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Redbox User Handbook No 1
Output Level Adjustment
The output gain can be individually adjusted for left and right channels through the rear
panel by dipswitches. Each output gain can be set for a signal of full-scale digits in the
digital domain to give +12, +18 or +24dBu output on the XLR connectors (see Fig 1-4).
The consumer output on the phono connector has a further 10dbU attenuation
incorporated.
AES/EBU Output
The digital output XLR 3 pin socket has an impedance of 110Ω. It has the following
connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
The signals on this connector will comply with the IEC 60968 specification
S/PDIF Output
The digital output S/PDIF phono output has an impedance of 75Ω.
Rear Panel Controls
Full Scale dB Settings
The full-scale dB settings can be set for signals of +12, +18, +24 dBu to give full-scale digits
in the digital domain.
Analogue (A/D)
Input Full Scale
Setting (dBu)
Switch 1
Switch 2
+12
OFF
OFF
+18
ON
OFF
+24
ON
ON
Analogue (D/A)
Output Full Scale
Setting (dBu)
Switch 3
Switch 4
+12
OFF
OFF
+18
ON
OFF
+24
ON
ON
Fig 1-4: RB-ADDA Full Scale dB Settings
DIGIT
AL A
UDIO C
ONVERTERS - RB
-ADD
A
DIGITAL AUDIO CONVERTERS
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