Advertisement
OUTPUT BALANCED
XLR(Male)
Mixer Output
1
2
Signal
3
Pin 1: Earth, Pin 2: Signal In Phase (hot), Pin 3: Signal Out of Phase (cold)
4. Turn all controls fully down and then switch the mixer and amplifier on.
5. Turn up the level control associated with the input that you are using to about half way. Talk into the microphone (or
play some music) and adjust the Master level to achieve the required level.
For the best noise performance turn the input level control to a high setting and use the Master as the volume control.
Use the other input level controls to set the required mixing ratios. If you are using the auxiliary inputs, adjust the bass and
treble controls to get the desired sound. If you have the tone routing DIP switch set to "TONE THROUGH", you may also
adjust the Bass and Treble controls when using microphone(s) to get the desired sound.
4.0 DIP SWITCH SETTINGS
DIP Switches
Switch 1 - ON - Bass Normal, OFF - Bass Cut
Switch 2 - ON - Mic inputs routed through tone controls. OFF - Mic inputs bypass tone controls.
Switch 3 - ON - Mic inputs VOX mute AUX 1 and AUX 2.
Switch 4 - ON - Enables Phantom power (12V DC) to Mic inputs 1-6.
5.0 FAULTS/SYMPTOMS
Fault/Symptom: No Sound
• Check that there is power on both the mixer and power amplifier. The mixer has a LED light to indicate if there is
power.
• Check master volume is turned up.
• Check all lead connections
Fault/Symptom: When Paging the Music is Not Muted
• Set the VOX Muting DIP switch to "ON".
Fault/Symptom: Bass Control Fails to Give Bass Boost
• Check that the Bass Cut DIP switch is set to "ON"
Fault/Symptom: Microphone Does Not Work
• The microphone may need phantom power. If so set the Phantom Power DIP switch to "ON".
• Check microphone volume is turned up.
Fault/Symptom: Tone Controls Do Not Work on Mic
• Set the Tone Routing DIP switch to "ON".
www.redbackaudio.com.au
Redback® A 4420C 8 Channel Public Address Mixer
XLR(Female)
Amp Input
Shield
2
1
3
Figure 3. XLR mixer output connection details.
OUTPUT UNBALANCED
XLR(Male)
Mixer Output
Signal
1
2
3
Redback® Proudly Made In Australia
RCA
RCA
Shield
For Stereo
Amps/Mixers
3
Advertisement
