Brooks Cinema xm 808 Echo Send

The output of a console used to send a signal to an echo chamber or delay effects device.

Coax
Two-conductor cable consisting of one conductor surrounded by a shield.

Brooks RM 80 Crossover
1) A route leading from one side of the stage to the other, out of the audiences view.
2) An electronic filter in a sound system that routes sound of the correct frequency to the correct part of the speaker system. Different speakers handle high frequencies (tweeters) and low frequencies (woofers). Sometimes known as a crossover network. An active crossover splits the signal from the mixing desk into high, mid and low frequencies which are then sent to three separate amplifiers.
3) An electrical circuit that divides a full bandwidth signal into the desired frequency bands for the loudspeaker components.

Headphones
Devices that can be worn on the head with small speakers that fit over the ears (or sometimes into the ears).

Brooks Cinema XR 607 LFO
Low-Frequency Oscillator (an oscillator that puts out an AC signal between .1 Hz and 10Hz used for a control signal).

Auxiliary Output or Send
An additional output from a sound desk that can be used for foldback or monitoring without tying up the main outputs. Each input channel will have a path to the Aux buss. Also used for feeding a signal to an effects processor. See Auxiliary Return.

Face
The front or body of the guitar.

Foldback
A European term for the signal sent to the stage monitors in a live performance.