The Whole Truth About Beryllium Diaphragms

[doug20]

Originally posted by 454Casull

Who knows? Tough to get that sort of performance out of an aluminum or titanium 1" dome, though.

Who Knows....Hint 30K is not audible at all

[gedlee]

Originally posted by doug20
Mr. Mowry's claim is a simple one and its based on false advertising which Usher still seems to commit...sigh.

And apparantly don't seem to care that the statements are false.

I know the Pres. of Usher, I'm going to ask him his thoughts.

[doug20]

I would love to be a fly on the wall in your world! The discussions and people involved would be very enlightening.

[gedlee]

Originally posted by doug20
The discussions and people involved would be very enlightening.

I think that the realities of audio would be more of a disppointment than an enlightenment.

I have lunch with my friend regularly and we talk audio. Its very disappointing to see where the industry is going, how it has gone down hill for years. How sound quality is all but irrelavent in the marketplace and how its all about marketing and distribution. Its about what consumers want and sound quality isn't big on the list. Its a fashion driven industry where flash and glitz sells (like Be diaphragms.) If I weren't trapped in this industry I would be somewhere else. Its not like it used to be, its very sad.

[DcibeL]

Originally posted by gedlee
I think that the realities of audio would be more of a disppointment than an enlightenment.

Not only in audio field, but business in general.

In my electronics education, we had a class on writing technical documents. A very small portion of this class included marketing documents. Our first assignment was about misleading the customer/reader. I can only imagine what kind of practises might be taught if I went to an entire course on marketing.

[gedlee]

Originally posted by gedlee

I know the Pres. of Usher, I'm going to ask him his thoughts.

I should correct. My friend manages many brands, but Usher is not one of them.

"Then they should burn!!"

[soongsc]

Originally posted by doug20



lol, Its cool to read the other side but to me Usher should just stop marketing with the term Be?

If they acknowledge the speaker performs great without Be then just come clean, apologize and remove it from all documentation.

Mr. Mowry's claim is a simple one and its based on false advertising which Usher still seems to commit...sigh.

This is the point that reveals an interesting story:
"5. Usher has obtained one of the ¡§pure¡¨ or ¡§legitimate¡¨ Be drivers offered by one of the manufacturers Mr. Mowry endorses, and had it tested for material content. The result: it turned out the diaphragm contained less than 14% Beryllium. Our point: it would appear that even the diaphragms Mr. Mowry suggests are made of pure Beryllium are, in fact, alloys of one sort or another.
"

In the past, Mr. Mowry had been inquired about the capability of some software shown on his web site, to make things short, there was never a straight answer when it came to some of the critical aspects. Sort of "danced around" the issues.

[soongsc]

Originally posted by doug20




Who Knows....Hint 30K is not audible at all

Don't know about you, but 20KHz cone breakup sounds terrible to me.

[soongsc]

Originally posted by Robh3606
"During my search for data on beryllium based driver/speaker performance"

Hello Soongsc

In case you missed this we have measurements for the JBL K2 drivers over at Lansing Heritage. The 045be is a horn loaded compression driver and goes out to 40K+ Definately a "bat killer"

Rob

http://www.audioheritage.org/html/pr...ry-measure.htm

Talk about 40KHz, this one goes pretty high as well, and much better sensitivity when equalized.

This is what I consider a bat killer.

[angeloitacare]

Its very disappointing to see where the industry is going, how it has gone down hill for years. How sound quality is all but irrelavent in the marketplace and how its all about marketing and distribution. Its about what consumers want and sound quality isn't big on the list. Its a fashion driven industry where flash and glitz sells (like Be diaphragms.) If I weren't trapped in this industry I would be somewhere else. Its not like it used to be, its very sad.

this might be true for the main stream audio industry, where profit is all what counts. In that case, the consumer is getting, what he wants, and what he deserves. And there are also enough people around, which know it better than TAS, and Stereophile, and stick around at DIY audio, and build their gear by their own, at a fraction of the cost of industry products, and in many cases, with excellent results. We had never so many speakers and raw parts, we could choose from, of all kind and sort of. Knowledge was also never easyer obtainable. Thanks the internet. So this are glory times.