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Redbox User Handbook No 1
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DIGITAL AUDIO CONVERTERS
Front Panel Indicators & Controls
Fig 4-3: RB-DAC1 Front Panel
Sync & Power Indicator
The LED on the front panel is normally red to indicate that power is present on the unit.
However, it also has a secondary role to indicate the status of the digital inputs :
Flashing between red and amber – indicates a loss of a valid digital input signal.
Headphone Output
The output available on the front panel through a ¼” stereo jack socket, is designed to drive
150 mW into 32Ω to 600Ω professional headphones.
Volume Control
The headphone output has its own volume control, which is independent of the level
adjustment for the main outputs, and has a maximum output level of +12dBu.
Rear Panel Connections and Operation
Fig 4-4: RB-DAC1 Rear Panel
Sync & Power
Indicator
Headphone
Output
Volume
Control
AES/EBU
Input
Analogue
Outputs (L&R)
RCA Phono
Outputs (L&R)
Full Scale
Digits and
De-emphasis
Switches
Digital Select
Button
S/PDIF
Input
