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|The big German 34" Audiobahn woofer. This one is to be used in a car! It's not a small boy, it's a big woofer.|
And here it is again ...the Audiobahn 34" woofer. This time with a "little"
|Royal Device - Worlds largest sub-woofer!|
|These car-dudes are really mad about SPL. Here is one unfortunate one trapped inside his big truck with his DIY woofer. I hope his friends don't fire up the system with him inside the car!|
May be the speakers you have been waiting for. "only" 120.000 US$
|Seen at E-bay.....
You are bidding on a parabolic horn speaker system designed by Dr. Bruce Edgar and built by
Moth Audio of Hollywood, CA. in 2000. This is a furniture grade
The really big Wisdom Audio Infinite Grande with amps from Rowland Research, digital frontend from Accuphase and cables for Synergistic Research. No - it's not a small man - it's REALLY big speakers!
US$ 600.000, 5100 lbs and 13' 4" high!
|165 DB Noise generator!
A space shuttle taking off generates 150 dB. It is more than loud. It is outright dangerous. "That large bath of water coming down the side of the main engine when it launches is not for cooling, which is what most people think," explains Rich McKinley, an acoustics expert at Wright-Patterson Air Force Base near Dayton, Ohio. "It is to break up the acoustic waves so they don't damage the shuttle."
Because it is not always practical to launch a space shuttle when you need to create a loud noise--to study airport sound control, for example--Wyle Laboratories, of El Segundo, Calif., has developed a more compact solution, the WAS 3000. It is a powerful 30,000-watt noise source capable of producing up to 165 dB of sound.
Before you begin coveting a WAS 3000 for your home theater, we hasten to point out that technically speaking, the WAS 3000 is a noise generator.
Using a technique called airstream modulation--plus lots of compressed air or nitrogen--it produces pressure fluctuations associated with high-intensity sound. The business end of the device, shown in the photo on the previous page, contains two concentric cylinders, each with rows of modulation slots. Pressure applied from the outside forces gas through the various slots, which change size depending on the magnitude and polarity of an electrical input signal from a high-quality amplifier. This process breaks the airstream into "puffs," which become pressure pulses when they are transmitted into the throat of an acoustic horn that is coupled to the WAS 3000 modulator.
Worlds largest speaker? http://www.kharma.com/
Price 1.000.000 U.S. dollar
This 12 ton system is fully active with 30kW of amplification, equipped with 24 ultrahigh efficiency planar-magnetic HF-units, 24 15-inch LF drivers and 48 6-inch MF drivers. Placed in a specially prepared subterranean listening room of 45,000 cubic feet, it presents sound with incredible dynamics and limitless power, easily reproducing live concert levels at a distance of 10 meters