on it.
Another option may be to add roundovers which look less imposing but can be useful.
What do you know about the horn, does it reach wide at lower frequencies within the passband or does this design cross at less than the 180 degrees of the baffle? Maybe someone has done some measurements that will shed some light on it.
Another option may be to add roundovers which look less imposing but can be useful.
my plan is to use an M2380 horn and a Selenium D405r, with a crossover set around 500Hz for the squawkers, unless I can find another horn that would allow the use of an A-55-G compression driver.
Your choice of compression driver isn’t really going to have an effect connected with baffle size, but the nature of the horn is. Looking at the M2380 it looks kind of constant directivity asymmetrical with radiused terminations.
What are the approximate dimensions?
What are the approximate dimensions?
11" h x 17" wide. I have seen others do separate boxes for the squawker and tweeters and even baffle-less upper designs. Presumably, they would require an increased cabinet for the woofer, correct?
A wavelength at 500Hz is 27”
The horn may support a fair amount of the wavefront but I’d be counting on at least some baffle support beyond it.
That doesn’t mean you need that much baffle. My concern was to your original question whether there may be a difference if you change your baffle width.
Again, that doesn’t mean it won’t work.. but you may for example want to check whether to tune up the crossover.
The horn may support a fair amount of the wavefront but I’d be counting on at least some baffle support beyond it.
That doesn’t mean you need that much baffle. My concern was to your original question whether there may be a difference if you change your baffle width.
Again, that doesn’t mean it won’t work.. but you may for example want to check whether to tune up the crossover.
One thing I'd watch out for is enclosure standing wave resonances.
https://vikash.info/audio/standing_...t=819.15&width=314.325&depth=508&threshold=80
You can use a tool like this to help work around some of them.
https://vikash.info/audio/standing_...t=819.15&width=314.325&depth=508&threshold=80
You can use a tool like this to help work around some of them.
IME till it's in-wall it can't be too wide with ~36" the point of diminishing returns, but even at ~13543/pi/20 = ~215 Hz it's below the mid-range. 😉