• Quick note - the problem with Youtube videos not embedding on the forum appears to have been fixed, thanks to ZiprHead. If you do still see problems let me know.

Golden Audio correspondance.

Ducky

Unregistered
D
Joined
Jun 11, 2005
Messages
11,933
I couldn't help myself. I sent the following email to Golden Audio, makers of such fine products as the GSIC chip, and the Magic Ring.

Dear Sir/Madame,

I am writing for information on your Ultra Tweeters. Per the following website I was given this description:

http://www.dhcones.com/otheracc.html

Quote:
Description/Theory: These remarkable speakers, sold in pairs, operate at extremely high frequencies -- much higher than the audio band - actually in the microwave band, above 1 Gigahertz (GHz). The Ultra Tweeters are connected to the output terminals of existing speakers with speaker cables - preferably light, flexible ones - since the Ultra Tweeters themselves are quite light. Ultra Tweeter principle of operation is very unconventional. They don't generate sound in the audio band, or even in the 20-100 KHz band like super-tweeters, but function in the Gigahertz frequency band (normally used for satellite and microwave communications). Ultra Tweeters organize and improve the energy flow in signal conductors as well as the internal wirings of speaker drivers, making the audio system perform more efficiently and synergistically.

With Ultra Tweeters installed, the audio system produces a wider frequency bandwidth, lower noise floor, more "air," and lower distortion. Ultra Tweeters are compatible with any speakers and, because they operate at such extremely high frequencies, one does not have to worry about beaming, time alignment of drivers or matching the acoustic output of the existing speakers.

Operation: Ultra Tweeters may be placed on top of the existing speaker cabinets. They may also be placed in any other convenient location since they do not behave like conventional super-tweeters - i.e., they do not operate in the audio band, or in the 20-100 KHz bands of high-performance super-tweeters. In fact, Ultra Tweeters will even improve the performance of systems that include high-performance super-tweeters.

Retail Price: $400/pr

End Quote.

Please explain to me what signal they are emitting, since I know of no audio recording that even has frequencies in the L Band sold commercially in any format.

Also please explain to me any negative effects this may have on older pacemakers, since you are operating in the same frequency band as a microwave oven and I would like to keep my grandfather safe from potential pacemaker malfunction.

L band (20-cm radar long-band) is a portion of the microwave band of the electromagnetic spectrum ranging roughly from 0.39 to 1.55 GHz. It is used by some communications satellites, and by terrestrial Eureka 147 digital audio broadcasting (DAB). In the United States, the L band is held by the military for telemetry, thereby forcing digital radio to in-band on-channel (IBOC) solutions.

Do you have the military's approval for use of this wavelength? Will this product possibly affect the reception of my Eureka 147 reciever?

If they can be placed in any convenient place in the room because there is no worry of them behaving like conventional super-tweeters - i.e., they do not operate in the audio band, or in the 20-100 KHz bands of high-performance super-tweeters, why would they need to be sold in pairs?



I await your response.
Click to expand...


I'll post any response I get here.
 
In the United States, the L band is held by the military for telemetry, thereby forcing digital radio to in-band on-channel (IBOC) solutions.

Do you have the military's approval for use of this wavelength? Will this product possibly affect the reception of my Eureka 147 reciever?
Click to expand...
:re: I wonder if the Department of Homeland Security has something to say about that.
 
BronzeDog said:
:re: I wonder if the Department of Homeland Security has something to say about that.
Click to expand...


Good question, should I CC them also?:D
 
BronzeDog said:
Of course! They could be a threat to our national security! ;)
Click to expand...

That would be a kick, eh? If they were shut down for using military bands? Guess I didn't think to alert anyone in the military about it.

Who would I contact?
 
Actually I'm interested to know if they donate to charity.
If they do, I'll at least able to identify them with the "nobility" of Robin Hood.

I actually see a win-win for the rich and poor.
On the one hand, selling things that is marginally effective, at a high price, to the rich perfectionist with an expensive taste.
On the other hand, pass some benefit to those poorer people.

I hope their management have the integrity to do the right thing when they realize they are threading the wrong path.


They touted Premier cables that are "hand made and individually tuned".

http://www.dhcones.com/cables.html
Priced at $600 for 5 feet. I thought the margin must be fat.
It came across my mind, whether I can work from home for them, making "Premier Series Cables", and get a cut. :) .

Edited to add:
On second look, the $6000/8feet Preimer Speaker Cable sounds more profitable.
 
Jyera said:
Actually I'm interested to know if they donate to charity.
If they do, I'll at least able to identify them with the "nobility" of Robin Hood.

