Brooks QS 70 Cut-Off Frequency (Turnover Frequency)

1) The highest or lowest frequency in the pass band of a filter.
2) The highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwidth of the device)

Fidelity
The recording or reproduction quality.

Brooks QS-70 Fade
1) A gradual reduction of the level of the audio signal.
2) A gradual change of level from one pre-set level to another.

Dry
Describes a sound coming from the PA with no effects on it.

Brooks GS 15 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.

Capacitance
That property of a capacitor which determines how much charge can be stored in it for a given potential difference between its terminals, measured in farads, by the ratio of the charge stored to the potential difference.

Bulk Dump
Short for System Exclusive Bulk Dump (a method of transmitting data, such as the internal parameters of a MIDI device to another MIDI device).

Keyboard
1) Any musical instrument controlled by pressing a key.
2) The part of the computer that has the keys.