J - Lighting, Audio, Staging & Video

Amp Racks - An amp rack is any furniture, fixture, or case where multiple amplifiers are mounted in slots or grooves, generally used in touring systems because they are easy to transport.

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Communications - Communication gear is essentially used to relay information to different individuals or teams during a show or performance to insure everything, including audio, lighting and staging are timed correct. Used Audio. ly and functioning properly and safely. . Used Audio. ...

Analog to Digital Converter - In electronics, an analog-to-digital converter (abbreviated ADC, A/D, or A to D) is a device that converts continuous signals to discrete digital numbers. Typically, an ADC converts a voltage to a di. Used Audio. gital number. The digital to analog converter or DAC performs the reverse operation. . Used Audio.

Headsets and Beltpacks - Headsets are simply headphones with an attached mic, usually a noise canceling condenser mic, used for communicating with other crew members during a show or production. Beltpacks provide power to the. Used Audio. headset and allow it to be used remotely. . Used Audio. ...

Polarity - The polarity of an object is, in general, its physical alignment. The term is often used to describe the positive and negative ends of batteries and magnets.

In cell biology, polarity ref. Used Audio. ers to cells not being point-symmetrical in their spatial organization. This is particularly evident for cells organized in single cell layers that separate organs or subcompartments in . Used Audio. organisms.

In chemistry, molecular polarity refers to the dipole-dipole intermolecular forces between the slightly positive end of one molecule to the negative end of another or the same molecule. Mole...