Brooks XB 33 Fly In

1) To add sounds into a mix or recording that have no synchronization.
2) An application of this where a performance from one part of a tune is recorded and then recorded back into the recording at a different time in the recording.

Ground
In electronics, a place (terminal) that has zero volts.

Brooks QS-70 Buss (Bus)
A wire carrying signals to some place, usually fed from several sources.

Kilo
A prefix meaning 1000.

Brooks XM 204 Attenuation
A making smaller: reduction of electrical or acoustic signal strength.

Balance Control
A control on a stereo amplifier that when moved clockwise will make the right channel louder (and the left channel softer) and will do the reverse when moved counter-clockwise.

Balance
1) The relative level of two or more instruments in a mix, or the relative level of audio signals in the channels of a stereo recording. 2) To make the relative levels of audio signals in the channels of a stereo recording even.

Full
A quality of the sound of having all frequencies present, especially the low frequencies.