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Corner horn

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Posted on October 24, 2009 at 08:38:28
hifido
Audiophile

Posts: 10
Joined: October 24, 2009
Hi all.
Newby to the site.


Hope you guys can help. I am working on a horn speaker project. I have been considering using the Tannoy GRF corner cabinet for the bass enclosure. The plans for the GRF I have found on the internet I feel are incomplete. Can anybody recommend a good aternative to the Tannoy or klipsch corner horns? I dont want to go any larger than these.neater if possible. I want to use one single 15" driver per bass cabinet. Good working drawings would be great. Any suggestions would be much appreciated.

Hope someone can help. Thanks hifido

RE: Corner horn, posted on November 3, 2009 at 20:32:33
gilmorneau
Audiophile

Posts: 131
Location: Colorado
Joined: August 10, 2004
 Jensen Imperial. Much easier to build than either the Klipsch or the Tannoy, and a very good, rear-loaded corner horn. Big as the others, though. I have plans if you need them, or they might be online somewhere.

RE: Corner horn, posted on October 30, 2009 at 14:41:13
cids
Audiophile

Posts: 364
Joined: April 20, 2002
 You should try the famous Onken cabinet. You might like it.

Delgado & Klipsch (JAES, 2000), posted on October 26, 2009 at 09:26:24
WithTarragon
Audiophile

Posts: 103
Location: New England
Joined: June 29, 2007
 Delgado & Klipsch (JAES, 2000)
The article outlines a bifurcated, folded bass bin that was a follow up to the Klipschorn. It has the same footprint, but improved bandwidth, efficiency, and lower distortion. Have a look at the article. If you are still interested, then there is follow up info and construction tips on the Klipsch forums.

RE: Corner horn, posted on October 26, 2009 at 08:27:22
Hornlover
Manufacturer

Posts: 1013
Joined: March 8, 2002
 One of the best soulding systems I have ever heard was a pair of Tannoy HPD 385's in the Jensen Imperial corner horns. A very good match. Good plans are available on the net. Just google 'jensen imperial plans', and I'm sure you can find them. The are largish, like any other corner horn, but thats the laws of physics. If you want bass, thats the penalty you pay.

RE: Corner horn, posted on October 26, 2009 at 06:01:01
nl
Audiophile

Posts: 559
Joined: March 18, 2002
 The classic cornerhorn designs are pretty good. I would look into the Tannoy Autograph. You might find an ambitious craftsman who could build it for you.

Folded horns are problematic, however. These days, more people are working with straight midbass horns of about 100hz cutoff. Like the Edgarhorn system for example. This sounds much better in the 200hz-600hz range needed to mate with the midrange horn. Then, people use either a sealed sub or a horn sub below 80-100hz. In this bass range, folds don't matter so much. Also, you can use a tapped horn sub like the Danley stuff.

RE: Corner horn, posted on October 25, 2009 at 20:35:01
freddyi
Audiophile

Posts: 1717
Joined: December 6, 2001
 some years ago Dana Moore ("DMoore" at AA) had a design for the Eminence CB15 which looked somewhat easier to cut than the Klipschorn - -I don't know if he ever returned to the Klipsch forum or not - fwiw here's one old THREAD on a non-corner horn - maybe you can contact him?

I don't know how well that or K-horn will sound with 45's power -- I run a cheap SE EL34UL amp with Khorns and its adequate as long as bass dynamics aren't needed - ~ 5-8 watts good enuff for most of my Ventures cds - Khorn in my room has indistinct bass - some of that must be wall resonances - but maybe some of its the Khorn(?)

go over to the Klipsch forums including "updates and modifications" as see what those guys think might be cool and work for your situation - -maybe there's a fullrange backloaded horn which could work for you

RE: Corner horn, posted on October 25, 2009 at 11:42:10
dbphd
Audiophile

Posts: 193
Location: Montecito, CA
Joined: September 6, 2006
 I built one of these, or an Altec design awfully like it, when I was in high school 60 years ago and used it until I borrowed an A7-500 from the lab when I was a grad student.

