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leif
11-01-2005, 04:12 AM
If you think your woofers are big, take a look at this:

morbo!
11-01-2005, 04:21 AM
i had a dream like that once!
but woke up with my hand in the wrong place!

morbo!:D

Guido
11-01-2005, 10:26 AM
Dangerous place to sit :D

Titanium Dome
11-01-2005, 11:03 AM
i had a dream like that once!
but woke up with my hand in the wrong place!

morbo!:D


:rotfl: My dream exactly!

anyone familiar with Concept Design?

morbo!
11-01-2005, 10:12 PM
Did you wake up when she pulled out the schematics book too!:)

sonofagun
11-02-2005, 06:11 AM
WHATS THE STORY ON THIS?

jbl
11-02-2005, 08:23 AM
He'll need 2 for stereo!:D

Ron

tomt
11-02-2005, 08:40 AM
this is the mtx-1,000,000

an effort for max sound pressure levels

tested in a masonary structure,

then mounted in a truck,

the trucksides* bending,reduced

the spls



*a new word?

sonofagun
11-03-2005, 10:25 AM
I'm serious - Leif, tell me (at least) details about this thing and what it's for? So far all I see is a picture with no details.

I don't understand why no one else here is asking???

leif
11-03-2005, 11:06 AM
Sorry but I have no information about it. Just found the picture on a norwegian audio discussion forum. And wanted to share the picture of this mega woofer to you all.

But if someone have some info, please come on and put it down for us to read.

toddalin
11-03-2005, 11:24 AM
... and two 18" super tweeters.

tomt
11-03-2005, 11:39 AM
But if someone have some info, please come on and put it down for us to read
`````````````````````````````````````````````````` ``````````````
post#8--

lets just say, that i was on Every Fourm Members ignore list,maybe i could

post any thing, and none would complain or care?

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18 inch s-tweeters!!
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emoticon free...

tomt
11-03-2005, 12:06 PM
http://www.termpro.com/dbdrag/winners/usa/iasca97/images/new-70b.gif
http://www.termpro.com/dbdrag/winners/usa/iasca97/images/new-71b.gif

tomt
10-20-2010, 11:12 AM
copy+paste -


A single 60-inch (1,500 mm) diameter subwoofer driver was designed by Richard Clark and David Navone with the help of Dr. Eugene Patronis of Georgia Institute of Technology (http://en.wikipedia.org/wiki/Georgia_Institute_of_Technology). The driver was intended to break sound pressure level records when mounted in a road vehicle, calculated to be able to achieve more than 180 dBSPL. It was built in 1997, driven by DC motors connected to a rotary crankshaft somewhat like in a piston engine (http://en.wikipedia.org/wiki/Piston_engine). The cone diameter was 54 inches (1,400 mm) and was held in place with a 3-inch (76 mm) surround. With a 6-inch (150 mm) peak-to-peak stroke, it created a one-way air displacement of 6,871 cubic inches (112,600 cm3).[79] (http://en.wikipedia.org/wiki/Thunder_1000000#cite_note-Techzone-78) It was capable of generating 5–20 Hz sine waves at various DC motor speeds—not as a response to audio signal—it could not play music. The driver was mounted in a stepvan (http://en.wikipedia.org/wiki/Stepvan) owned by Tim Maynor but was too powerful for the amount of applied reinforcement and damaged the vehicle.[79] (http://en.wikipedia.org/wiki/Thunder_1000000#cite_note-Techzone-78) MTX's Loyd Ivey (http://en.wikipedia.org/wiki/Loyd_Ivey) helped underwrite the project and the driver was then called the MTX "Thunder 1000000" (one million).[80] (http://en.wikipedia.org/wiki/Thunder_1000000#cite_note-79) Still unfinished, the vehicle was entered in an SPL competition in 1997 at which a complaint was lodged against the computer control of the DC motor. Instead of using the controller, two leads were touched together in the hope that the motor speed was set correctly. The drive shaft broke after one positive stroke which created an interior pressure wave of 162 dB. The Concept Design 60-inch was not shown in public after 1998.[81] (http://en.wikipedia.org/wiki/Thunder_1000000#cite_note-80)


http://en.wikipedia.org/wiki/Thunder_1000000#Concept_Design_60-inch

cradeldorf
11-06-2010, 05:37 PM
I wonder if I can get 2 of those into my Beetle? :D

1audiohack
11-06-2010, 10:38 PM
I was in Chicago last September at the IMTS macine tool show. There is much to see at that show and if you are into how things work, and high performance machines, it's just amazing.

We were looking at linear motion control stuff and there was a display with a magnet driven high speed, rapid acceleration linear accuator. This thing had a steel carriage almost the size of a phone book and could go from zero to zero and cover something like 17 meters in one second. It was crazy to watch, it accelerated from rest so fast it would just leave your eyes behind!

Well I was in the company of a well known speaker and horn designer and I could tell the wheels were turning in his head too, we were thinking the same thing.



with the help of Dr. Eugene Patronis of Georgia Institute of Technology (http://en.wikipedia.org/wiki/Georgia_Institute_of_Technology). This guy is one of my heros, I would love to meet him someday, if only to say thanks!