Redback A 4427 Operating Manual page 7

8 channel mixer with message player

Table of Contents

Figure 3 demonstrates a basic install with five input sources. The VOX priorities are set for 3 levels of priority, so that the

microphone on input 1 has the highest priority. The input 1 DIP1 switch settings are set for a 100mV sensitivity balanced

microphone input with the priority/VOX enabled which makes this input priority level 1. (Refer to section 7.0 for more

details about DIP switch settings).

Input 2 is connected to a telephone paging system with a line level output. The Input 2 DIP2 switch settings are set for a

line level input with 1V input sensitivity and the VOX is enabled which makes this input priority level 2.

Input 3 is shown with a microphone connected. The Input 3 DIP3 switch settings are set for a 100mV sensitivity balanced

microphone input and with the VOX enabled which makes this input priority level 3.

Inputs 4 and 5 are set as line level inputs with a sensitivity of 1V and the VOX priority disabled.

The output of the mixer is fed into a power amplifier which drives the speakers.

All DIP switch settings are shown below.

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Redback® A 4427 8 Channel Public Address Mixer

NOTE: The switches are ON when in the up position.

Input 1 Settings

DIP 1