db

RE: Corner horn, posted on October 25, 2009 at 20:20:28
hifido
Audiophile

Posts: 10
Joined: October 24, 2009
Thanks guys for all your input.It is certainly appreciated. I currently use a full range speaker system. This is my first attempt at horn speakers.I recently purchased a pair of type 45 mono -blocks. so I now need speakers with very high efficency. Horns appear to be the natural choice.My dedicated listening room is on the small size so the speaker foot print is very important to me.Corner horns seem to be the best choice for space. I would like the corner speakers to be horn loaded. The only two I have found are the Tannoy GRF and the klipcsh which are on the large side. I am hoping to find something neater.
RE: Corner horn, posted on October 24, 2009 at 15:22:24
David Yost
Audiophile

Posts: 513
Location: Atlanta
Joined: May 12, 2006
 Here is a good one.

That's a corner cabinet..., posted on October 24, 2009 at 16:12:50
eso
Manufacturer

Posts: 5272
Location: Long Beach, CA, USA
Joined: March 15, 2001
 ... but not a corner horn.




eso
They were a carnival of American decay on parade, and they had no idea of the atrocity they had inflicted upon themselves–Henry Chinaski
RE: That's a corner cabinet..., posted on October 25, 2009 at 07:12:58
David Yost
Audiophile

Posts: 513
Location: Atlanta
Joined: May 12, 2006
 Isn't that what was asked for? I didn't realize that the OP was looking for corner horns exclusively.

RE: That's a corner cabinet..., posted on October 25, 2009 at 10:25:50
Matts_
Audiophile

Posts: 1975
Joined: February 4, 2005
 check out pi 7's; that's a true corner horn

RE: check out pi 7's; that's a true corner horn, posted on October 25, 2009 at 14:21:11
Bill Fitzmaurice
Industry Professional

Posts: 4054
Location: New England
Joined: October 20, 2002
 It's a bass reflex box aimed into a corner. That will give eighth space loading, but since the 'horn' formed by the corner placement is only a foot or so long and the throat is larger than the driver there's no real horn loading going on there.

RE: check out pi 7's; that's a true corner horn, posted on October 30, 2009 at 13:21:36
V
Audiophile

Posts: 40
Joined: January 28, 2007
 The midhorn works down to 200Hz and the speaker is fully horn loaded above that. Below that room modes dominate.

RE: check out pi 7's; that's a true corner horn, posted on October 30, 2009 at 13:55:58
Bill Fitzmaurice
Industry Professional

Posts: 4054
Location: New England
Joined: October 20, 2002
 "The midhorn works down to 200Hz and the speaker is fully horn loaded above that. Below that room modes dominate."

The OP is looking for a corner horn, not a reflex woofer with horn loaded mids and highs that's placed in a corner.

RE: check out pi 7's; that's a true corner horn, posted on November 2, 2009 at 07:39:56
V
Audiophile

Posts: 40
Joined: January 28, 2007
 Seeing how hifido is interested in RCA-Fan's "half horn" cabinet, it looks to me like he is not limiting his choices to those only with basshorns.

RE: That's a corner cabinet..., posted on October 25, 2009 at 12:46:52
djk
Manufacturer

Posts: 3886
Joined: June 17, 2000
 I didn't realize all I had to do was take my vented box and face it backwards into the corner!
RE: Corner horn, posted on October 24, 2009 at 15:42:51
hifido
Audiophile

Posts: 10
Joined: October 24, 2009
Thanks David. Much appreciated. Have you built the cabinet yourself?

RE: Corner horn, posted on October 25, 2009 at 07:17:05
David Yost
Audiophile

Posts: 513
Location: Atlanta
Joined: May 12, 2006
 I have not built one, but have used a factory built cabinet loaded with a 604E and was very pleased. Bass was tight, well defined and had real impact -- I'm sure corner loading helps to extend the response, too.

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