Constant directivity horn to 800Hz for a 2" compression driver.

For a personal project i want to use that exellent Faital HF201 mated initially with a 10" woofer i already have in a cabinet that is good to 800Hz (altough i may to to a 12" later) in a constant directivy horn. But it seems that those are not that common. I used that driver a few times for others already with the P Audio 2380 clone of the JBL horn and in that horn it works well, but it's not constant directivity and it's dispertion is to wide for my home use. Off course i could contact people who make custom horns for this, but that is way out of my budget. Are there ready made horns like that with a 70 to 60" horizontal dispertion that does not cost too much (under 200€ for a horn)? Crossover will be dsp anyway as the sensivity difference will be to big to do it passive.

The 18sound XR2046 is the style of horn i would like to have, but it does not load low enough for my use. Other drivers are not really the goal, i really want an own home setup with that HF201, as it's sound, even unequialised is the kind of sound i like a lot. Other Faital drivers are close and sound very good, but not close enough.
 
i have various horns.2 pieces b&c de750 on ME-75 horn. 6 pieces b&c ME 60 horn 4 loaded with p audio SD 750-N and 2 with b&c DE-75. 2 pieces p audio PH-3223 loaded with b&c DE-75.all configurations sound exelent.i use only high shelving on DSPs setup and no other eq.all of the above reguired slight differend setings for high pass and high shelving to get them right detailed smooth and no harsh sound.the p audio ph-3223 and b&c me-60 horns can turn when mounted on the box 90 degrees to change nominal coverage with noticeable change in sound definition in a big room.i hope this helps
 
Regarding the crossover, even if you are using DSP I would recommend using a resistor divider to reduce the compression driver sensitivity to that of the woofer to improve the SNR of the system.

These guys do big horns: http://horns-diy.pl/ however they are fiberglass and not going to be cheap compared to a plastic horn, so out of budget.

EV did some large constant directivity horns might be available second hand.

If you have access to a table saw you can make a dual slope conical horn
 
i have various horns.2 pieces b&c de750 on ME-75 horn. 6 pieces b&c ME 60 horn 4 loaded with p audio SD 750-N and 2 with b&c DE-75. 2 pieces p audio PH-3223 loaded with b&c DE-75.all configurations sound exelent.i use only high shelving on DSPs setup and no other eq.all of the above reguired slight differend setings for high pass and high shelving to get them right detailed smooth and no harsh sound.the p audio ph-3223 and b&c me-60 horns can turn when mounted on the box 90 degrees to change nominal coverage with noticeable change in sound definition in a big room.i hope this helps
The B&C ME60 could be something usefull, altough it's not totally what i search for. Thanks
 
Cheap?
We use to find used Peavey CH-4C
all the time.
You can get all the way down to the sub
with a MB-1
good luck finding one.
But realistically CH-4C and MF1-X
easy to find

1682683235773.png1682683257568.png
1682683314656.png
 
  • Like
Reactions: EarlK
For limiting directivity and generally operating at lower frequencies, it is difficult to find good commercial offerings so knowing these things helps you make the best of your choices. Also when DIYing, good control at these lower frequencies is what I find important, and loading will find more use outside of a domestic environment.
 
It's vertical is even smaller. The datasheet doesn't have polar measurements so it won't be easy to guess. The thing with pro waveguides is they are crossed higher for power handling and low frequency directivity is not a priority.
 
There was one time where I used a Dayton round waveguide and extended it so I could cross near 800Hz.

wg1.jpg

You can see the extension (green paint) here later when I swapped in my own throat section. It is a steel lampshade.

2a.png

The front was upgraded by enlarging the roundover using foam (compared to the 15" woofer).

r.jpg

Later I fibreglassed a new extension and roundover.

Image1.jpg
 
Last edited: