Soco (Socoplex)

A Soco or Socapex cable refers to a cable that has Socapex connectors on its ends.

In lighting, Socapex are used for power cables. The connector is normally attached to a multi-cored power cable that can carry 6 channels of power.

Socapex connectors are also used for audio multi-cores.

Tags: Lighting, Sound


Abbreviation for Audio.

Tags: Sound

Tri Nut

The bolt that tightens a G-Clamp to a bar. Often called Tri Nut because many have a triangular plastic grip.

Tri Nut

Tags: Lighting, Sound, Stage

Highs (Top End)

The highest part of the audible audio frequency spectrum.

Tags: Sound


The frequencies at the middle of the audible audio frequency spectrum.

Tags: Sound

Active Speaker

A speaker that has a built-in amplifier. The back of an active speaker uses XLR cables. It also requires IEC cables for power.

Back of an active speaker

Tags: Sound

Passive Speaker

A speaker that requires an external amplifier in order to produce sound.

Back of a passive speaker. You can see the 2 ports for the Speakon connectors.

Tags: Sound


The part of a sound system that produces the actual sound that a person hears. The sound is produced by the vibration of a paper or synthetic cone by an electrical voltage in a wire coil.

Tags: Sound