First Tapped Horn Design - PA

FreakyShotGlass · 14th June 2010, 11:27 AM

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.

polviggen · 14th June 2010, 01:32 PM

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

chris661 · 14th June 2010, 03:50 PM

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.

kipman725 · 14th June 2010, 04:54 PM

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.

Xoc1 · 14th June 2010, 09:56 PM

If your happy with a 400 litre size for a PA cabinet maybe you should look at screamerusa's Tapped horns
Thread
LIVE SOUND Specific Tapped Horn thread...
Cabinet plans
furybox

FreakyShotGlass · 15th June 2010, 06:59 AM

Thanks for the input guys, would this sub be better? Also what would be a good SPL to aim for from say 40-100hz?

polviggen · 15th June 2010, 07:59 AM

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.

FreakyShotGlass · 15th June 2010, 08:16 AM

Well that was a major brainfart, makes a bigger difference than I thought as well. Looks like it is back to the drawing board.

14th June 2010, 03:50 PM	#3
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	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. __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

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14th June 2010, 01:32 PM	#2
polviggen diyAudio Member Join Date: Aug 2009	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

14th June 2010, 04:54 PM	#4
kipman725 diyAudio Member Join Date: Jun 2007 Location: London/N.lincs	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.

14th June 2010, 09:56 PM	#5
Xoc1 diyAudio Member Join Date: Nov 2008 Location: Devon UK	If your happy with a 400 litre size for a PA cabinet maybe you should look at screamerusa's Tapped horns Thread LIVE SOUND Specific Tapped Horn thread... Cabinet plans furybox

15th June 2010, 07:59 AM	#7
polviggen diyAudio Member Join Date: Aug 2009	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.

15th June 2010, 08:16 AM	#8
FreakyShotGlass diyAudio Member Join Date: Nov 2009	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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