Iwata Vs Smith horn

[Bruno GINARD]

.... i ve seen your pic, and compare with my horns.... Realy, the curve is not the same...

I have plans of the TAD and will compare the steps of the curve from the throw to the mouth...

[lucfm]

Babelfish or Frenchfish.... I got about the same info from both.

I too am interested in the Iwata horns. What flare rates are used etc. I get the feeling that Phil is a bit protective of the products he is producing, however without a thorough discussion of what he is producing, I would expect sales to be limited.


Widget

I own since a few days four PDF files wich may contain useful informations as they are the Naota Iwata patents. Unfortunately, they are written in japanese and have been saved in image form only : I couldn't use Babelfish to translate...frustrating!!!
I would appreciate any help to solve this problem. The pdf are joined to my message.
52-48310 , 54-59129 , 54-45120 , JP 55 133 198. JP52048310_Iwata.pdf

JP54045120_Iwata.pdf

JP55133198A.pdf

JP54059129A.pdf

Thanks.

Best regards,

Luc

[Hoerninger]

Thank you for your input!

they are written in japanese ...frustrating!!!

It seems to be like a secret.
Looking at the pdfs you will notice that each consists of several pages. There are tables and drawings. It is readily identifiable that this horn should create a sperical wavefront with growing radius.
____________
Peter

[gerard]

Why don't you ask Don Mc Ritchie for translating . I am sure he now has a lot of nice .... friends in Japan after his tokyo trip .




Gerard

[lucfm]

Why don't you ask Don Mc Ritchie for translating . I am sure he now has a lot of nice .... friends in Japan after his tokyo trip .


Gerard

That would be a nice idea...don't you think , Don ??
Seriously, the Iwata patents can't be translated by the Japanese Patent Office free translation computer ( too old ( 1980 ) , only available for patents later than 1993 ) and the characters images saved in the pdf files cannot be recognised by OCR.
The JP,55-133198,A ( 1980 ) seems to be the most interesting, followed by the 54-59129 and than the 52-48310 ( seems to be an original reactance annulling technique ).
Obviously, any information that could unveil some of the mystery about these excellent horns would be welcome.

Best regards,

Luc

[northwood]

Hi all,

For me IWATA horn shall be the next evolution in my system...3 months ago i changed the metallic 2390 for a TAD 4003 horn and... it's now impossible to come back to the old serpentine lense.

THe other advantage with an Iwata horn is to cut between 350 to 400 Hz, against 500 for the 2390 or 600/650 for the TAD.

Look at Dominique Jourdan home page ( north of France) :

http://persocite.francite.com/jodipav//

Regards

Gorgeous