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#BUILD THE BEST SPEAKER ENCLOSURE DESIGN DRIVER#
The force serves a valuable function, however - it acts like a spring to keep the driver in the right position. These enclosures are less efficient than other designs because the amplifier has to boost the electrical signal to overcome the force of air pressure. The air will always move to equalize pressure levels, so the driver is constantly being pushed toward its "resting" state - the position at which internal and external air pressure are the same.
#BUILD THE BEST SPEAKER ENCLOSURE DESIGN DRIVERS#
Both movements create pressure differences between the air inside the box and the air outside the box. Designing loudspeaker drivers is another thing, but picking 2-3 drivers and making a suitable cabinet and crossover is basically a matter of handling fairly. Of course, since no air can escape, the internal air pressure is constantly changing - when the driver moves in, the pressure is increased and when the driver moves out, it is decreased.
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This means the forward wave travels outward into the room, while the backward wave travels only into the box. These enclosures are completely sealed, so no air can escape. The most common type of enclosure is the sealed enclosure, also called acoustic suspension enclosure.
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Different enclosure types have different ways of handling these "backward" waves. But, since the diaphragm is moving back and forth, it's actually producing sound waves behind the cone as well. When we looked at speaker drivers, we focused on how the vibrating diaphragm emitted sound waves in front of the cone. If you simply placed a driver on a table, the table would vibrate so much it would drown out a lot of the speaker's sound.Īdditionally, the speaker enclosure affects how sound is produced. You should use minimum 3/4' MDF which is sold in 4x8 sheets. See the MDF Board FAQ for more information on obtaining and using MDF, along with safety issues. Enclosures are usually built with heavy wood or another solid material that will effectively absorb the driver's vibration. The speaker box should be constructed from Medium Density Fiberboard (MDF). Everything's in one unit and the drivers are kept in the right position, so they work together to produce the best sound. On their most basic level, they make it much easier to set up the speakers. These enclosures serve a number of functions. In most loudspeaker systems, the drivers and the crossover are housed in some sort of speaker enclosure. In a sealed speaker setup, the driver diaphragm compresses air in the enclosure when it moves in and rarefies air when it moves out.