Brooks GT 845 Corner Frequency

Same as Cut-Off Frequency (the highest or lowest frequency in the pass band of a filter). (NOUN)

Ground Lifter
An adapter that takes a three prong power cord and plugs into a two prong outlet, used to disconnect the third (ground) pin of the power outlet. WARNING: It can be VERY DANGEROUS to have no ground connection to the case by using a ground lifter and not grounding the unit by other means.

Brooks XB 33 Guitar Controller
An electric guitar or device played like an electric guitar that puts out MIDI signals that can be used to control synthesizers and sound modules.

Key
The control of a dynamics processing device by an external audio signal.

Brooks Cinema XS - 45 Byte
A grouping of eight information bits.

Level
Sets output volume of individual PA input channels. Usually positioned as sliders at the bottom of the soundboard.

Cable, TRS
A less common balanced cable that has 3 different contacts on its 1/4 inch connectors. Most headphone jacks are a good example of a TRS (Tip-Ring-Sleeve) connector. These are sometimes used instead of the more common XLR connection.

Flat
1) Lower in musical pitch.
2) A slang term used to describe the sensitivity to frequency of a microphone, amplifier, etc., as being even at all frequencies, usually within 2 dB.
3) Refers to the frequencies on the EQ when they are arranged in centred neutral positions.