Acoustic Horn Design – The Easy Way (Ath4)

[tmuikku]

Jeah I remembered it made flat wavefront but it is dispersing instead never mind..

 

[diyiggy]

How to make flat enough a 3" in a horn ??? And people like Dr Gedlle seems against that : I mean not 3" compression driver but 3" cones. Which one are you talking about please ?


The 3" Faital in horn ?

 

[mabat]

Free standing OS waveguide, 1.4" throat, ⌀980 x 430 mm

 

[mabat]

⌀740 x 360 mm

 

[mabat]

Quite a beast -

 

[jzagaja]

How to make flat enough a 3" in a horn ???

Faital 5FE120 with printed plug. Many advocates idea of true midrange driver in a horn or waveguide - WE15A lovers. Not many can afford Ale Acoustic D-125,
Goto SG 146, Community M4 (3-6k), Ale Acoustic 5500, Vitavox S3 or S2, Altec 288, JBL 2420 / LE85 / LE175, Atlas IED, PD-5VH, Klipsch 55.

Marcel - very good better than mine

 

[mabat]

2" throat, ⌀940 x 430 mm.

 

[mabat]

Yet another one - 2" throat, ⌀750 x 360 mm:

 

[mabat]

The same as above, 1.4" throat:

 

[mabat]

1" throat, ⌀600 x 280 mm.

 

[mabat]

By slightly different throat opening angle the radiation impedance can be fine-tuned, for those who care

 

[Ro808]

#3468, #3469 & #3470 are non-OS?

 

[mabat]

Yep. Maybe a quadratic throat would be worth exploring too, in a bigger scale: circular or elliptical arc + conical part + SE termination + rollback. Easy enough.

 

[tmuikku]

yes, conical part as in multiple entry horn!

 

[mabat]

I think some of the recent profiles are quite promising. Beaming somewhat but remarkably gradually through the whole audio band.
- One of those will be definitely a good candidate for the Faital HF1440.

 

[Mindsource]

How to make flat enough a 3" in a horn ??? And people like Dr Gedlle seems against that : I mean not 3" compression driver but 3" cones. Which one are you talking about please ?


The 3" Faital in horn ?

I understand if English is not your first language. I've always been a believer that so long as the point gets across it's alright. But can you please make a bit of an attempt to spellcheck? You misspell Dr. Geddes name practically every time.

 

[mabat]

Still reasonably sized free standing WG for a 1" driver - ⌀460 x 220 mm.

 

[TNT]

Impedance wise, this is a 3,5k horn?

//

 

[mabat]

Sorry, what?

 

[mabat]

BTW, all these recent results were for a flat source wavefront. For a driver with a conical exit (as most do) it could be slightly different, maybe even better - I'm working on that.