Brooks Hi Fi reviews Level

The amount of signal strength; the amplitude, especially the average amplitude.

Generating Element
The portion of the microphone that actually converts the movement of the diaphragm into electrical current or voltage changes.

Brooks RM 909 Lift
1) To boost gain of audio at a particular band of frequencies with an equalizer.
2) An elevation device in the star trek series of TV programs.

Electrons
Negatively charged particles, which revolve around the centre of atoms. The movement of such electrons down a conductor causes electrical current.

Brooks HI FI projectors FOH (Front of House)
Refers to the speakers that face toward the audience. Also called the "main" speakers.

Input Impedance
The opposition to current flow by the first circuits of a device.

Automatic Gain Control (Automatic Volume Control)
A compressor with a very long release time used to keep the volume of the audio very constant.

Line In (Input, return)
Where a signal enters the board or component.