Equahzation - JBL LSR4328P Owner's Manual

Reference· Performing An RMC Calibration/Equalization
• The supplied calibration microphone must be connected to perform RMC. If the RMC
button is pressed and held for 3 seconds or longer and no mic is connected, the meter
display will flash to indicate an error condition, and all RMC settings currently in memory will
be erased.
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RMC error condition
To bypass the calibrated settings and compare the original, uncompensated perfomlance with
the corrected perfonnance, press the RMC button so that it lights up. This allows you to listen
to the speaker without the fi lter, delay, level trim and meter calibration appl ied during the
RMC process. To restore RMC functions, press the button again. The button will no longer be
illum inated.
Equalization
Equalization is provided to tai lor response to preference, or acoustic conditions in the room.
The LSR4300 offers two bands of onboard digital qualization (high and low frequency),
with up to 2 dB of cut and boost
in
each band. The equalization L sbelving type with centers
of 500
Hz
for low frequency and 2 kHz for high- frequency. Using the supplied LSR4300
Control Cen ter software, the corner freq uency for each band is adjustable from 20 Hz to I kHz
(LF) and 1 kHz and 20 kHz (HF).
To turn equalization on, press the EQ button on any netwo rked sp aker so that it ligh ts up.
The LF and/or HF buttons immediately to th right of the EQ button wi ll als light up if the
current settin g contains LF or HF boost or cut. (If the current EQ setting contains "flat" LF or
HF equalization - that is, no boost or cut - the associated button will not li ght.)
To apply equalization, simply press the LF or HF button (it will begin blinking), fo llowed by
the +/- buttons. The meter display LEOs will light (all in green) to show you the amount of
cut or boost. If only the two LEOs on either side of the center (-15) mark are lit, that is an
indication that the selected equalization band is flat (i .e., no cut or boost). LEOs lit to the right
of center (that is, to the right of the - 15 mark) indicate the amollnt of equalization boost, whi le
LEOs lit to the left of center (that is, to the left of the - 15 mark) indicate the amount of
equalization cut. With every 0.25 dB of equalization boost or cut, an additional two LEOs
light. Thus, for example, an equalization boost of 1 dB is indicated by eight LEOs lit to the
right of the center (-15) mark.
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