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i would like to construct horns...
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sKs01 View Drop Down
Old Croc
Old Croc


Joined: 11 April 2008
Location: sheffield
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Points: 1744 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sKs01 Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 2:32pm
a 30mm xmax will not necisarily make up for 85db efficiency im assuming your talking about car audio drivers or similar which is the only place i have seen such large xmaxes cited for a 12".

take into account the sd of the driver and more than likley the drivers your looking at wont be as desirable as an 18" on a horn in a logistical sense as many many more cabinets will be required for the same spl, add to that the low bl and qts of such drivers and you might even wind up with less controlled sound.

the punisher and lab horn are examples of well executed uses of 12" sub drivers however both have their foibles, the lab is inordinatley temprimental as in you need to be carefull with the drivers but they have low power compression and is highly efficient and has verry low fc

the punisher has a much hogher fc is portable and practical however agian needs quite a few cabinets to counteract the high fc which brings cost up as the caire driver is on a par in price to that of a respectable 18" and has similar levels of power compression as its just caires 18" magnet structure strapped to a 12" cone.
You're a big man, but you're in bad shape. With me it's a full time job. Now behave yourself.
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tomschute View Drop Down
Old Croc
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Joined: 15 May 2006
Location: Mid Wales
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Points: 1817 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tomschute Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 4:44pm
Originally posted by space-face space-face wrote:

the standard horn modeling program that people seem to use here is hornresp, it's free but takes a little getting used to. For other cabinet types such as reflex or band pass you can use winisd which is very easy to use. it may be possible to use something like comsol multiphysics to model horns accurately.... might be worth a go. 

can you post up some sims of a wall of 10 or 12 inch short horns that beats a small stack of 18 or 21 inch folded horns? I can't imagine that working terribly well. Also while there are a few 12" drivers with high power handeling and xmax 18" drivers in general move more air and can handle more power.

you might want to condense your post into something a bit more readable it's kinda hard to work out what you're asking!

 


spaceface re read the tread, and yours you have offered nothing of use, lol! There's plent of 12" drivers around with good xmax and power raeting - sorry not being picky just mis information or irrelevant threads don't help anyone. Although maybe not MASSIVE xmax. It isn't about 'moving air' with horns, whatever that's sposed to mean...

I assume using a really short horn with something like the ciare sw12 might be interesting... be interesting to see how small you could make it and how many you'd need to hit 45hz

Big walls of HD15s sound nice so taking it further would be interesting!


Edited by tomschute - 02 July 2009 at 4:47pm
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ಠ_ಠ View Drop Down
Registered User
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Joined: 30 June 2009
Location: Richmond, Va
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ಠ_ಠ Quote  Post ReplyReply Direct Link To This Post Posted: 03 July 2009 at 12:02am
i think beat is a REALLY narrow minded concept.  I just think a wall of 12s fits my needs.  If perfection existed we would know about.  Yea tho i think the micro size 12s would be COOL.  I'm talking plastic forming and stuff not just wood (which i suspect might influence other folks choice for 18s having sore attitudes about saw dust and banged knuckles hearing 3 times as many speakers and instantly having PTSD flash backs about building wood speakers... >_>)
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ಠ_ಠ View Drop Down
Registered User
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Joined: 30 June 2009
Location: Richmond, Va
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ಠ_ಠ Quote  Post ReplyReply Direct Link To This Post Posted: 03 July 2009 at 12:08am
im just gona model some stuff and link it...

*edit* what degree in radians would you suggest i model them in? i intend to use them both outdoors in fields (this is FARM country 10 minutes to the west) and in warehouses and abandoned garages (industrial stuff to the east of me downtown)...


Edited by ಠ_ಠ - 03 July 2009 at 12:11am
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tommysb View Drop Down
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Joined: 24 April 2006
Location: Finland
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Points: 1036 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tommysb Quote  Post ReplyReply Direct Link To This Post Posted: 05 July 2009 at 12:20pm
Half space. Which is 2pi steradians.
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