User Manual

www.redbackaudio.com.auRedback® Proudly Made In Australia14
Redback® A 4275C/85C 125/250W Mixer Amplier
Setup
DIP 4
These are currently not used.
DIP 5
This congures the 24V DC switched out status, determines the output of the Preamp Out and sets the phantom power
to the inputs. See Fig 2.3C for details.
Switch 1- Sets the switched 24V DC out to ON or OFF. IF set to ON the switched output will activate whenever the
PTT contacts are triggered or when a priority/VOX is activated.
Switch 2 - The Preamp output can be set up to be effected (post master volume) by the master volume control or
unaffected (pre master volume).
Switch 3- Sets the phantom power (15V DC) for input 6.
Switch 4- Sets the phantom power (15V DC) for input 5.
Switch 5- Sets the phantom power (15V DC) for input 4.
Switch 6- Sets the phantom power (15V DC) for input 3.
Switch 7- Sets the phantom power (15V DC) for input 2.
Switch 8- Sets the phantom power (15V DC) for input 1.
2.4 Adjusting VOX levels
The VOX sensitivity levels for inputs 1-3 sensitivity can all be adjusted via trimpots accessed through the front panel.
DIP4 Switch Settings
SW
Item On
Off
1
2
3
4
Not Used
Not Used
Not Used
Not Used
DIP 4
DIP5 Switch Settings
SW
Item On Off
Switched 24VDC Out On Off
Phantom Power Input 6 On Off
On Off
1
2
3
4
Phantom Power Input 5
On Off
5
Phantom Power Input 4
On Off
6
Phantom Power Input 3
On Off
7
Phantom Power Input 2
On Off
8
Phantom Power Input 1
Preamp Out
†
Post
Pre
†
Sets the Preamplifier output to
Pre or Post Master.
DIP 5
Fig 2.3B
Fig 2.3C