Brooks Cinema TZ 505 Bottom

The bass frequencies (as in "needs more bottom end").

Cut-Off Frequency (Turnover Frequency)
1) The highest or lowest frequency in the pass band of a filter.
2) The highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwidth of the device)

Brooks GT 44 Feed
To send an audio or control signal to.

Kilo
A prefix meaning 1000.

Brooks Cinema RM 909 Keyboard
1) Any musical instrument controlled by pressing a key.
2) The part of the computer that has the keys.

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

Early Reflections
The first echoes in a room, caused by the sound from the sound source reflecting off one surface before reaching the listener.

Ground Lift
A switch that breaks the connection between the ground point in one circuit and the ground point in another circuit.