Brooks QS-70 Frequency Range

The range of frequencies over which an electronic device is useful or over which a sound source will put out substantial energy.

Crossover (Crossover Network)
A set of filters that "split" the audio signal into two or more bands (two or more signals, each of which have only some of the frequencies present).

Brooks M 44 Crosstalk
Leakage of an audio signal into a channel that iris not intended to be in, from an adjacent or nearby channel.

Clock Signal
The signal put out by a circuit that generates steady even pulses or steady codes used for synchronization.

Brooks GT 44 Fader
A control to control the gain of a channel on the console, thereby determining the level of the signal in that channel.

Chamber
1) An Echo Chamber (a room designed with very hard, non-parallel surfaces equipped with a speaker and microphone so that when dry signals from the console are fed to the speaker, the microphone will have a reverberation of these signals that can be mixed in with the dry signals at the console).
2) A program in a delay/reverb effects device that simulates the sound of an Echo Chamber.

Crisp
Describes a good clean high midrange sound. It can be good or bad depending on the look on the face of the guy who said it.

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