Lab.gruppen PLM 20000Q - Manual (Page 69)

Back Panel Interface
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PLM Series Operation Manual rev 1.2.3
8. Back Panel Interface
An overview of the back panel interface is provided in section 4.2. This chapter describes each cluster of
connections as shown in Figure 8-1.
Figure 8-1: Back Panel Interface of a 2-channel PLM
8.1 Speaker Outputs
The PLM is available with either 4 mm binding posts or Neutrik speakON connectors for the outputs.
The outputs of the PLM can produce a high voltage. Do not connect or disconnect loudspeaker/s while
the PLM is powered on. Never operate the PLM with any portion of bare loudspeaker wire exposed.
For speakON connector versions, do not use mating plugs without the rear covers in place.
8.1.1 Bridge Mode
Power outputs may be bridged on all PLM models by following the configuration instructions in the
Lake Controller Operation Manual (I/O CONFIG > OUTPUT CONFIGURATION) and the wiring instructions in
this chapter. Bridge Mode can only be activated/deactivated using the Lake Controller software.
When Bridge Mode is activated, CLASS 3 wiring is
required.
8.1.2 speakON Connectors
Figure 8-1 shows a 2-channel PLM 14000 with speakON connections. speakON connections are also
available on the 4-channel PLM 10000Q and PLM 20000Q. Sections 8.1.2.1 and 8.1.2.2 describe the wiring,
pin-out and output configuration for the 2- and 4-channel models respectively.