I actually see a win-win for the rich and poor.
On the one hand, selling things that is marginally effective, at a high price, to the rich perfectionist with an expensive taste.
On the other hand, pass some benefit to those poorer people.

I hope their management have the integrity to do the right thing when they realize they are threading the wrong path.


They touted Premier cables that are "hand made and individually tuned".

http://www.dhcones.com/cables.html
Priced at $600 for 5 feet. I thought the margin must be fat.
It came across my mind, whether I can work from home for them, making "Premier Series Cables", and get a cut. :) .
Click to expand...

Somehow I doubt they're donating to charity. Maybe to their own personal Ferrari fund, though...
 
fowlsound said:
Somehow I doubt they're donating to charity. Maybe to their own personal Ferrari fund, though...
Click to expand...
And even if they did, I'm one of those people who believe that the ends seldom justify the means.
 
BronzeDog said:
And even if they did, I'm one of those people who believe that the ends seldom justify the means.
Click to expand...

I agree.

Now, who to send a copy of this letter to first, the FTC or Homeland Security? Or Pentagon?
 
Jyera said:
*snip*

I actually see a win-win for the rich and poor.
On the one hand, selling things that is marginally effective, at a high price, to the rich perfectionist with an expensive taste.
On the other hand, pass some benefit to those poorer people.

*snip*
Click to expand...
That would be true if the things they sold were indeed marginally effective. But they are not. They are obvious scams (obvious to anybody with even marginal technical insight, that is). And they are deliberate scams. Considering the lenght they go to in fabricating technobabble explanations, it is impossible to assume they are somehow in good faith.

They are simply swindlers. The only winners are themselves.

Hans
 
Good grief- people still use cables? My speakers are connected using finest Patagonian Groundsloth entrails, lovingly killed, hand washed in mountain streams and filled with the best Spanish mercury...
 
Soapy Sam said:
Good grief- people still use cables? My speakers are connected using finest Patagonian Groundsloth entrails, lovingly killed, hand washed in mountain streams and filled with the best Spanish mercury...
Click to expand...

:D


Bet they sound awesome!
 
Something just occured to me.

My full name, and the name of my production company (meager as it is) was at the end of that correspondance. I omitted it here.

I am not afraid of reprisal, but I am wondering if my last name threw them off.

It is very similar to a certain pregnant pop star's dancer husband's last name. Not spelled exactly the same, but close enough...

wonder if they think Britney Spear's in laws are sending them emails?

And no, I am not related to Kevin Federline...
 
Soapy Sam said:
Good grief- people still use cables? My speakers are connected using finest Patagonian Groundsloth entrails, lovingly killed, hand washed in mountain streams and filled with the best Spanish mercury...
Click to expand...
:)
That would be Exotic, Organic, Romantic, Natural and Unique.
Very smart of you to use QuickSilver, I think it'll makes the signal travels quicker. Definitely improve soundstage for all Genre.
(i) Slow music, Low Frequency (Sloth).
(ii) Fast music, High Frequency (Quicksilver)
(iii) Romantic music (lovingly)
(iv) ...etc...
Brillant! Simply Brillant!
 
Ultra Tweeter principle of operation is very unconventional. They don't generate sound in the audio band, or even in the 20-100 KHz band like super-tweeters, but function in the Gigahertz frequency band (normally used for satellite and microwave communications).
Click to expand...
Is somebody confusing sound waves with electromagnetic waves, by any chance?

And atmospheric absorption of sound waves increases with increasing frequency: Measurements of atmospheric attenuation at ultrasonic frequencies and the significance for echolocation by bats.

I suspect that GHz sound waves wouldn't get very far...
 
That increasing absorption with frequency is literally textbook stuff. If you read Davis & Davis' Sound System Engineering, 2nd edition you'll find a discussion of it as a factor which sound reinforcement system designers have to contend with where the distances from loudspeaker to listener are long enough. It's the reason that you'll see "delay towers" out in the audience at big enough concerts.

I guess these woos either have never done any of the basic reading on the subject, or else are deliberately ignoring something which is well-known to anyone who has. :mad:
 
ktesibios said:
That increasing absorption with frequency is literally textbook stuff. If you read Davis & Davis' Sound System Engineering, 2nd edition you'll find a discussion of it as a factor which sound reinforcement system designers have to contend with where the distances from loudspeaker to listener are long enough. It's the reason that you'll see "delay towers" out in the audience at big enough concerts.

I guess these woos either have never done any of the basic reading on the subject, or else are deliberately ignoring something which is well-known to anyone who has. :mad:
Click to expand...

That's the whole point, I guess: at the core this HAS to be fraud. I don't accept someone would "engineer" something and not know how it works.
 
You must log in or register to reply here.

Back
Top Bottom