Calista C2-88 Projector Frequency Response

How sensitive an electronic device (mic, amplifier, speaker, etc.) is to various frequencies; often communicated with a graph.

Active Crossover
Uses active devices (transistors, IC's, tubes) and some form of power supply to operate.

Calista C1-9 Home Theater Interface
Any device that allows one unit to work, drive or communicate with another unit when they cannot do so by just feeding each other often because the units are manufactured by different companies.

Instrument Out Direct
Feeding the output of an electric instrument (like an electric guitar) to the recording console or tape recorder without using a microphone.

Calista C3-S Security System Crossover, Active
A rack mountable unit used to separate frequencies leaving the soundboard into high's, mids, and lows with different outputs for each.

Bar
A term meaning the same thing as the term Measure (the grouping of a number of beats in music, most-often four beats).

Balance
1) The relative level of two or more instruments in a mix, or the relative level of audio signals in the channels of a stereo recording. 2) To make the relative levels of audio signals in the channels of a stereo recording even. Bose

High Impedance Mic
A microphone designed to be fed into an amplifier with input impedance greater than 20 k ohms.

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