Tymphany DFM-2535-R00-08 in SB Audience H225 90x60 degree constant directivity horn

I'm sorry, I've only made a DSP setup for a friend, not a passive xo. He usedd 2 cheap 10" drivers with a 2.5 way setup without a sub and a 2-way with subwoofers. At 2,2k the CD could surprisingly keep up but the headroom for live (feedback!) should have been a bit higher.
 
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Thanks. And can I ask again what may a passive XO look like.? As regards flattening the response.
The polars as shown by miero above have a nice natural fall with frequency along with increasing DI. Sometimes that sounds OK as is. On the other hand the direct answer to your question probably involves a series resistor with a capacitor across it.
 
But that has not yet been measured with the DFM 2335.
I got confused by incorrect model number in the thread subject. There are measurements of A460D with DFM 2353.
- https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7826267
1729868168631-png.1372347
 
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Very much home/hifi and not PA. Modest size UK room. 3m listening distance or so

If you are referring to SPL, I agree that 111dB/1m is a bit limited for PA. For a small solo singer/guitarist in a cafe it’s perhaps ok.

For home hifi, single unit just meets THX/Atmos spec for 85dB at -20dBFS @2m

For larger spaces and listening at 8+ metres, an extra 10dB would be welcome.

I can start to see why PA line arrays have supplanted point sources for large venues Eg. Stadiums
 
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I opened up the holes in the H225 a little to ease fitment. The PCD is 0.5mm different between horn and DFM and there isn't much clearance in the holes.

Can I ask what is the orientation of the horn assuming we want more horizontal than vertical dispersion.IMG20250306091237.jpg
IMG20250306091233.jpg

Hope it's easy to see from the images.
 

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F6- terminus/mouth/baffle size:

F6- = 10^6/(baffle*wall angle) inches

F6- = (2.54*10^6)/(baffle*wall angle) cm

The higher the aspect ratio (taller) the wider its horizontal polar response and vice versa.