
individuals is often much more restricted. A good
H
Hz (Hertz)
Cycles per second, named after Heinrich Hertz.
I
Impedance
The resistance to the flow of an electric current in a circuit.This is effectively the electrical load that a loudspeaker presents to the amplifier which drives it and is measured in ohms.
Input sensitivity
SPL (sound pressure level) a speaker produces, given one watt of power, measured from a
Interface
A device or protocol which facilitates the linking of any two devices or systems; or when used as a verb (‘to interface’), the process of linking.
IP address
An IP (Internet Protocol) address is a unique computer address that enables electronic devices to communicate with and identify each other.
K
Kbps
Kilobits per second. A
K
kHz (kilo Hertz)
1000Hz or 1000 cycles per second.
L
LCD (Liquid Crystal Display)
Probably the most common way to show visual information on
Lossless compression
A system for reducing the number of data bits (density) in a musical signal without corrupting the original.
M
M4A
The audio file format used by Apple in their iTunes Music Store often appears on your system with the ‘.m4a’ filename extension. M4A can produce better audio quality than MP3 using less physical space for the files.
MHz (Mega Hertz)
One million cycles per second.
Mono (monaural)
The operation of an amplifier in one channel for both input and output. Can refer to an amplifier with only one channel of amplification or operating in bridged mode. For low- frequency amplification applications, it provides better phase coherence and less distortion than stereo operation.
MP3
A file format with a sound data compression system. MP3 is the abbreviation of Motion Picture Experts Group 1 (or
Mute
28EN