[JN] WE bi-flex article

Hans Hedal hans.hedal at post.cybercity.dk
Mon Apr 22 07:58:49 CDT 2019

Hans Hedal wrote:
> Den 11-04-2019 kl. 13:54 John Day wrote:
>>>     On 4/10/19 6:30 AM, peter sikking wrote:
>>>     >hey Joes,
>>>     >
>>>     >the retro vintage modern hi-fi blog has a WE publication
>>>     >article up today that is right up our alley:
>>>     >
>>>     ><http://www.itishifi.com/2019/04/western-electric-oscillator-1947-what.html>
>>>     >
>>>     >enjoy,
>>>     >
>>>     >
>>>     >     --ps
>> I wonder what modern speakers were influenced by that article, and to 
>> what degree, with what trade-offs.
>> I think this one was influenced, and Joe immediately spotted the 
>> similarity when I used it in a 2-way back-loaded horn, but the 
>> trade-off is that big peak at 1500 Hz. You really can't use it. 
>> Without that it has a good gutsy sound.
>> https://www.parts-express.com/pedocs/specs/290-404--eminence-beta-8a-spec-sheet.pdf 
>> https://www.parts-express.com/eminence-beta-8a-8-midrange-pa-driver--290-404?utm_source=google&utm_medium=cpc&utm_campaign=pla&gclid=CjwKCAjwy7vlBRACEiwAZvdx9tHiT9xFN6r_sFJ7lwHK9NhyBDEFYOKeAF0YhdQjbQy5HQVRkszi-BoCIK4QAvD_BwE
>> image.png
> For those who forgot the WE bi-flex thread some days ago. Ian just 
> gave an additional example to John's question, about which modern 
> speakers were influenced by this series of WE loudspeakers:
> "On list is a pair of L Cao full range speaker. The motor is composed 
> of expensive and good sounding alnico magnets. The paper cone is 
> hand-made.
> The paper cone profile is designed with reference to the legendary 
> Diatone PM610. This cone profile was designed under an extensive 
> research by NHK of Japan way back in 1950's as an effort to make a 
>  single cone full range speaker without the normal cone breakup 
> problem of conventional wide range drivers. The result is a no-whizzer 
> design with exceptional frequency response, wide dispersion and 
> low-distortion performance, in par with the cone profile of Western 
> Electric's WE755a."
> I have no ready-made answers to what degree, and what compromises were 
> made.
> Hans
If you consider all loudspeakers later than the development of the "WE 
bi-flex" series as "modern speakers", I would say, this also was heavily 
influenced by the "WE bi-flex" series:

"Goodmans Axiette speaker was one of the first of the single-cone truly 
full-range drivers with smooth and extended response of 40 Hz to 15 kHz. 
Goodmans Axiette was Ted Jordan's first project for Goodmans after 
joining them in 1952."

See also the appended gif-file 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.soundlist.org/pipermail/sound/attachments/20190422/5a793b0c/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 43165 bytes
Desc: not available
URL: <http://mailman.soundlist.org/pipermail/sound/attachments/20190422/5a793b0c/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 292_1.gif
Type: image/gif
Size: 412208 bytes
Desc: not available
URL: <http://mailman.soundlist.org/pipermail/sound/attachments/20190422/5a793b0c/attachment.gif>

More information about the Sound mailing list