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Old 19th April 2004, 10:55 PM   #1
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Default World's Ultimate Subwoofer?

I thought I'd post this for the entertainment value. The World's Ultimate Subwoofer?

Regards,
Dan
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Old 20th April 2004, 01:04 AM   #2
Wright is offline Wright  United States
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Glad to see this wasn't another post about the Royal Device concrete horn subwoofer. The one you posted sounds like a brute; I wish they would have included some pictures.
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Old 20th April 2004, 01:30 AM   #3
rotgg is offline rotgg  United States
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yes whats with that no pics
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Old 20th April 2004, 01:40 AM   #4
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Try the website in Australia:
http://www.whise.com.au
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"It is impossible to build a fool proof system; because fools are so ingenious."
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Old 20th April 2004, 01:46 AM   #5
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Click the image to open in full size.
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Old 20th April 2004, 01:46 AM   #6
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its probably just 4 tumult -clones



for 20,000$ i expect that sort of quality.

looks like a bandpass
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Old 20th April 2004, 01:52 AM   #7
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Diameter 390 mm Resonant frequency 40 Hz
Thermal power 300 (continuous RMS) Qt 0.18
Maximum displacement 30 mm BL product (Tm) 25



strange. a 16hz subwoofer using an fs=40hz .

the low qts is not suprising

read the tech part of PAM

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Old 20th April 2004, 03:15 AM   #8
Wright is offline Wright  United States
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I loved this line from the tech paper :

"Further, as the designs utilised the propagating medium (air) the result scaled with changes in ambient conditions also. It was as if nature had intended this approach to be followed."
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Old 20th April 2004, 03:54 AM   #9
Wright is offline Wright  United States
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Has anyone been able to find the patent for this? I tried looking it up but I don't really know what I'm doing in that area. I'd like to learn more about the PAM technology.
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Old 20th April 2004, 08:45 PM   #10
Hans L is offline Hans L  Netherlands
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I think you're in luck. There isn't a patent yet on using air as the propagating medium. Just don't mention that to Amar
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