FORUM OPERATION AND MAINTENANCE MANUAL 9601
PAGE 13
LF
Low Frequency.
LINE INPUT
An input designed to accept high level signals as
opposed to microphone level signals. The expected level is
u4dB but increasingly inputs and outputs are being
designed so that they can be altered to operate at -10dBV which
is now quite a common operating level.
LOW PASS FILTER
This is the inverse of a HIGH PASS filter and is used to reduce
frequencies above the operating frequency
MASTER
This normally refers to the main stereo output section
which controls the level of the stereo mix and associated
functions such as monitoring.
MIX PATH
The path used by the signal going to the stereo mix.
PARAMETRIC EQ
An equaliser section which has variable frequency, level and Q.
PAN
A pan control or Pan Pot or Panoramic Potentiometer is used
to spread a mono signal across a stereo bus. In the centre the
signal is reduced by 4.5dB to compensate for the effects of
summing to mono.
PEAKING EQ
In this form of equaliser the response is tailored to enhance a
selected frequency relative to the frequencies above
and below it. Peaking equalisers are normally used as the mid
sections of an equaliser.
PFL
Pre-fade listen. For listening to pre fade signals.
