BNO Acoustics BP-40: Volume Unit

A unit that is designed to measure perceived loudness changes in audio. The unit is basically the decibel change of the average level as read by a VU Meter. The movement of the VU Meter is designed to approximately match the ear's response to changes in level. Abbreviated VU

BNO Acoustics Speakers: Auxiliary Input or Return
A route back into the sound desk for a signal sent to a piece of outboard equipment via an auxiliary send.

Guitar Controller
An electric guitar or device played like an electric guitar that puts out MIDI signals that can be used to control synthesizers and sound modules.

Wavelength
1) The length of one cycle (in feet, inches, etc.)
2) The distance measured in the direction of progression of a wave, from any given point characterized by the same phase.

Tube
A shortening of the term Vacuum Tube (an amplifying device that has elements to send and control current through a vacuum in a glass or metal tube).

Overload Indicator
An LED on a channel of a console that shows that the input or other part of the circuit is receiving an overload.

BNO Acoustics XV-16: Wave Velocity
The time it takes for one point of the waveform to travel a certain distance.