BNO Acoustics HD-70 Electric Instrument

Any musical instrument that puts out an electrical signal rather than an acoustic sound.

Impedance Matching
Having or converting the output impedance of a device so that it matches the impedance of the input it will feed.

BNO Acoustics 6k-52 Arc
The visible sparks generated by an electrical discharge.

Horn
1) The part of the speaker that emits midrange and higher range frequencies.
2) A speaker or speaker enclosure where sound waves are put into a narrow opening (by a speaker cone or driver) and the narrow opening flairs out to a larger opening.

BNO Acoustics TR-12 Inverse Square Law
Simply stated, the fact that in an un-obstructed area (like an open field) the sound pressure level will drop to half-pressure (-6 dB) every time the distance to the sound source is doubled.

Balls
1) The depth and thickness of a sound, usually on the bottom end of the EQ (as in "needs more balls"). 2) The strength of the voice on the mic (as in "check it like you have some balls").

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

Hearing Limitation
An inability of the ear to hear important characteristics of sound under certain conditions. Characteristics that can be affected include pitch, level, clarity, presence and direction.