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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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