Brooks TA 60 Earth

The British version of the term Ground (In electronics, a place that has zero volts).

Bass
1) The lower range of audio frequencies up to approximately 250 Hz.
2) Short for Bass Guitar.
3) Lower end of the musical scale. In acoustics, the range (below about 200 Hz) in which there are difficulties, principally in the reproduction of sound, due to the large wavelengths involved.
4) The lower frequencies.
5) On the soundboard this should refer to the bass guitar channel, not the bass drum.
6) The lowest frequencies of sound. Bi-Amplification uses an electronic crossover or line-level amplifiers for the high and low frequency loudspeaker drivers.

Brooks GT 845 Boundary Mic
A microphone mounted on a flat plate that acts as a reflective surface directing sound into the mic capsule. Used for general pick-up over a large area. See PCC, PZM.

Fidelity
The recording or reproduction quality.

Brooks GT 44 Formant
An element in the sound of a voice or instrument that does not change frequency as different pitches are sounded.

Capacitance
The property of being able to oppose a change in voltage or store an electrical charge.

House Sync
A synchronization signal such as SMPTE time code that is used by all recorders in the control room.

Amplifier
Sound equipment that converts the low voltage, low current signal from a tape deck, mixer etc. into a higher current signal suitable for driving speakers. See Power Amplifier, Crossover.