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Old 7th June 2004, 07:14 PM   #11
7V is offline 7V  United Kingdom
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Quote:
Originally posted by sreten
... For an excellent example of licensing guff over substance visit here :

http://diaural.com
I'm not quite sure of the relevance. Are you saying that no licensed technology can be worthwhile?

As far as I can tell, Diaural are selling some sort of crossover technology. I've never heard it and I don't use the things anyway so it's not of much interest to me. There doesn't seem to be much information on their web site so I can't even offer an intellectual critique.

However, you've obviously listened to speakers designed using this technology. What are their main failings in your view?
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Old 7th June 2004, 07:18 PM   #12
Nisbeth is offline Nisbeth  Denmark
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Another NXT application:

http://www.kefinstanttheatre.com/


/U.
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Old 7th June 2004, 07:24 PM   #13
7V is offline 7V  United Kingdom
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Quote:
Originally posted by Nisbeth
Another NXT application:

http://www.kefinstanttheatre.com/
That's quite clever.
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Old 7th June 2004, 07:33 PM   #14
Nisbeth is offline Nisbeth  Denmark
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Yes it is. Even if the principle is (or so I've heard) straight out of "Acoustics for advanced beginners"


/U.
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Old 7th June 2004, 07:37 PM   #15
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by 7V

I'm not quite sure of the relevance. Are you saying that no licensed technology can be worthwhile?

As far as I can tell, Diaural are selling some sort of crossover technology. I've never heard it and I don't use the things anyway so it's not of much interest to me. There doesn't seem to be much information on their web site so I can't even offer an intellectual critique.

Well there's not much hard information on layered sound either,
thats my point, you can't critique something that barely described.

sreten.
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Old 7th June 2004, 07:45 PM   #16
7V is offline 7V  United Kingdom
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Quote:
Originally posted by sreten
Well there's not much hard information on layered sound either,
thats my point, you can't critique something that barely described.
You're right. That's why if it interests you, you have to test it for yourself, then make your critique.
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Old 7th June 2004, 08:39 PM   #17
tvi is offline tvi  Australia
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Sound reproduction using both conventional loudspeakers and bending-wave loudspeakers
Patent number: GB2387500
Publication date: 2003-10-15
Inventor: KATZ SHELLEY (GB)

Abstract of GB2387500
The sound reproduction method and apparatus utilises both distributed mode and pistonic loudspeakers which are simultaneously driven over frequency ranges which at least partially overlap, for enhancing the spaciousness of the sound produced. The disclosure includes monophonic, stereophonic and multi channel sound reproduction systems and electronic musical instruments such as digital pianos.


The patent is available Here


hope this helps
James
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Old 7th June 2004, 09:02 PM   #18
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I find the NXT speaker quite interresting. I belive that German Intertechnik ( hope i spelled it right ) sells exciters for diy purpouse ( seen it in their catalog ). Could be fun to play with.

Im going to get a test of this tecnique myself when my "cardboard speakers" arrive in the mail. Bought them dirt cheap and i guess their main purpouse is for computer/advertisment or something like that.

http://www.nxtsound.com/soundpax/release.php

Regards // Mattias S
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Old 7th June 2004, 10:13 PM   #19
johnnyx is offline johnnyx  United Kingdom
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I read that if you buy a license from NXT, you get CAD software with it so that you can design speakers. It's probably difficult to design a flat(ish) response speaker without it, finite element maths & other such stuff. Theile & Small won't help you.

I have some TDK NXT computer speakers, and they sound good for the price and compared to other computer speakers. They aren't as good as conventional ones though, which becomes apparent when you change from one to the other.
One thing that I find troublesome is the dipole nature of the device, position is very important, so they can sound very good in one place, but confused in another.
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Old 7th June 2004, 11:56 PM   #20
7V is offline 7V  United Kingdom
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I would be interested to know if anyone has used their NXT panels in parallel or series with conventional moving coil speakers.
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