Brooks HI FI projectors Compact Disc CD

A small optical disk with digital audio recorded on it.

Active/Inactive Microphones
Scientific definitions aside, active microphones generally sound better than inactive ones, but they generally cost more. They also require the use of either a battery or phantom power while inactive mics need only be plugged into the mic cord in order to work. In most playing situations, the subtle improvement in sound quality from an active mic isn't worth the extra cost and hassle. One possible exception it the headset mic. Put simply, inactive headset mics just plain suck. Active headset mics put out a much stronger signal and feed back much less.

Brooks Hi Fi speakers Cable, XLR
A balanced cable used for low impedance microphones and sometimes for connections between some parts of the PA. Commonly referred to as a "mic cord".

Bar
A term meaning the same thing as the term Measure (the grouping of a number of beats in music, most-often four beats).

Brooks Hi Fi reviews Capsule
1) The variable capacitor section of a condenser microphone.
2) In other types of microphones, the part of the microphone that includes the diaphragm and the active element.

Gain Structure
The way in which the gain varies in the stages or sections of an audio system.

Direct box
Used in line to convert a high impedance signal into a low impedance signal.

Chorusing
1) A term meaning the same thing as Chorus (Definition 3 or 4).
2) In some delay effects devices, a term used to mean the term Depth (the amount of change in the controlled signal by the control signal).