The differences among closed acoustics, backward acoustics and labyrinth acoustics are: different box structures, different vibration frequencies and different uses.

1, the box structure is different.

Enclosed speaker: The speaker unit is installed in a completely sealed box.

Inverted speaker: It is a speaker with inverted holes (slots) on the speaker panel.

Labyrinth speaker: The sound duct of labyrinth speaker is mostly labyrinth, also called transmission line or labyrinth speaker. There is a sound pipe made of sound-absorbing wall behind the speaker, and its length is 1/4 or 1/8 of the required low-frequency sound wavelength.

2, * * vibration frequency is different.

Enclosed sound box: The existence of enclosed box increases the rigidity of the sound box's moving mass to generate * * * vibration, and makes the lowest * * * vibration frequency of the sound box rise.

Inverted speaker: Ideally, the lower limit of the low-frequency playback frequency can be as much as 20% lower than the vibration frequency of the speaker.

Labyrinth speaker: It has slight damping and tuning functions, increases the sound output of the speaker near or below the vibration frequency of * * *, and reduces the stroke while enhancing the bass output.

3. Different uses

Use:

Closed speaker: widely used in stage feedback, it is an essential and important equipment for stage performance.

Backward speaker: widely used. Not only the stage and studio are the main speakers, but also the main speakers of general home theaters are backward speakers.

Labyrinth speaker: mainly used in discos, discos and other places. Labyrinth speakers for home use are small in size, but the internal structure and principle are the same.

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