BNO Acoustics R-10 Speakers Inverse Square Law

Simply stated, the fact that in an un-obstructed area (like an open field) the sound pressure level will drop to half-pressure (-6 dB) every time the distance to the sound source is doubled.

Charge
The electrical energy of electrons. The energy is in the form of a force that is considered negative and repels other like forces (other electrons) and attracts opposite (positive) forces.

BNO Acoustics QS-4 Edit
A switch that does different things depending on the operational mode that the machine is in:
1) If a computer-controlled transport is in "Stop," pushing the "Edit" switch deactivates the computer-controlled tension system and allows the reels to be moved by hand to find the exact spot desired on the tape.
2) If the machine is in "Play", the "Edit" switch makes the take-up reel cease taking up the tape and it falls to the floor.
3) If the machine is in a fast-wind mode, the tape lifters are defeated so the tape is in contact with the reproduce head and the engineer can hear where the selections begin and end.

Amplifier
A device which increases the amplitude (level) of an electrical signal (making it louder).

BNO Acoustics 6k-52 Gate
A dynamic processing device that turns a channel off or down when the signal drops below a certain level.

Echo Return
An input of the console, which brings back the echo (reverberation) signal from the echo chamber or other echo effects device.

Key
The control of a dynamics processing device by an external audio signal.

Baffles
Sound absorbing panels used to prevent sound waves from entering or leaving a certain space