Brooks GS 15 Capacitance

That property of a capacitor which determines how much charge can be stored in it for a given potential difference between its terminals, measured in farads, by the ratio of the charge stored to the potential difference.

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

Brooks SS 81 Bass Roll Off
An electrical network built into some microphones to reduce the amount of output at bass frequencies when close-micing.

Fade
1) A gradual reduction of the level of the audio signal.
2) A gradual change of level from one pre-set level to another.

Brooks QS 70 Critical Distance
The point a distance away from the sound source where the direct sound and the reverberant sound are equal in volume.

Far Field
The area from 3 feet away from the sound source up to the critical distance.

Hybrid
A product created by the marriage of two different technologies. Meant here as the combination of a dynamic woofer with an electrostatic transducer.

Aux Send
Short for the term Auxiliary Send (a control to adjust the level of the signal sent from the console input channel to the auxiliary equipment through the aux buss.