JBL LSR4312SP Owner's Manual page 15

X
When using an external Bass Management Processor, set DIP switch #5 to LFE and set Low Pass Filter to
NONE.
X
When using digital audio inputs, the setting of the third and fourth DIP switches determine which channel or
channels of the stereo AES/EBU or S/PDIF signal will be reproduced by the LSR4312SP, and at least one of these
switches must be in the ON (RIGHT) position. If both switches are placed in the OFF (left) position, all fi ve LEDs in
the meter display will strobe and all buttons will blink, indicating an error condition. If both switches are placed in
the ON (RIGHT) position, the LSR4312SP will reproduce signal coming from both A + B channels.
7. Press the front panel INPUT button on the subwoofer or on any networked speaker so that it begins
blinking. While it is still blinking, press the + / - controls on any speaker to select the desired input. The
front panel LEDs and the rear panel ACTIVE INPUT display shows which of the three inputs (Analog, S/
PDIF, or AES/EBU) is currently selected. If a digital input is selected, the rear panel ACTIVE INPUT display
also shows which channel(s) are being reproduced by that speaker. See #10 on page 16 in this manual for
more information about input selection.
8. Set the bass management crossover and/or LFE fi lter frequency as desired.
a. If you are using bass management (see page 34 in this manual for more information), set the
Bass Management Crossover frequency as desired by pressing the BASS MGMT X OVER button,
followed by the + and – buttons. If you don't know what frequency to use, we recommend starting
with the Bass Management crossover set at 80Hz. Press the bass management ON button to
enable bass management. The button will illuminate. (See #7 on page 13 in this manual for
more information.)
b. If you are not using bass management, set the LFE Filter frequency as desired by pressing the
LFE FILTER button, followed by the + and – buttons. If you don't know what frequency to use, we
recommend starting with the LFE Filter set at 80Hz. (See #8 on page 14 in this manual for
more information.)
9. Temporarily power down the entire networked system by pressing the front panel POWER button
on any speaker or subwoofer, then power on your signal source. Finally, power on all speakers in the
networked system by pressing the front panel POWER button on any speaker (or subwoofer) again. All
speakers and subwoofers in the system will power on (the JBL Logo will change from dimly to brightly lit.)
LSR4312SP Front Panel
Quick Start
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