posted
I heard about a concept called transmision line. It is something that uses a full wave lenght and a 1/4 wavelenght. Does anybody knows how it works? Any info on the specifics?
------------------ Carlos Alexis DDS of Puerto Rico
Posts: 246 | From: Bayamon PR USA | Registered: May 1999
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I've heard of it, but I must say that I am ignorant of its application in enclosures.
However, if you've ever seen or heard a Didjgeridoo, you know that a tube, resonated by a diapraghm on one end can make the production of ambient sound up to 6 db more efficient at a *slightly* lower frequency..
I DO need to look into it a lot more though
ShadowStar
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Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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posted
Yes, a T-line has a tapered port that has a length equal to the wavelength of the tuning frequency. Much more popular is the modified T-line which has a line length equal to 1/2 or even 1/4 of the wavelength. This is accomplished by careful usage of a resistance medium (stuffing) in the line. I could go on at length (I love T-lines ) but, as mentioned, The Cookbook has lots of info. Wayne even has a bit of software on here under the main page. Suffice it to say that a T'line is an awesome enclosure, is larger than most, and is a real bugger to get tuned right in a car!
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And that's the bottom line, cuz: LORD DUKK SAYS SO!
The Big Show The Dukk says: Know your bass: PORT your damn box!! Have HoleSaw, Will Travel!
posted
T-lines are difficult to build correctly, but, when done correctly, sound absolutely amazing. Listen to a pair of definative technology home monitors, they are a wonderful sounding piece.
------------------ If it dont fit, force it... if it breaks, it needed to be replaced anyway... members.tripod.com/Audiophyle
Posts: 3120 | From: nowhere | Registered: May 1999
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