Calista C3-S Security System Electret Mic

A condenser microphone where the capacitor plates are given a charge during manufacture which they retain, therefore requiring no external power supply.

Foot Switch
A switch placed on the floor and pressed by a musician to do various functions.

Calista C2-88 Projector In-Line Console
A console with modules that have controls for all console sections in one long strip.

Hypercardioid Pattern
A microphone pick up sensitivity pattern where the least sensitive pick up point is more than 90 degrees but less than 150 degrees off axis (usually 120 degrees).

Calista C1-9 Home Theater Diffraction
The breaking up of a sound wave caused by some type of mechanical interference such as a cabinet edge, grill frame, or other similar object.

Head
1) In tape recording, the transducer (energy converter) that changes the audio energy from electrical energy to magnetic energy and back; also the devices that apply magnetism to the recording tape for other purposes such as in the erase head.
2) The part of a device that immediately includes the transducer to change sound or audio signals from one energy form to another.

Delay
Outboard sound equipment that can momentarily stores a signal being sent to part of a P.A. system so that delayed reinforced sound reaches the audience at the same time as live sound from the stage. Calista Reviews

Dry
Describes a sound coming from the PA with no effects on it.

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