Vague horn questions

bigwill · 21st December 2007, 02:05 PM

Is it possible to get a backloaded 18" driver from 40Hz to around 150Hz with 100dB or more efficiency? (In a bass "scoop")
Is the subjective bass quality tight and clean?

I have actually read around the internet quite a bit on this subject but I haven't been able to answer these questions.

Usually I'm all for OB bass but horns have grabbed my attention recently, namely due to their high efficiency.

I don't require deep bass but I love 'punchy' and 'tight' bass, which horns are said to be renowned for and I would love a system that was 100dB from 40hz-20,000hz

bigwill · 21st December 2007, 02:06 PM

(Don't worry about putting huge effort into answers this is all mere speculation on my part at the moment)

GM · 21st December 2007, 02:56 PM

Yes/yes, think big.

limono · 21st December 2007, 04:00 PM

Hi
Check out Audiogon listing of Edgar Horn mid bass (sold) .There is a picture of dual 18" BLH built by JohnK (John Kalinowski) It will give you an idea of how big those bass towers are . John is very friendly and helpful ,I 'd shot him an email .My EV Patrician IV sporting 18" is twice the size of my bachelor fridge . (a little bigger than double door fridge) .

bigwill · 21st December 2007, 06:14 PM

How well would scaling this up to fit a suitable 18" driver work:

http://www.dancetech.com/aa_dt_new/a...did=171&lang=0

GM · 21st December 2007, 06:34 PM

Considering Hornresp, etc., why would you want to take such a hit-or-miss performance gamble?

GM

bigwill · 21st December 2007, 06:40 PM

I haven't figured out hornresp yet

Maybe I should.........

AKN · 21st December 2007, 07:02 PM

Hi,

How about this Rog Mogale designed scoop (18" driver):
http://www.speakerplans.com/index.php?id=18superscooper

Rog has caveats for scoops muddying midbass just where the driver direct radiation starts to rise and mix with the horn output.

I have built 15" scoops in the past and was quite satisfied. It should be mentioned that I used my scoops below the supposed "trouble range" in the upper midbass.

Se this JBL document for typical scoop response curves:
http://www.jblpro.com/pub/obsolete/L...nclosures2.pdf
It can be seen that everything is fine under ~100Hz then comes the "trouble range" as mentioned above.

21st December 2007, 02:05 PM	#1
bigwill diyAudio Member Join Date: Dec 2004 Location: UK	Vague horn questions Is it possible to get a backloaded 18" driver from 40Hz to around 150Hz with 100dB or more efficiency? (In a bass "scoop") Is the subjective bass quality tight and clean? I have actually read around the internet quite a bit on this subject but I haven't been able to answer these questions. Usually I'm all for OB bass but horns have grabbed my attention recently, namely due to their high efficiency. I don't require deep bass but I love 'punchy' and 'tight' bass, which horns are said to be renowned for and I would love a system that was 100dB from 40hz-20,000hz

21st December 2007, 02:56 PM	#3
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Yes/yes, think big. __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

21st December 2007, 06:34 PM	#6
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Considering Hornresp, etc., why would you want to take such a hit-or-miss performance gamble? GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

21st December 2007, 07:02 PM	#8
AKN Enjoy good sound diyAudio Member Join Date: Aug 2005 Location: In the middle of Sweden	Hi, How about this Rog Mogale designed scoop (18" driver): http://www.speakerplans.com/index.php?id=18superscooper Rog has caveats for scoops muddying midbass just where the driver direct radiation starts to rise and mix with the horn output. I have built 15" scoops in the past and was quite satisfied. It should be mentioned that I used my scoops below the supposed "trouble range" in the upper midbass. Se this JBL document for typical scoop response curves: http://www.jblpro.com/pub/obsolete/L...nclosures2.pdf It can be seen that everything is fine under ~100Hz then comes the "trouble range" as mentioned above. __________________ / Anders

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

21st December 2007, 02:06 PM	#2
bigwill diyAudio Member Join Date: Dec 2004 Location: UK	(Don't worry about putting huge effort into answers this is all mere speculation on my part at the moment)

21st December 2007, 04:00 PM	#4
limono diyAudio Member Join Date: Mar 2007	Hi Check out Audiogon listing of Edgar Horn mid bass (sold) .There is a picture of dual 18" BLH built by JohnK (John Kalinowski) It will give you an idea of how big those bass towers are . John is very friendly and helpful ,I 'd shot him an email .My EV Patrician IV sporting 18" is twice the size of my bachelor fridge . (a little bigger than double door fridge) .

21st December 2007, 06:14 PM	#5
bigwill diyAudio Member Join Date: Dec 2004 Location: UK	How well would scaling this up to fit a suitable 18" driver work: http://www.dancetech.com/aa_dt_new/a...did=171&lang=0

21st December 2007, 06:40 PM	#7
bigwill diyAudio Member Join Date: Dec 2004 Location: UK	I haven't figured out hornresp yet Maybe I should.........

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Horn segmenting questions	FlipC	Subwoofers	2	8th September 2008 11:09 PM
horn questions	e-side	Multi-Way	39	22nd August 2005 08:39 PM
Horn questions	slackerbob	Subwoofers	11	1st August 2005 10:31 PM
A some horn questions	mashaffer	Multi-Way	3	19th May 2005 02:58 PM
Fostex 103 horn questions	GrahamnDodder	Full Range	12	2nd March 2004 06:53 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read