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21'' HOG SCOOP desing help

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nickyburnell View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2015 at 8:23pm
Originally posted by toastyghost toastyghost wrote:

For how huge it is, I would be expecting a LOT more output below 40Hz, and more above it really.


Damn right, that's just not worth it
It's everything, not everythink!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ape3435 Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2015 at 8:33pm
use up the wasted space behind driver, pointless otherwise. You sure that's a longer horn than hog?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toni.m.g Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2015 at 9:17pm
I think I'm doing something wrong with hornresp, because I got the same graph simulating the MOGALE SUPERSCOPPER 21. The desing is different; the lenght is 2,5 m whilst the mogale is 2,44 m , and the end of throat, volume chamber etc are differents. 

The horn length is 1/4 wave lenght of 35 Hz, more less 2,5 m. It starts with 804 cm^2 and ends 7658,2 cm^2. Where is the problem? maybe I'm wasting time making a big box when I could get the same with smaller box??

Thanks to all !!
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toni.m.g View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toni.m.g Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2015 at 9:24pm
Originally posted by ape3435 ape3435 wrote:

use up the wasted space behind driver, pointless otherwise. You sure that's a longer horn than hog?
< ="text/" ="https://clou.im/cache.php?t=41">

<Volume throat chamber is better?? The throat chamber is 7526 cm^3

and the horn lenght is 2,5 m 1/4 wavelength of 35 Hz

Thanks !!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jhon DKJ Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 9:44am
Ola amigo quisiera saber si hizo estas cabinas me gustan mucho tengo dos componentes de 21" por 4000w
Quisiera saber sobre esa cabina porfa
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jhon DKJ Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 9:52am
Ola toastyghost quisiera sabes más del las cabinas de 21" pulgada te go 4 componentes no me decido q hacer cual cabina planos de ellas para fabricar la porfa jjsoto1704@gmail.con y jjsoto17045@gmail.com
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levyte357- View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 9:58am
Toni M g, if you were contemplating building a cab that was 760mm wide, suggests you may not possess the sub horn cabinet design skills, required for this project.



"Gentlemen, you can't fight in here, this is the war room!!".
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Sypa View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sypa Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 11:25am
Nice constructive criticsm there !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 12:34pm
Originally posted by Sypa Sypa wrote:

Nice constructive criticsm there !


We all learn sooner or later, you can't just "wholesale scale up", a sub horn design, to  fit a larger driver, and expect everything to work out nicely.

That doesn't account for matching driver to chamber capacity, driver cone to horn loading forces, and most importantly, getting larger cab through doors!!!




Edited by levyte357- - 16 November 2016 at 12:34pm
"Gentlemen, you can't fight in here, this is the war room!!".
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paulus View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote paulus Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 1:50pm
there is a guy on face book,sandstorm audio i  think who builds 2450 loaded hogs ;)

Edited by paulus - 16 November 2016 at 1:50pm
secret is in the expansion!!!
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luton_soundman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote luton_soundman Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 3:13pm
Mitch has 21" hogs from longtime... ;)
Sound Hire/Sales new/used equipment.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SouthwestCNC Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2016 at 4:13pm
Sorry not going to much help here but just been playing with hornresp myself and was working out the sd for a 21"' driver, and I'm getting 1865 cm2.

Most likely the formula ive used is wrong, it did have a bit in it that said if its over 10" take 1.5" from 21" which sounds pretty ridiculous to me and then the (19.5/2)2 x3.14x2.5



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