Brooks Hi Fi reviews Line In (Input, return)

Where a signal enters the board or component.

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).

Brooks Hi Fi speakers Auxiliary Equipment
Effects devices separate from but working with the recording console.

Bi
A prefix meaning two.

Brooks RM 909 reviews Frequency Range
The range of frequencies over which an electronic device is useful or over which a sound source will put out substantial energy.

Electret Condenser
A condenser microphone that has a permanently polarized (charged) variable capacitor as its sound pressure level sensor.

Bit
The smallest unit of digital information representing a single "0" or 1.

Foot (Foot Drum)
Another name for Bass Drum (the largest drum in the Drum Kit which puts out bass frequencies and is played with a foot pedal).