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Old 16th September 2006, 02:48 PM   #1
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Default Pulsating spheres

Interesting. I wonder how good they are in the real world?

http://www.reghardware.co.uk/2006/09...here_speakers/
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Old 16th September 2006, 03:22 PM   #2
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I bet that they don't sound so great. Each "sphere" is 10cm in diameter, and has 11(!) drivers in it. So these would have to be probably very tiny drivers like those found in laptops (no bass at all). It's typical of JVC, or any other large consumer electronics company, to take a good idea and trash it.

If I used this idea, I would use something like Seas 17cm coax drivers in a much larger "sphere". That would be much nicer.
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Old 16th September 2006, 04:53 PM   #3
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Hi, Kris Metaverso of US enclosure used to make some quitar speakers that look similar. Here is a URl for the site
Go down the pages to see the spheres with multidrivers
A University was the client initially I believe

Regards

AnthonyPT

http://www.usenclosure.com/TESTIMONI...timonials.html

http://www.usenclosure.com/IMAGE%20G...regallery1.htm
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Old 16th September 2006, 05:15 PM   #4
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HI

Here is another site o these type of speakers

http://www.music.columbia.edu/~dan/a...niversities%22

Big long URL

If it fails try Googling
"Guitar speakers Columbia University / Princeton Universities"

Enjoy

AnthonyPT
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Old 16th September 2006, 05:44 PM   #5
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I must admit, dodecahedral speakers rank fairly high on the cool scale for basic shapes, but they're nothing new in the audio world.

Here's a picture of my Design Acoustics D-12s:
Click the image to open in full size.

Those were built in 1973, hence the groovy blue. They're a fair bit larger than the other units mentioned being 2' in diameter. The solution George Sioles (the designer) took to solve the bass problem was to build these as three-ways, with a 10" long-throw CTS woofer (units were specially chosen for a Fs of 10Hz) pointing down in a ported arrangement.

With dodecahedrons, as with most omnidirectionals, you end up listening to the room, which can be good or bad.

- JP
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Old 16th September 2006, 08:14 PM   #6
kvholio is offline kvholio  Netherlands
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Not a pulsating sphere in the true sense of the word,
but a marvellous piece of engineering:
http://www.cabasse.com/english/acoustique/scs.php

regards,

Klaas
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Old 17th September 2006, 02:44 AM   #7
Ron E is offline Ron E  United States
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Quote:
Originally posted by kvholio
Not a pulsating sphere in the true sense of the word,
but a marvellous piece of engineering:
What's marvellous about it? - nothing I can see.
Good polar response is the hallmark of any coaxial, and people have been making coaxials since at least the 1930's. Even the concentric ring thing has been done before, numerous times.
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Old 17th September 2006, 05:42 AM   #8
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Quote:
Originally posted by Ron E


What's marvellous about it? - nothing I can see.
Nothing I can see either but very likely something we could hear... be it just because of the manufacturer's reputation for uncompromising designs.
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Old 17th September 2006, 09:01 AM   #9
el`Ol is offline el`Ol  Germany
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I find it an econonomically very reasonable decision to develop something like that, given the hype for Grundig Audiorama speakers. But I find the old Audioramas were more beautyful.
http://search.ebay.de/audiorama
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Old 17th September 2006, 05:30 PM   #10
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Pulsating Sphere?

Dr. Amar G. Bose would be impressed.
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