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Hi! thanks for advices!
The units in 5th picture are tractrix profile horn on an ex apt150 eminence driver. I didn't like the sound of the original constant directivity horn in my small room (5 x 5m) i tried different kind of profiles and wave guides on drivers 1" and 2", after my tests i found the tractrix profile maybe the best sounding at all for focus and detail (and for my taste).
I tried exponential, conical, multicell, iwata profile and some Others, i still prefer tractrixconical and iwata not bad! In my opinion the best things to do is choose the right frequency range in which the driver gives the best, than project the horn smaller possible.
I posted a couple of fresh photos of drivers, they have plane surface with 4 m6, i want to make a flange threaded and a bigger version of the 5th pic tractrix threaded too. I used this driver with different attachments for many years, although Rcf rate this drivers from 1K to 20khz i'm sure that using them in this range is a suicide
I don't know your ideas about spaker with fullrange or multiway system, i can summarize my experience and my taste in few points:
- high sensivity full range (single cone or whizzer, i want to try lowther alnico on my system) for voices and range from 100 up to 10k
- great improvement using subwoofers down to 250hz
- good setup with tweeter just for some more air
In my system maybe i don't need the 4th way, i got the range from 150hz to 15khz covered with the big horns up to 110db/w/m, but i love to see this massive aluminum horns
Your right, I think i have to setup a good steps program, the project is a bit complicated and i have no possibility to fail
Are you enthusiast of hi end audio?
ps: sorry, my english is bad as hell
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