JBL LSR4312SP, Owner'S Manual

Page: 13 / 61

7
3. Connect the LSR4312SP to a suitable power source using the supplied AC power cable.
4. If you are using the LSR4312SP in a system with other LSR4300 studio monitors, network the
speakers together in any order using the supplied CAT5 cable. Plug one end of the cable into either of
the two HiQnet ports on one speaker or subwoofer and the other end into a HiQnet port on another
speaker or subwoofer until all units are connected. Connect the two supplied RJ45 network terminator
plugs to the fi rst and last speakers or subwoofers in the chain. (See page 25 in this manual for more
information on networking your LSR4300 system.)
5. Set the Network ID DIP switch on the rear panel of the subwoofer. If you are using only one
LSR4312SP subwoofer, set only the topmost DIP switch (labeled SUB1) to the ON (right) position and
set the second DIP switch (labeled SUB2) to the OFF (left) position. If you are using two LSR4312SP
subwoofers, set one to “SUB1” and the other one to “SUB2”. (See Appendix B on page 38 in this
manual for more information.)
X
One subwoofer in the system must have the its topmost (SUB1) DIP switch set to the ON position. If you are
using two subwoofers, set only one to SUB1 and the other to SUB2. If both switches are accidentally set ON or
OFF, the subwoofer(s) will indicate an error condition by strobing fi ve front-panel LEDs and all buttons will begin
blinking.
6. Make all required audio connections by connecting your audio devices to the analog and/or digital
inputs of the LSR4312SP fi rst, and then use its analog and/or digital outputs to distribute the signal to
the main speakers. The LSR4312SP subwoofer is able to accommodate up to six channels of analog
signal, and it also includes one stereo S/PDIF digital input and one stereo digital AES/EBU input.
The instructions below explain how to interconnect the LSR4312SP with stereo and multichannel
(surround) analog and digital sound sources. (See page 28 in this manual for more information on
audio connections.)
To connect stereo analog signal sources:
a. Connect the Left and Right analog outputs of the source to the LEFT and RIGHT XLR or ¼�
inputs of the LSR4312SP using appropriate cables.
b. Set the rear panel Input Sensitivity Switch to +4 dBu (switch IN) or -10 dBV (Switch OUT) to
match the nominal level of the signal source.*
c. Connect the LEFT and RIGHT outputs of the subwoofer to the inputs of the Left and Right
speakers using appropriate cables. (See appendix E on page 46 for a wiring diagram)
To connect multichannel (surround sound) analog signal sources:
a. Connect the Left, Right, Center, L Surround, and R Surround analog outputs of the multichannel
signal source to the corresponding XLR Bass Management inputs of the LSR4312SP using
appropriate cables.
b. Connect the LFE (Low Frequency Effects) output of the multichannel signal source to the LFE
input of the LSR4312SP.
c. Set the rear panel Input Sensitivity Switches for all speakers to +4 dBu (switch IN) or -10 dBV
(Switch OUT) to match the nominal level of the signal source. *
*If you are uncertain how to set this switch, consult the owners manual for the signal source. Most
professional devices 4dBu level signals and most consumer devices output -10 dBV signals.
Quick Start