Horn for 2440

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

Hi,

- Read this thread from last year 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 ) .

<> :)

Quote:

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Originally Posted by nic

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

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Why don't you just use the original horn?

Quote:

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Originally Posted by nic

Hi

Does anyone have plans for a wooden horn for a 2440, planing to go from 500 to 7000Hz.

Nic

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Wood horn A290E for 375,2440,2441 and Tad

Huynh Chau

- Thanks for posting those drawings !

<> :)

nic,

- Check out reVintages' thread on modifying ( massacring ) an Altec 511 horn to accept a 2441 driver .

- 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 .

nic

http://audioheritage.csdco.com/vbull...1&d=1172597397

http://audioheritage.csdco.com/vbull...1&d=1176577468

- Check out John Ws' thread on making H9800 clones.
- 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/vbull...1&d=1172597549

http://audioheritage.csdco.com/vbull...1&d=1172677735

-Also, follow Johnnys' thread ( yggdrasil ) for his insights about making a tractrix flared radial .

http://audioheritage.csdco.com/vbull...1&d=1172613837

:)

ps ; do a search for threads authored by either John W ( or yggdrasil ) for more info .

Quote:

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Originally Posted by Earl K

Huynh Chau

- Thanks for posting those drawings !

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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

Quote:

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Originally Posted by Huynh Chau

Wood horn A290E for 375,2440,2441 and Tad

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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

Quote:

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Originally Posted by Mr. Widget

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

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It has been up here before: http://audioheritage.org/vbulletin/s...ghlight=yuichi

The drawing is nowhere as good, and the reading is .... hard.

This one ?:D