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Old 23rd August 2005, 07:36 AM   #1
nniwelt is offline nniwelt  United States
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Default Looking For Folded Horn Sub Plans

I want to make my own folded horn subs to be used in outdoor party's.
I was thinking of copying EAW kF-940, EAW LA-400 or EAW DCS2 but if there's anything else that will fit to my application it'll be OK.

Like I've said this is outdoor party's dance floor 45ftx45ft under tent.


Thanks
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Old 23rd August 2005, 07:02 PM   #2
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Default tuba?

i assume you've seen this? http://www.billfitzmaurice.com/plans...products_id/14

Click the image to open in full size.
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Old 24th August 2005, 04:39 PM   #3
synergy is offline synergy  United Kingdom
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meant to post a reply to this yesterday but never got the chance

if you're wanting to go down the 12" route (and many say this is the key to good bass - small easily movable cone with high excursion creating a piston effect) then you can't go far wrong with the LAB Sub

full details can be found on the prosound forum where it was born -

http://srforums.prosoundweb.com/index.php/f/3/0

however i will warn you the woodworking is a b*tch, and they are best run upto 80Hz max with something like an HD15 above

which brings me to the next site to look at www.speakerplans.com

this site contains plans by Rog Mogale

18" & 15" horns plus bandpass boxes and mid tops there's also a forum there
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Old 25th August 2005, 11:58 AM   #4
qi is offline qi
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Norbert

Quote:
I was thinking of copying EAW kF-940
How would you go about doing that? It is proprietary and uses CNC routing to make a 13ft folded horn template.

They then use a thin veneer and fit it into the CNC groove, and damp it with a plastic foam.

If you are you privy to details we are all ears
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Old 25th August 2005, 05:43 PM   #5
nniwelt is offline nniwelt  United States
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qi

Regarding KF-940 it sounds really complicated, however I'm a carpenter and I've done CNC routing before. But still it's a lot of work doing that box.
I do have picture of 940 exposed and I was thinking of doing that ]cenventional way without CNC just using regular material and methods.
It sounds like you know this box well, do you know where I can get more info, like detailed pictures and measurements?
What about DCS2 sub? Can you compare it to KF-940?
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Old 25th August 2005, 05:43 PM   #6
nniwelt is offline nniwelt  United States
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What about horn subwoofer plans? I only saw one site www.spekerplans.com There's www.loudspeakerbuilder.com but they only make boxes not sell plans.
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Old 25th August 2005, 07:58 PM   #7
qi is offline qi
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Quote:
Originally posted by nniwelt
qi

Regarding KF-940 it sounds really complicated, however I'm a carpenter and I've done CNC routing before. But still it's a lot of work doing that box.
I do have picture of 940 exposed and I was thinking of doing that ]cenventional way without CNC just using regular material and methods.
It sounds like you know this box well, do you know where I can get more info, like detailed pictures and measurements?
What about DCS2 sub? Can you compare it to KF-940?
Actually, I gleaned that info from their website. That is the extent of my knowledge.

I am sincere in my request to know more about the insides of the KF-940.

Whatever pictures / details you have would be appreciated.

Have you seen the plans for the Jensen Imperial?

While these plans have been "super-sized" for a 24" driver, you could scale them for a 12" by dividing everything by 2...
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File Type: jpg jensen.jpg (66.7 KB, 882 views)
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Old 25th August 2005, 08:30 PM   #8
qi is offline qi
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Here is the actual link to the super-sized plans...

http://www.steevee.com/jensen/jensen.htm

Half-sized, they are about 4' x 3' x 2'.
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Old 26th August 2005, 01:25 AM   #9
GM is offline GM  United States
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Quote:
Originally posted by qi
While these plans have been "super-sized" for a 24" driver, you could scale them for a 12" by dividing everything by 2...
Greets!

You can't scale horns this way, any more than you can a sealed or vented cab, unless of course you want Fl, Fh to be much higher.

GM
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Old 26th August 2005, 01:45 AM   #10
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Default jensen info and more plans...

http://decware.com/newsite/speakers.htm
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