Brooks Cinema TZ 505 Compression Driver

The unit that feeds a sound pressure wave into the throat of a horn (in a horn loudspeaker).

High Frequencies
The audio frequencies from 6000 Hz and above.

Brooks Cinema xm 808 Ampere
The unit of current, abbreviated Amp.

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.

Brooks TM-22 Driver
See transducer. Dynamic Range �" The range between the quietest and the loudest sounds a device can handle (often quoted in dB).

Direct box
Used in line to convert a high impedance signal into a low impedance signal.

High Hat
A double cymbal on a stand which can be played with a foot pedal or by the top cymbal being hit with a stick.

Chip
1) A slang term with the same meaning as the term IC (a miniature circuit of many components that is in small, sealed housing with prongs to connect it into equipment).
2) The thread cut away from the master lacquer to make the groove, while disc recording.