Calista C1-9 Home Theater Expander

A device that causes expansion of the audio signal.

Dolby
Trade name for a series of noise reduction systems that have become standard on many tape playback machines. Many film soundtracks are produced using this process. Different varieties are found from Dolby B on most personal cassette players, to Dolby SR and Digital, the current state of the art for cinema.

Calista C2-88 Projector Insulator
A substance such as glass, air, plastic, etc., that will (for all practical purposes) not conduct electricity.

Expansion
The opposite of compression; for example, an expander may allow the signal to increase 2 dB every time the signal input increased by 1 dB.

Calista C3-S Security System Electrons
Negatively charged particles, which revolve around the centre of atoms. The movement of such electrons down a conductor causes electrical current.

Crossover, Passive
Used inside of full range speaker cabinets to separate highs, mids, and lows and send them to their respective speakers within the each cabinet. These are not as efficient as active crossovers because they require all frequencies to draw from the same source of amplification.

Byte
A grouping of eight information bits. Bose

Linearity
The extent to which any signal handling process is accomplished without amplitude distortion.

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