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Multi-Way Conventional loudspeakers with crossovers

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Old 9th May 2018, 03:38 AM   #11
hollowboy is offline hollowboy  Australia
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Originally Posted by Patrick Bateman View Post
If you ignore the flange, this horn measures 16" x 9.5. That means that it will start to go omni around 1080Hz.
I've housed mine in a butchered JBL 4691B cab, so the face is 70x50cm (if you ignore the roundover, about 24"x16") ...still not big enough to be 'perfect'.

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For this project, I'm definitely considering the addition of a secondary flare, similar to what Danley / Waslo / Keele do.
Mine was very arbitrary

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You can play around with this in Hornresp; you'll see that narrowing the beamwidth raises the output of the tweeter and the midrange.
It took a long time for this to 'click' for me. I initially thought horn gains were all in the low end.

My 2" driver spec sheet says Half Space Sensitivity db@2.83V/1M 85.67

...but because it is radiating into (roughly) 1/8th space, the effective sensitivity is >90dB, even after I've used subtractive eq to reign in the low frequency boost.
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Old 16th May 2018, 08:38 PM   #12
HIPCHECK is offline HIPCHECK  United States
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Just noticed this over at Partsexpress: TE-8180 1" Horn 22.5" x 10" 1-3/8"-18 TPI

22.5" x 11" 90x40 horn. IIRC the Small Syns is based on the Seos15 which is also 90x40 pattern.

There is this one to. It is 20cm deep and 40x60. If we are building a single unity mid design like SmallSyns this might work to. The price is right on this one at $12 too! BL-409 Plastic Horn Waveguide

Figured I would post it here if anybody is interested. They also have a copy of the NLA QSC horn for $12 if someone was looking.
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Last edited by HIPCHECK; 16th May 2018 at 08:49 PM.
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Old 16th May 2018, 09:00 PM   #13
bwaslo is offline bwaslo  United States
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Originally Posted by HIPCHECK View Post
Just noticed this over at Partsexpress:
TE-8180 1" Horn 22.5" x 10" 1-3/8"-18 TPI
Looks like a nice flat surface for smashing a midrange onto it, though. But the screw-on mount would have to go, don't want a straight pipe between the HF driver and the waveguide on a Unity - would want to saw off the throat at the point it starts to expand and glue on a CD mounting plate (which might not be too easy to do)
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Old 16th May 2018, 09:09 PM   #14
HIPCHECK is offline HIPCHECK  United States
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Yes it falls into the "some hacking needed" But that is a really decent sized horn for cheap.
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Old 17th May 2018, 07:10 PM   #15
bwaslo is offline bwaslo  United States
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I'd be tempted to try a design with it, if it weren't for the fact the horn is a limited quantity buyout. I already have horns I like so no sense in designing an orphan.
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Old 7th June 2018, 08:24 AM   #16
hollowboy is offline hollowboy  Australia
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Originally Posted by bwaslo View Post
Looks like a nice flat surface for smashing a midrange onto it
Some 1.4" and 2" options with flat wall sections (and no obvious throat problems) are on the clearance page here:

http://www.loudspeakersplus.com/Spea...show=30&page=1

If I was in the USA, I'd be tempted by a few things on that page.

EDIT: The PH-220 looks like a decent 1" option, but I don't see it at a similarly crazy sale price anywhere. Locally, they are $AUD 79, which a normal, non-crazy price
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File Type: jpg PAudio PH-85.JPG (112.4 KB, 91 views)
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Last edited by hollowboy; 7th June 2018 at 08:32 AM. Reason: Added 1" info
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