Hi!
I would like ask the experts about closed/sealed box design technics. What is the most prefered way:
-Butterworth (Qtc: 0.707)
-Bessel (Qtc: 0.577)
-Critically damped (Qtc:0.5)
What are the advantages of the closed ended TML boxes? (Like the Nautilus?)
What is the "best" closed box laudspeaker on Earth?
Nowadays I can see most of time only vented designs. Why?
Greets:
Tyimo
I would like ask the experts about closed/sealed box design technics. What is the most prefered way:
-Butterworth (Qtc: 0.707)
-Bessel (Qtc: 0.577)
-Critically damped (Qtc:0.5)
What are the advantages of the closed ended TML boxes? (Like the Nautilus?)
What is the "best" closed box laudspeaker on Earth?
Nowadays I can see most of time only vented designs. Why?
Greets:
Tyimo
There is no best design, it's all a matter of individual taste.
Lower Q sealed gives better transient response and group delay/phase at the expense of larger box and earlier roll-off.
Vented is popular because it gets lower cut-off and better efficiency, at the expense of transient response and group delay/phase. Box size is larger than closed, but not terribly so.
Different applications (sub, only main speaker, satellite etc.) require different approaches.
Lower Q sealed gives better transient response and group delay/phase at the expense of larger box and earlier roll-off.
Vented is popular because it gets lower cut-off and better efficiency, at the expense of transient response and group delay/phase. Box size is larger than closed, but not terribly so.
Different applications (sub, only main speaker, satellite etc.) require different approaches.
A test done on several Q points;
http://www.geocities.com/kreskovs/Box-Q.html
Watch out for room gain at a Q of 1.0....
http://www.geocities.com/kreskovs/Box-Q.html
Watch out for room gain at a Q of 1.0....
RJ said:A test done on several Q points;
http://www.geocities.com/kreskovs/Box-Q.html
Watch out for room gain at a Q of 1.0....
Hey that is rather interesting
Is there any rule of thumbs how to design a good closed end TML speaker?
I'm guessing the L in TML stands for Transmission Line.
Here's a site that can explain it.
http://www.t-linespeakers.org/design/classic.html
I'm guessing the L in TML stands for Transmission Line.
Here's a site that can explain it.
http://www.t-linespeakers.org/design/classic.html
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