Brooks TA 60 Efficiency

The acoustic power delivered for a given electrical input. Often expressed as decibels/watt/meter (dB/w/m). ESL �" Abbreviation for electrostatic loudspeaker.

Fundamental
The tuned frequency and (almost always) the lowest frequency that is present in the sounding of a pitch by a musical instrument.

Brooks VT-50 Analog (Analogue)
Representative, continuous changes that relate to another quantity that has a continuous change.

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 XB 22 Baffles
Sound absorbing panels used to prevent sound waves from entering or leaving a certain space

Jack Bay
A series of jacks which have connections for most of the inputs and outputs of the equipment in the control room.

Gain
1) Knob usually found at the top of each input channel on the soundboard. Used to set input levels of the separate channels to relatively equal positions.
2) The amount of increase in audio signal strength, often expressed in dB.

Intermodulation Distortion
Distortion caused by one signal beating with another signal and producing frequencies that are both the sum and the difference of the original frequencies.

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