What is MLTL?
Basically, an MLTL is a quarter-wave transmission line enclosure with a port. King, Mass Loaded Transmission Line (MLTL) speakers are now relatively straight-forword to design for the DIY audio enthusiast.
How do you calculate transmission line speakers?
Take your speaker and find out what is the resonant frequency in free air (Fs). Find the corresponding wavelength for that F. Find the length of the transmission line by dividing that wavelength by 4 (the quarter wavelength).
How do transmission line speakers work?
Inside a transmission line (TL) loudspeaker is a (usually folded) pathway into which the sound is directed. The transmission line acts as an acoustic waveguide, and the padding both reduces reflection and resonance, and also slows the speed of sound within the cabinet to allow for better tuning.
Is vented the same as ported?
vented and ported are the same thing. if you mean slot-vented then say as much. even then, slot-vented and round ports serve the same mechanical purpose. It’s just a matter of box design, tuning frequency, etc.
What is a tapped horn?
A broad generalization would be that the tapped horn is a configuration where the driver radiates energy into the horns throat, a horn which expands along it’s length, the tap is where the other side of the same driver’s cone is radiating into a portion of the horn typically near the mouth/exit.
What does mltl stand for in speaker category?
However, rather than engaging in a lengthy discussion on naming conventions, I will use the term MLTL to describe a ported quarter-wave enclosure. Thanks to a collection of MathCad programs developed by Martin J. King, Mass Loaded Transmission Line (MLTL) speakers are now relatively straight-forword to design for the DIY audio enthusiast.
What is the effective area of a mltl?
The effective area, Sd, of 88.25 cm² converts to a diameter of 4.2″. For MLTLs, there are three fundamental choices: Tapered with narrow top, straight pipe, or tapered with wide top. Source: Bob Brines. With the MathCad programs it is trivial to try the different types of enclosures.
Which is mass loaded transmission line ( mltl ) speakers?
There are several types of transmission line enclosures and one of the more popular ones is the mass loaded transmission line (MLTL). Basically, an MLTL is a quarter-wave transmission line enclosure with a port. Now, some may argue that this is a bass reflex enclosure – and the line is indeed a bit blurry.
What is a quarter wave transmission line ( mltl )?
Basically, an MLTL is a quarter-wave transmission line enclosure with a port. Now, some may argue that this is a bass reflex enclosure – and the line is indeed a bit blurry. However, rather than engaging in a lengthy discussion on naming conventions, I will use the term MLTL to describe a ported quarter-wave enclosure.