Brooks BA 71 Compact Disc CD

A small optical disk with digital audio recorded on it.

Effects
Electronic boxes (usually rack mounted) added to a PA system to subtly change and enhance the signals going through it. Examples include; Reverb, Delay, Compressor, Chorus.

Brooks Speakers Error Message
A prompt on a computer screen telling the operator that an error has occurred.

Full
A quality of the sound of having all frequencies present, especially the low frequencies.

Brooks M 44 Golden Section
A ratio of height to width to length of a room to achieve "good acoustics" and first recommended by the ancient Greeks. The ratio is approximately the width 1.6 times the height and the length 2.6 times the height

Cue Send Control
A control that will adjust the amount of signal sent to a cue buss from a console channel.

Buss (Bus)
A wire carrying signals to some place, usually fed from several sources.

Impedance
1) A term for the electrical resistance found in a/c circuits. Affects the ability of a cable to transmit low level (e.g. sound) signals over a long distance. Measured in Ohms. Speakers are rated according to power handling capabilities (Watts, W) and impedance (Ohms).
2) The total opposition offered by an electric circuit to the flow of an alternating current of a single frequency. It is a combination of resistance and reactance and is measured in ohms. Remember that a speaker's impedance changes with frequency, it is not a constant value.
3) The opposition to alternating current.