Pub. 42004-554A
E3 Speaker Master and Remote Modules Page 6 of 6
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-554A.docx
08/20
Calibrate Channel Levels
Calibrate the amplifier channel levels to optimize communication between the speaker master and the
speaker remotes on each amplifier channel. Always recalibrate the channel levels after channel wiring
modifications or when adding or removing speakers from a channel. Adjust the amplifier level for initial
installations. Configure the LO and HI hex switches for the address of the master controller before
calibrating the speaker master module channels.
1. With power on, place a jumper on pins 2-3 of the TEST post.
2. Set the LO hex switch to the channel (1-4) to calibrate.
3. Set the HI hex switch to E.
4. Connect an RMS voltmeter to the most distant speaker remote.
5. Adjust the speaker master PWR ADJUST potentiometer to obtain 50 V
RMS
signal at that speaker
remote.
6. Adjust the LO hex switch for the next channel and repeat Step 4.
7. Remove the test jumper from posts 2-3 and set the LO and HI hex switches back to the configured
address.
Specifications
Speaker Master Module
Power input ....................................................................................... 24 V dc +/−20% @ 100 mA maximum
Physical size ....................................................................................................... 4.00 W × 7.50 L × 1.25 D in
Operating environment ................................................... 0 °C to 50 °C @ 95 % humidity (non-condensing)
Speaker Remote Module
Power input ................................. page audio for speaker health-check, 35-Hz tone for data communication
Physical size ................................................................................................ 4.50 L × 3.90 H × ~2.8 D inches
Cable ............................................................................. shielded twisted pair 14 AWG (2.5 mm
2
) minimum
Operating environment ................................................ −40 °C to 70 °C @ 95% humidity (non-condensing)
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