I've been experimenting with using a small full range driver in a 2" throat horn, with satisfying results. I just got some Faital 2FE22 and I'm wondering what the optimal horn throat for this driver would be. It has a deep cone with a 1" spherical dust cap and you can see the diffraction artifacts clearly at 13.5kHz. Other than that, the FR looks nearly perfect.
Smoothed OS-like profile at the throat starting at a 0 deg entry? Or just straight into a conical expansion?
Is there any potential for a diffraction mump on the sides to improve horizontal dispersion?
https://faitalpro.com/en/products/LF_Loudspeakers/product_details/index.php?id=40900015
Smoothed OS-like profile at the throat starting at a 0 deg entry? Or just straight into a conical expansion?
Is there any potential for a diffraction mump on the sides to improve horizontal dispersion?
https://faitalpro.com/en/products/LF_Loudspeakers/product_details/index.php?id=40900015
I’ll be interested to see where you go with this.
I got my hands on some conical petal horns with 3” throats a couple years ago.
I still haven’t had a chance to make any kind of throat adapter for any kind of compression driver.
In the mean time, I decided to try throwing a pair of Fostex 108ez I had on them as a sort of “what if?” exercise.
I was very pleasantly surprised by the results.
I thought they needed some help with the top end to bring out more detail, so I hooked up a pair of T90a with a 1uF cap and L-pad. It was better, I’m just not sure that is the best solution.
I’d rather have a driver in the horn that will reach up higher on its own to maintain as much of a point source as possible from about 300Hz.
I’ve been looking at some of the other Fostex offerings like the newer 108ns with whizzer and the 108sol.
I’m not sure they would be better and haven’t come across a lot more to consider.
I got my hands on some conical petal horns with 3” throats a couple years ago.
I still haven’t had a chance to make any kind of throat adapter for any kind of compression driver.
In the mean time, I decided to try throwing a pair of Fostex 108ez I had on them as a sort of “what if?” exercise.
I was very pleasantly surprised by the results.
I thought they needed some help with the top end to bring out more detail, so I hooked up a pair of T90a with a 1uF cap and L-pad. It was better, I’m just not sure that is the best solution.
I’d rather have a driver in the horn that will reach up higher on its own to maintain as much of a point source as possible from about 300Hz.
I’ve been looking at some of the other Fostex offerings like the newer 108ns with whizzer and the 108sol.
I’m not sure they would be better and haven’t come across a lot more to consider.
chromenuts - I'm used to 1" compression drivers on constant directivity horns and a 2" is the limit of HF beaming I can handle. I used an Eminence Alpha 2 in an 11"x17" 90x40 constant horn and mounted them directly in the room corners for full-range reflection control. It worked very well down to a 500hz 4th order XO. I did use EQ. The imaging was unbelievable... It's amazing what you can get from a $10 driver + $20 horn. But the corner loading definitely helped a lot, that was the concept for the whole project.The Faital 2FE22 is 90db from 3khz and up, has almost 3mm Xmax and 25W AES power handling. On paper at least there isn't a better 2" unit AFAIK. So I'm going to make a custom horn that can fit the corner and I have pretty high expectations.