Horns, bends and upper mids

lndm · 1st May 2006, 03:57 AM

I want to design a front horn that extends from bass to a couple of kHz. The thing is, I don't want to have to buy the block next door.

Can I implement a slow 180 degree crescent and retain the mids? I want to design so the horn's top end rolls off my driver in lieu of a crossover so I would like to have a little predictability.

It won't need to be perfect, I am (maybe wrongly) thinking you'll need to be able to 'see' the cone when putting mids through a front horn.

el`Ol · 1st May 2006, 01:23 PM

When you load the PM250 in the bass you have 100dB and a nice rolloff. I am no expert, but I never heard about anybody who has successfully designed a widerange horn.

http://www.ciare.com/pdf/catalogo/PM250.pdf

palesha · 1st May 2006, 04:54 PM

There r hardly any drivers covering good low bass & good mid upto few kiloherts. U can get horn from 300~400 hz to 2 kiloherts. Then u must hv sub & high frequency drivers seperately for u.

lndm · 1st May 2006, 10:22 PM

What parameters indicate bandwidth in a driver for this purpose?

My drivers exhibit low mass rolloff according to Dr. Bruce Edgar's formulas, but a midrange horn seems to be possible all the same.

I have simulated what I want in Hornresp, nothing there (that I can see) suggests it will not work.

1st May 2006, 03:57 AM	#1
lndm diyAudio Member Join Date: Mar 2006 Location: nsw	Horns, bends and upper mids I want to design a front horn that extends from bass to a couple of kHz. The thing is, I don't want to have to buy the block next door. Can I implement a slow 180 degree crescent and retain the mids? I want to design so the horn's top end rolls off my driver in lieu of a crossover so I would like to have a little predictability. It won't need to be perfect, I am (maybe wrongly) thinking you'll need to be able to 'see' the cone when putting mids through a front horn.

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1st May 2006, 01:23 PM	#2
el`Ol diyAudio Member Join Date: May 2005 Location: Bavarian Forest	When you load the PM250 in the bass you have 100dB and a nice rolloff. I am no expert, but I never heard about anybody who has successfully designed a widerange horn. http://www.ciare.com/pdf/catalogo/PM250.pdf

1st May 2006, 04:54 PM	#3
palesha diyAudio Member Join Date: Nov 2001 Location: Pune India	There r hardly any drivers covering good low bass & good mid upto few kiloherts. U can get horn from 300~400 hz to 2 kiloherts. Then u must hv sub & high frequency drivers seperately for u.

1st May 2006, 10:22 PM	#4
lndm diyAudio Member Join Date: Mar 2006 Location: nsw	What parameters indicate bandwidth in a driver for this purpose? My drivers exhibit low mass rolloff according to Dr. Bruce Edgar's formulas, but a midrange horn seems to be possible all the same. I have simulated what I want in Hornresp, nothing there (that I can see) suggests it will not work.

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