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Overview
1.4 FRONT PANEL GUIDE
Fig 1.4 shows the layout of the A 4435A front panel.
1
Volume 1
Volume 2
4
6
4
6
Vox 1
Vox 2
Sens.
Sens.
2
8
2
8
0
10
0
10
Treble
Bass
Treble
Bass
11
10
1
Inputs 1-4 volume controls
Use these controls to adjust the output volume, bass and treble of inputs 1-4.
2
MP3 volume control
Use these controls to adjust the output volume, bass and treble of the MP3 audio.
3
Master Volume
Use these controls to adjust the output volume, bass and treble of the master volume.
4
Active Message Indicators
These LED's indicate which MP3 message/audio file is active.
5
Standby Switch
When the unit is in standby mode this switch will illuminate. Press this button to switch the unit ON. Once the
unit is ON the On indicator will illuminate. Press this switch again to put the unit back in standby mode.
6
On/Fault Indicator
This led indicates when the unit has power if the LED is blue. If the LED is red a fault has occured with the unit.
7
SD Card
This is used to store the MP3 audio files for the message/audio playback. Note the unit is supplied with a tamper
cover so that the SD card is not easily removed. The SD card may need to be pushed in with a screwdriver to insert
and to remove because of the depth of the socket.
8
Output Active Indicator
This led indicates when the unit has an input signal present.
9
Music input
This input will override input 4 when connected. Use this for connection of portable music players.
(Note 1: this input has a fixed input sensitivity).
(Note 2: switch 1 on DIP4 must be set to ON to enable this function).
10
VOX 1 Sensitivity
This sets the VOX sensitivity of input 1. When the VOX is active on input 1, inputs 2-4 are muted.
11
VOX 2 Sensitivity
This sets the VOX sensitivity of input 2. When the VOX is active on input 2, inputs 3-4 are muted.
www.redbackaudio.com.au
Redback® A 4435A Mixer 4 Input & Message Player
Volume 3
Volume 4
4
6
4
6
4
2
8
2
2
8
0
10
0
10
0
Treble
Bass
Treble
Bass
Treble
Music
Input
9
2
3
MP3
6
4
6
8
2
8
10
0
10
Bass
Output
Active
Master Volume
8
Fig 1.4
4
A 4435
4 Channel Mixer
Message Active
1
2
3
4
SD Card
7
Redback® Proudly Made In Australia
5
On
Fault
Standby
6
5
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