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Redback® A 4480B 8 In to 8 Out Audio Switcher
2.6 ADJUSTING THE BASS, TREBLE AND INPUT VOLUMES
The system is now setup and ready to run.
The eight audio inputs all have separate bass, treble and volume controls, which are accessible on the front panel as
shown in Fig 2.6A. These tamper proof controls need to be adjusted with a screwdriver and set to your desired levels. A
signal present LED on each input provides instant feedback on the presence of audio from the input sources.
A perspex cover is provided which can be screwed on to the front panel which covers these bass,treble and input volume
pots to prevent tampering.
2.7 ADJUSTING THE PAGING CONSOLE AND EMERGENCY INPUT VOLUMES
The emergency microphone and paging microphone controls are also shown in Fig 2.6a. The signal present leds indicate
when a signal is present and the volume adjusts the audio level from these two microphones.
2.8 ADJUSTING THE ZONE VOLUMES
The 8 zones also each have volume controls which can be set to the desired levels on the front of the unit (see Fig 2.7A)
3.0 LOCAL AUDIO & PAGING CONSOLE OPTIONS
3.1 LOCAL AUDIO CONFIGURATION
The local audio configuration on the LCD indicates zones that have a local audio source connected via the A 4478 local
audio wall plate and the A 4491/92 zone wall plate (see section 5.2 and 5.4 for connection details).
If a local audio source is detected on a zone wall plate it is displayed on the LCD via an asterisk (*) in the local section. For
example, if zone 1 had an A 4478 fitted with a live audio source connected, the system would detect the presence and
display an "*" in zone 1 as shown in fig 3.1A. This automatically overrides any input source selected via the front panel.
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Redback® Proudly Made In Australia
Input 1
Input 2
Input 3
Paging
Console
Bass
Bass
Signal
-
+
Treble
Treble
Treble
Emergency
Signal
Signal
Signal
Input
Signal
Vol 1
Vol 2
Vol 3
-
+
Zone 1
Zone 3
6
4
4
2
8
2
0
10
0
Zone 2
Zone 4
6
4
4
2
8
2
0
10
0
Input 4
Input 5
Input 6
Bass
Bass
Bass
Bass
Treble
Treble
Treble
Signal
Signal
Signal
Signal
Vol 4
Vol 5
Vol 6
Fig 2.6A
Zone 5
Zone 7
6
6
6
4
4
8
2
8
2
8
10
0
10
0
10
Zone 6
Zone 8
6
6
6
4
4
8
2
8
2
8
10
0
10
0
10
Fig 2.7A
Input 7
Input 8
Bass
Bass
Treble
Treble
Signal
Vol 7
Vol 8
www.altronics.com.au
Setup Guide
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