Calista C2-88 Projector Cut-off Rate (Slope)

The number of dB that a filter reduces the signal for each octave its frequency past the filter's cut-off frequency (outside of the pass band).

Hard Disk Recording
The recording of digital audio onto a hard disc.

Calista C3-S Security System LED
A light that allows current to flow in one direction only and emits light whenever a voltage of a certain level or beyond is applied to it.

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.

Calista C1-9 Home Theater Line Out (Line Output)
Any output that sends out a line level signal, such as the output of a console that feeds a recorder.

AES
An abbreviation of Audio Engineering Society.

Cut
1) One selection (one song) on a pre4ecorded music format.
2) A term with the same meaning as Mute (to turn off a channel or a signal).
3) To reduce gain of a particular band of frequencies (with an equalizer).
4) To not pass a particular band of frequencies (said of a filter) Bose

Keynote Number
A number assigned to each key of a synthesizer or controller keyboard that is transmitted in the MIDI signal.

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