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Laser Diode
- A semiconductor device which
emits a laser beam. |
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LED -
Light emitting diode. |
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Line Level
- The standard preamplifier
output level of a signal from an
audio source other than a
turntable. Usually between 100mV
and 1V, but may be as high as 5V
or more from some preamplifiers. |
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Linearity
Error - The deviation in
response from an expected or
theoretical straight line value
for instruments and transducers
(speakers). |
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Liquid
Crystal Display (LCD) - A
type of digital display made of a
material that changes reflectance
or transmittance when an
electrical field is applied to
it. |
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Load -
The electrical demand of a
process, expressed in current
(amps), power (watts), or
resistance (ohms). |
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Local /
Distance Switch - Changes the
sensitivity of the tuner. When
switched to local (LO), the
stronger local stations are
received with a higher image
rejection. When switched to
distance (DX), the weaker,
distant stations are received but
with less image rejection. |
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Loudness
Control - Intended to boost
low frequencies at lower volume
levels and should not be used at
high volume listening levels. |
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Loudspeaker
- An electro acoustic transducer
which converts electrical audio
signals at its input to audible
waves at it's output. May also
refer to a given driver of a
multiple speaker system and not
to the whole speaker system as
might a speaker. |
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Loudspeaker
Compliance - The acoustical
and mechanical equivalent of
capacitance. Determines how
easily a speaker cone/ voice coil
assembly will move when an
electrical signal is applied to
it. |
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Low Frequency
Driver - A loudspeaker
specifically designed to
reproduce long, low-frequency
wave lengths. The driver
typically has a large cone,
magnet structure, and voice coil.
Woofer. |
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Low Pass
Filter - A network of
elements used to attenuate all
frequencies above a predetermined
frequency. Frequencies below the
cutoff point pass without any
effect. |
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Lows -
Term which refers to a set of
speaker components used to
reproduce frequencies below 500
Hz as in a set of woofers. May
also refer to the low frequency
drivers of a set of separates.
Not treble. |
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