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In Reply to: RE: what's a good little rectangular horn to use with 1" driver for a tweeter ? posted by freddyi on January 12, 2017 at 09:18:41
Fredyi -If you haven't already got a few, go to the Parts Express website and search under "PRV Audio WG35-25-B". It might be the best $10 you'll spend this year.
(It's not an exponential horn, BTW, the copyrwriter at PE evidently doesn't know a lot about horns)
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Make easy high performance diffusors:-->http://www.libinst.com/diffusers/Depot_Diffuser.html
Horn Design Spreadsheet:--> http://libinst.com/SynergyCalc/
SmallSyns:-->http://www.diyaudio.com/forums/multi-way/292379-s
Edits: 01/12/17Follow Ups:
cool - will that waveguide work in the 3K and up area without EQ? - I've got an unused QSC version of the Econowave favorite.For screw on 1" drivers, I have a little Gollehon horn - about 10" deep IIRC - I'm sure it has some beaming on top and will "self-eq"
don't know how to stack these effectively - maybe just a small base with a vertical piece with cutouts at the midhorn and tweeter horns' throats as "yokes" ??? - I'm horrible at woodwork.
I think the midhorn's sidewalls are 90 degrees and the smaller horn's sidewalls 120 degrees - don't know what effects that may have
Karlson Evangelist
Edits: 01/13/17
Give BEYMA CP25 a try. They will work wonders with the dispersion of your mid horns as they share the same geometry. They are great tweeters for the price.
That horn is basically a (actually better made) copy of the QSC. It's constant directivity, though, so needs CD compensation starting at around 3kHz. A series resistor of about 10 ohms with about 1uF shunted across it (R and C in parallel, then that in series with the tweeter) should get close. That horn works pretty well as low as 900Hz, maybe bigger than what you want though. Very smooth sounding, though.
_
Make easy high performance diffusors:-->http://www.libinst.com/diffusers/Depot_Diffuser.html
Horn Design Spreadsheet:--> http://libinst.com/SynergyCalc/
SmallSyns:-->http://www.diyaudio.com/forums/multi-way/292379-s
thanks for the CD compensation values - I think my midhorn will make it to 3KHz - maybe 4 (?) so the tweeter waveguide/horn doesn't need to be very large - its nice to know that PRV is such a well made WG at a near give-away price.
Karlson Evangelist
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