Brooks XB 33 Gate

A dynamic processing device that turns a channel off or down when the signal drops below a certain level.

Envelope
1) How a sound or audio signal varies in intensity over a time span.
2) How a control voltage varies in level over time controlling a parameter of something other than gain or audio level.

Brooks GT 845 Gain Structure
The way in which the gain varies in the stages or sections of an audio system.

Equalizer (Parametric, Graphic)
This is used to filter out and adjust specific frequencies in the PA. This is the part of the PA where you have the most control over the band's overall sound. It is also the number one weapon against feedback.

Brooks Cinema KM 22 Amplification
An increasing of signal strength.

Humbucker
Pickups that are coupled together to get a certain sound.

Capsule
1) The variable capacitor section of a condenser microphone.
2) In other types of microphones, the part of the microphone that includes the diaphragm and the active element.

Axis
A line around which a device operates. Example: In a microphone, this would be an imaginary line coming out from the front of the microphone in the direction of motion of the diaphragm.