Front of House or FOH are the main speakers (including subs) in a club, theatre or stage sound system. They are the speakers that the audience listen to.

Every object or space has a resonant frequency (resonance). When you pluck a string it vibrates at its resonant frequencies. When you sing or beatbox in a shower you will ...

Foldback is a term used for audio that is sent (folded back) to the musicians in a live or studio setting. A foldback mix is separate to the main mix ...

Equalisation is known as EQ. It is a section on a mixer or in a software plugin that allows you to alter the frequencies of the sound on a channel. ...

PFL stands for Pre-Fade Listen. It is a button on a mixer input channel that lets you monitor that channel - usually by sending it on its own to the ...

A high pass filter does what it sounds like it does. It's a filter that lets high frequencies through. In other words, low frequencies are cut out. On mixing consoles ...

A fader on a mixer controls the output level from the input channel strip or master strip from a mixer or digital audio interface.

Gain is an amplifier on the input channel strip of a mixer or digital audio interface that allows the user to set the correct electrical signal level from the source ...

A D.I. Box is a box that converts a line level signal into a microphone level signal. D.I. Boxes come in two flavours. Passive D.I. Boxers do not need power ...

A differentiator is an an electronic circuit that takes two signals and outputs the difference between the signals. Differentiators are used in balanced microphone inputs on mixers as they expect ...