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Old 30th May 2014, 12:49 AM   #1
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Default AutoTech Horns

Hello,

I wanted to make a pair of horns using something form DIY Sound group. Does anyone have any ideas on a design? I personally have no experience in designing speakers but have built a couple before. My room isn't too big so I can't use some of the larger horns, but if anyone has any ideas on what to build, your support will be much appreciated.

Link: http://www.diysoundgroup.com/horns/autotech-horns.html

Thanks in advance

Last edited by Zashoomin; 30th May 2014 at 02:18 AM.
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Old 9th June 2014, 12:59 AM   #2
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Better going to Multi-Way. There's a lot of help there.
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Old 9th June 2014, 01:08 AM   #3
kevinkr is offline kevinkr  United States
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Old 9th June 2014, 10:38 AM   #4
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They have some nice kits with front baffle. seos 12 with a 12" i think.
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Old 9th June 2014, 06:50 PM   #5
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Originally Posted by norman bates View Post
They have some nice kits with front baffle. seos 12 with a 12" i think.
They do have some nice kits for the waveguides but I am looking more for the JMLC horns or the Tractrix.
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Old 9th June 2014, 10:33 PM   #6
Flaesh is offline Flaesh  Russian Federation
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choose horn you like
buy proper comp. drivers, suitable LF speakers and minidsp with mic (or other)
make boxes if it is necessary
cross\equlise
listen\enjoy
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Old 9th June 2014, 10:48 PM   #7
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Originally Posted by Flaesh View Post
choose horn you like
buy proper comp. drivers, suitable LF speakers and minidsp with mic (or other)
make boxes if it is necessary
cross\equlise
listen\enjoy
I have no idea what that means sorry. A little less jargon please or abbreviations.
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Old 9th June 2014, 11:08 PM   #8
Flaesh is offline Flaesh  Russian Federation
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sorry.
choose horn you like
buy proper compression drivers, suitable low frequency speakers and digital crossover (minidsp for examle) with measurement microphone
make boxes if it is necessary
make crossover with using digital crossover and microphone measurements, equalise speaker responce if it is necessary
listen\enjoy
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Old 10th June 2014, 04:44 AM   #9
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Originally Posted by Zashoomin View Post
They do have some nice kits for the waveguides but I am looking more for the JMLC horns or the Tractrix.
I've not found any 'cookbook' designs for the Autotech horns, so to repeat what Flaesch said you are left making your choices and designing your own. You'll need basic measurement tools, and things can be easier if you can use a DSP based active crossover. At least that way once you have the hardware crossover changes are quick and free (compared to buying passive xover parts).

I'm pretty much a noob, too, at least when it comes to designing my own instead of following a recipe. I'm attracted to the Iwata 600's, probably based more on emotion and visual appeal than any objective facts, but I'm starting smaller and cheaper with a Faital Pro tractrix horn and CD (STH100/HF100), an 8" Eminence Beta 8a, MiniDSP 2x4 and two Chinese class D amp boards. The total cost (with a sheet of lumber) is a little more than the cost of the Iwatas alone, forget drivers. If I can make that work reasonably well (and I think I'm getting close), I'll feel more justified in spending hundreds more chasing fancier horns & drivers.

BTW, it would help if you specified how big your room is, your targets for bass extension and SPL, your tolerance for a big enclosure or a narrow sweet spot and a rough budget for your project. There are lots of bright and helpful people here but they don't generally read minds too well.

Bill
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Old 10th June 2014, 05:51 AM   #10
Flaesh is offline Flaesh  Russian Federation
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good point, lousymusician!
http://1.bp.blogspot.com/-CeMVNykHMZ...DSC_8484_1.jpg - autotech horns system made by diyAudio - View Profile: cka3o4nuk using above (#6,#8) mentioned algorithm
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