Some common methods for creating the front cavity of a speaker enclosure are to use a screen or to create round or slotted holes in a solid plate. The front cavity of the enclosure serves to provide physical protection for the speaker, but should also be designed to minimize the attenuation of the desired sound. Example diagram of a speaker Speaker Enclosures

Unfortunately, the front and rear pressure waves are out of phase and thus can partially or completely cancel each other out and reduce the sound level. These air pressure waves radiate similarly well from both the front and the rear of the speaker. The diaphragm moves due to the movement of the coil and thus air pressure waves are created which are detected as sound. Applying an electrical signal to this coil of wire causes it to move in the magnetic field. A coil of wire is attached to the diaphragm and suspended between the poles of a permanent magnet.

Speakers 101Ī speaker consists of a diaphragm suspended in a rigid frame such that the diaphragm can freely move forward and backward. Enclosures designed with a few simple guidelines will meet the needs of most applications.

Enclosures for mini and micro speakers are similar in purpose to those for larger speakers to protect the speaker and to enhance the audio volume.

Speaker box enclosure calculator