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Hi
Does anyone have plans for a wooden horn for a 2440, planing to go from 500 to 7000Hz.
I'm building a new tri amped system with double 2225 bass, 2440 mids and 2405 high :D
Thanks
Nic
Earl K
04-09-2008, 07:52 AM
Hi,
- Read this thread from last year (http://audioheritage.csdco.com/vbulletin/showthread.php?t=15395&highlight=RCA+Radial) for some ideas .
- Also, do a site search for " radial horn " to see what turns up .
- Radial horns are pretty straight forward . The horizontal axis is planar ( deemed to be a conical expansion ) with the vertical expansion being exponential .
- I prefer Altecs' aspect ratio of the mouth ( Height vs Width ) for their radial designs ( called sectorals ) over what was used by JBL or even RCA .
- Buying a pair of JBL 2328 cast metal throats can simplify the "entry to horn bell" conundrum ( design ) .
<> :)
Hi
Does anyone have plans for a wooden horn for a 2440, planing to go from 500 to 7000Hz.
I'm building a new tri amped system with double 2225 bass, 2440 mids and 2405 high :D
Thanks
Nic
Why don't you just use the original horn?
Huynh Chau
04-10-2008, 09:18 AM
Hi
Does anyone have plans for a wooden horn for a 2440, planing to go from 500 to 7000Hz.
Nic
Wood horn A290E for 375,2440,2441 and Tad
Earl K
04-10-2008, 09:46 AM
Huynh Chau
- Thanks for posting those drawings !
<> :)
Earl K
04-11-2008, 06:26 AM
nic,
- Check out reVintages' thread on modifying ( massacring ) an Altec 511 horn to accept a 2441 driver . (http://audioheritage.csdco.com/vbulletin/showthread.php?t=18516&highlight=Massacre)
- This ought to be a pretty decent sounding horn ( once the metal bell is damped somewhat ) .
- This could all be done in wood .
:)
- Here are some pics from that thread .
Earl K
04-11-2008, 07:42 AM
nic
http://audioheritage.csdco.com/vbulletin/attachment.php?attachmentid=23247&stc=1&d=1172597397
http://audioheritage.csdco.com/vbulletin/attachment.php?attachmentid=24361&stc=1&d=1176577468
- Check out John Ws' thread on making H9800 clones. (http://audioheritage.csdco.com/vbulletin/showthread.php?t=14933&page=1)
- Though the H9800 has a 1.5" entry, this thread can provide a lot of ideas & inspiration to the novice horn builder .
http://audioheritage.csdco.com/vbulletin/attachment.php?attachmentid=23248&stc=1&d=1172597549
http://audioheritage.csdco.com/vbulletin/attachment.php?attachmentid=23269&stc=1&d=1172677735
-Also, follow Johnnys' thread ( yggdrasil ) for his insights about making a tractrix flared radial (http://audioheritage.org/vbulletin/showthread.php?t=8363) .
http://audioheritage.csdco.com/vbulletin/attachment.php?attachmentid=23256&stc=1&d=1172613837
:)
ps ; do a search for threads authored by either John W ( or yggdrasil ) for more info .
Mr. Widget
04-11-2008, 08:10 AM
Huynh Chau
- Thanks for posting those drawings !
Yes, yes, yes!
People are frequently asking for just this sort of horn. Do you have any background on it, i.e. who designed, it's history etc.
Widget
Thanks for all the replies. I'll look at the linked threads closely.
I also stumbled on the Iwata horn, which from what I have read is the "perfect" horn when it comes to wave propagation and loading of drivers like the 2441 and 2440.
It's not a straight forward build though due to the different expansions coefficients in the 2 dimensions ..
I have pair of Altec 511 with matching 802 drivers so don't really want to massacre them just now !
Thanks
Nic
Wood horn A290E for 375,2440,2441 and Tad
Thanks, any chance you have the CAD files available ?
DXF, DWG ?
I can then cut templates using our laser , makes the job a LOT easier
Thanks
Nic
yggdrasil
04-16-2008, 04:56 AM
Yes, yes, yes!
People are frequently asking for just this sort of horn. Do you have any background on it, i.e. who designed, it's history etc.
Widget
It has been up here before: http://audioheritage.org/vbulletin/showthread.php?t=12129&highlight=yuichi
The drawing is nowhere as good, and the reading is .... hard.
paragon
04-24-2008, 10:59 AM
This one ?:D
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