Wood horns are the most beautiful and the finest speaker system. Especially,
hard wood made horn shows excellent performance and looks. Though it is
a little hard to complete the work, if we challenge hard wood materials,
the result would be satisfactory for us. However, we need to provide several
kinds of power tool for handicraft.
You can find out handicraft and assembly process how to make horn systems.
Also, you can understand its properties including a frequency response,
a impedance curve, a sound directivity and others in each model.
About the design of the horn with fins, some idea is shown. click Here |
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Above photo is a A-290 wood horn system. Its cut-off frequency is 290Hz.
Therefore, we can use this horn higher than 600Hz (290Hzx2). High end limit
depends upon driver capability. Throat size is 2 in or 5cm. Pioneer TAD
(Technical Audio Devices) 400X family or JBL-244X family divers can be
mountable on this horn. Flare curve is hyperbolic and the horn has four
fins inside. So, this horn has very good sound directivity property.
Left side horn is a A-480 wood horn system. Cut-off frequency is 480Hz.
Therefore, this horn can be used higher than 800Hz. Throat size is 1in
or 2.5cm. TAD 2001 or many JBL drivers can be mountable. High end frequency
limit depends upon driver capability. However, most of 1in driver has good
high frequency property by 20KHz. So, this can be used as a tweeter in
a two way systems.
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Right hand photo is a A-800a horn for replacement of coaxial horn with
Gauss or other 15 in or 38cm coax speakers which usually has thin plastic
made coaxial horn tweeter. This A-800 may replaces those coaxial horn to
improve absorption of mechanical resonance because wood material has higher
internal loss. There are many variations to fit deferent types of speakers
such as Gauss or Altec or others.
You will enjoy individual horn detail data by clicking each link below. |
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| Links to Horn Speaker Building Pages |
| Horn Model |
Throat Size |
Cut-off |
Flare |
Type |
Note |
Link |
| A-190E |
10 in Direct radiator Driver (Electo Voice) |
250 Hz |
Exponential |
Short cut |
No fin |
A-190E |
| A-290 |
2 in or 5 cm Drivers |
290 Hz |
Hyperbolic |
Full size |
Fin x 4 |
A-290 |
| A-290S |
2 in or 5 cm Drivers |
290 Hz |
Hyperbolic |
Full size |
Fin x 4 |
A-290S |
| A-290FL |
2 in or 5 cm Drivers |
300 Hz |
Hyperbolic |
Full size |
No fin |
A-290FL |
| A-300E |
2 in or 5 cm Drivers |
300 Hz |
Exponential |
Full size |
Fin x 4 |
A-300E |
| A-480 |
1 in or 2.5 cm Drivers |
480 Hz |
Hyperbolic |
Full size |
Fin x 4 |
A-480 |
| A-480FL |
1 in or 2.5 cm Drivers |
480 Hz |
Hyperbolic |
Full size |
No fin |
A-480FL |
| A-480WE |
Proprietary (Western Electric 555) |
480 Hz |
Hyperbolic |
Full size |
No fin |
A-480WE |
| A-800 |
Proprietary |
800 Hz |
Hyperbolic |
Full size |
No fin |
A-800 |
| A-1K |
1 in or 2.5 cm Drivers |
1200 Hz |
Hyperbolic |
Full size |
No fin |
A-1K |
| A-10K |
1 in or 2.5 cm Drivers |
8000 Hz |
Hyperbolic |
Short cut |
No fin |
A-10K |
| Horn Design |
For A-290 |
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A-290Design |
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Yellowstone National Park, WY USA (Photo by Yuichi) |
