Redbox RB-DMX4 User Handbook
5
2
FRONT PANEL CONTROLS
& INDICATORS
FR
ONT P
ANEL C
ONTR
OLS & INDIC
A
TORS
Monitor Output Select Mode
To enter Monitor Output Select Mode, simply press and release the MONITOR button.
The button turns red and the surrounding LEDS now display which output is selected for
monitoring, in red. This mode will last for two seconds, which is refreshed every time the
button is pressed and released. If the unit is in Stereo Mode, LEDs 1 & 2 illuminate together,
as do 3 & 4. See page 7 for configure the unit in Stereo Mode.
Output Gain Mode
To enter Output Gain Mode, first enter Monitor Output Select Mode and select the
channel which you would like to apply gain to. Within two seconds, press and hold the
MONITOR button until the button changes from red to green. On release of the button, the
surrounding LEDS will now switch to display the current output gain for this channel. Press
and release the button to choose the output gain levels from one of:
LED 1 Green: 0dB
LED 2 Green: +3dB
LED 3 Orange: +6dB
LED 4 Red: +12dB
After choosing your required setting, press and hold the button until it changes colour
from solid green. This will return the button to the Display Mode.
Note: Make sure that you check the presence LEDs to ensure that the output is not clipping.
SERIAL LED Indicator
If the rear panel Serial Mode DIPSwitch 11 is ON, then this LED illuminates. In
this mode, the unit is being controlled serially using the Sonifex SCi software.
Headphone Output
The front panel headphone output is a ¼” (6.35mm) stereo
jack socket capable of delivering over 80mW into 32Ω - 600Ω
professional headphones at full volume. Higher impedance
headphones may be used at reduced levels. Lower impedance
headphones should not be used.
Please be aware that this headphone amplifier has been designed
to cope with the varying different headphone and full scale line-
up set-ups that are used. Consequently, the monitor attenuation
DIPSwitch 10 should be turned on if the output sounds very loud
and distorted at any time.
LEVEL Control
The front panel LEVEL control is a potentiometer that adjusts the level of the monitor
output and provides a gain range of -70dB to +12dB.
Reset Button
In the unlikely event that the RB-DMX4 unit fails to respond, press the reset button to
reboot the unit (see Fig 2-1 for location).
Fig 2-6: RB-DMX4 Serial
Control Indicator LED
Fig 2-7: RB-DMX4
Headphone Output &
Level Control