Brooks KM 77 Keyboard Controller

A device that has the standard music keys of piano but puts out MIDI signals

Line Out (Output, Send)
Where a signal leaves the board or component.

Brooks Cinema ZL 44 Amplifier (Power amp, Head)
It's the part of the sound system that actually magnifies or "amplifies" the sound. In other words, it makes stuff louder.

Input Impedance
The opposition to current flow by the first circuits of a device.

Brooks Cinema KP 30 Format
1) The number of tracks, their width, spacing and order for tape recording.
2) To prepare a digital storage medium so that it will accept and store digital information bits.

High-Pass Filter
A device that rejects signals that are below a certain frequency (called the cut-off frequency) and passes signals with frequencies that are higher.

BPM
An abbreviation of Beat Per Minute (the number of steady even pulses in music occurring in one minute and therefore defining the tempo).

Cascade
To set and interconnect two mixers so that the stereo mixing buss(es) of the first mixer feeds the stereo buss(es) of a second mixer.