Operation Manual

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Rear Panel Connectors and Controls

Front Panel Controls

a) Input Select

Choose one line input channel (1 to 6) to send to each zone

output (1 to 4).

b) Zone Volume

Set the volume level for each zone (1 to 4). Turn clockwise to

increase volume, anticlockwise to decrease.

c) Mic Volume

Four screwdriver controls set the volume level from the paging

microphone mixed with each zone’s music signal (zones 1 to 4).

When set to zero, music ducking (see Appendix 1) is disabled

for that zone.

d) Zone signal indicator

This white indicator LED illuminates when a signal is present.

The brightness of the LED gives some indication of the signal

level.

e) Power On/O

This is a true mechanical power switch (not a standby mode).

Its position is retained even during mains power failure.

f) Power on indicator

This blue indicator LED is o when the power switch is o and

lights blue when the mains power is on. Rapid ashing

indicates that the RS-232 enabled standby mode is in

operation.

a) Mains power input

IEC 3-pin connector. Use power cord supplied.

WARNING – The power cord must be connected to a power

socket outlet with a protective earth connection.

b) Line Inputs

Six line input channels on RCA phono pairs, each of which can

accept a mono or stereo source (stereo sources are internally

mixed down to mono). The front panel Input Select switches

(see above) pick which channel is to be sent to each Zone

output.

c) Line input gain controls

Rotary potentiometer to set gain for input channels 1, 2, 3, 4, 5

and 6.

d) Input level set aid

A single 2-colour LED is provided to assist setting the line input

levels. By applying a signal on each input in turn the level can

be set optimally. Green indicates the signal is in the optimum

range (>-20dB) and Red indicates that clipping is imminent

(>-2dB)

e) Zone Outputs (unbalanced)

Four mono RCA phono sockets carry the Zone (Line) outputs.

Each Zone Output can be selected to have a at frequency

response or the Audica speaker EQ (AEQ) equalisation (see

page 6 ).

f) Zone Outputs (balanced)

Balanced audio outputs are provided on 3-way Phoenix

connectors for Zones 1, 2, 3 and 4. These replicate RCA jack

outputs for each zone. The balanced output level is double the

unbalanced output.

If taking a single-ended output from the balanced output

terminals then use the ground pin for screen and ‘+’ pin for

signal. DO NOT connect the ‘–‘ output pin to ground.

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