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Old 14th June 2010, 11:27 AM   #1
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Default First Tapped Horn Design - PA

Hello All, my first post here.
So I have been messing around with Hornresp trying to get my head around the intricacy that is horn design and I think I have come up with what I would think would be a decent horn for PA use. Of course there is probably something wrong with the design so please have a look and see what you can see.

Thanks
Dylan B.
Attached Images
File Type: jpg Input.JPG (66.1 KB, 314 views)
File Type: jpg SPL.JPG (50.3 KB, 300 views)
File Type: jpg Phase.JPG (58.4 KB, 294 views)
File Type: jpg Delay.JPG (44.5 KB, 276 views)
File Type: jpg Impulse.JPG (34.6 KB, 274 views)
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Old 14th June 2010, 01:32 PM   #2
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not very good spl for a p.a. horn, it's 400 liters, and only around 95db sensitive.
extension is deep though, but you'll run out of xmax at not so high volume.

don't sim in 0.5 pi either. use 2.0pi
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Old 14th June 2010, 03:50 PM   #3
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Welcome to the forums.

For PA use, it would be better to target 40Hz than 30Hz. Going that bit lower requires a bigger cabinet, but you're unlikely to use the extra extension.
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Old 14th June 2010, 04:54 PM   #4
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Depends on how serious the place you are using it is about LF exstension. Ministry of sound has a PA system thats about 155dB @ 30Hz. But to achive that they have enormous horn loaded stacks and many many multi KW amplifiers.
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Old 14th June 2010, 09:56 PM   #5
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If your happy with a 400 litre size for a PA cabinet maybe you should look at screamerusa's Tapped horns
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LIVE SOUND Specific Tapped Horn thread...
Cabinet plans
furybox
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Old 15th June 2010, 06:59 AM   #6
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Thanks for the input guys, would this sub be better? Also what would be a good SPL to aim for from say 40-100hz?
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Old 15th June 2010, 07:59 AM   #7
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that looks good, but i guess the description of the speaker is wrong ? etone 1020 is a 10 inch and you put in an sd of 490cm2 ? that's the sd of a 12 inch.
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Old 15th June 2010, 08:16 AM   #8
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Well that was a major brainfart, makes a bigger difference than I thought as well. Looks like it is back to the drawing board.
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