24 Series Installation and User Guide V1.0
18
Auxiliary Output
24 Series mixer-ampliers are provided with auxiliary outputs
from each zone: these are available on the AUX OUTPUT
connectors [25]. These may be used to drive additional
ampliers, for recording, or any other purpose where system
“expansion” is required. The connector is a 3-pin, 3.5 mm-
pitch screw terminal type.
The signal at the Auxiliary Output is impedance balanced
and line level, and can thus be used to drive most external
equipment directly. The wiring is as follows:
S
+
_
AUX OUTPUT: BALANCED
CONNECTION
AUX OUTPUT: UNBALANCED
(DON’T CONNECT PIN 2)
S
+
_
scn
cold (-)
hot (+)
hot (+)
scn
The signal at the AUX OUTPUT connector is the mix of music
and mic channels set up for the zone by the front panel level
controls.
Note that the music signal at the Auxiliary Output is not
subject to the action of the 65 Hz high-pass lter. However,
the Mic EQ and Music EQ controls are effective on the
Auxiliary Output mix (for the mic and music components of
the mix respectively).
Utility Output
The mixer-amplier also has a Utility output, which is ideal
for providing the feed to a loop amplier, or for connection
to low-power ampliers driving speakers in secondary areas
such as corridors or toilets. It is an impedance-balanced, line
level signal available at the UTILITY OUT connector [24],
which is a 3-pin, 3.5 mm-pitch screw-terminal type.
The Utility output can have an independent mix of music
and mic signals: the mix is adjusted with the rear panel MIC
and MUSIC preset controls adjacent to the UTILITY OUT
connector. By default, the music source will be that selected
for Zone 1 – either by the front panel Zone 1 MUSIC SOURCE
control, or a remote control plate in Zone 1. Alternatively, the
Utility output music source may be set to be permanently
that connected to Line Input 1: this is done by moving
internal jumper J1 from Z1 to L1. If J1 is set to Z1, the Utility
Output will be affected by Line 4 Priority, but not Mic-over-
Music Priority. If J1 is set to L1, it will not be affected by
any Priority actions. See page 25 for details of PCB jumper
locations.
Note also that the level of the mic signal in the Utility output
mix is not affected by either front panel MIC LEVEL control.
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