BNO Acoustics 6k-52 CD (Compact Disc) :

1) Digital sound storage medium. Provides a high quality source of music, sound effects etc. Also used as a playback medium for sound effects etc. by large theatres with long running shows, although CDR (Recordable CD) is becoming more affordable by the day.
2) An abbreviation of the term Compact Disc (a small optical disk with digital audio recorded on it).

Hybrid
A product created by the marriage of two different technologies. Meant here as the combination of a dynamic woofer with an electrostatic transducer.

BNO Acoustics GK-3 Generating Element
The portion of the microphone that actually converts the movement of the diaphragm into electrical current or voltage changes.

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

BNO Acoustics Speakers DC
Abbreviation for direct current.

Dry
Describes a sound coming from the PA with no effects on it.

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.

Alternating Current
Electric current which flows back and forth in a circuit.