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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 b.l.zeebub on January 12, 2017 at 08:55:11
thanks for the links - if i can get a little tweeter to go down low enough without strain - I'm broke so have to go real cheap - got some Audax bullets and Selenium ST324 somewhere in my mess.
I was thinking of using Peavey RX14 on a little rectangular horn
eventually I'll have another midbass but don't expect it to be quite as good as the one above
my builder doesn't have much spare time for speakers so this baby University Classic for a 10" may take a number of months to finish
6 cubic foot folded midbass - got wasted space in its back chamber and around the throat section - might make it to 100 - more worried about
it reaching a midhorn
my real fun is with Karlson - I'll take a K12 over my Klipschorn
Karlson Evangelist
Follow Ups:
I assumed you were doing a 3way with that bass bin and that mid horn looking for a tweeter above.Now it seems I may have got that wrong and you're looking for a compression driver to go with the bass. I'm slightly confused... ;-)
If the latter is the case the only smallªish) compression driver suitable I can think of is the
BMS 4550. A 1" cd with a lowest rec. crossover of 800Hz that goes all the way up to 20k.
Costs about £90 incl VAT, £75 ($92) without.Possibly suitable horn flares:
P-Audio PH 220,
Fane FH.450,
Fane FH 242,
Fane FH 386
RCF H100.Quite hard to find 1" flares that keep pattern down to 800Hz and an adapter might be in order.
That said the FH.450 only costs £12 and looks like an old school flat-fronted expo horn which would go well with your bass bin IMO. It is advertised by Fane as an constant-directivity radial horn whatever that means.(I have no clue about the availability of any of those in North America. If you have to run flares to that close to their cut off I'd use something steeper than a 12dB xover.)
Edits: 01/15/17
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)
_
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: 01/12/17
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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