Manual
Table Of Contents
- Contents
- Figures
- Warranty
- Safety Information
- 1 RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo Unbalanced To Balanced Converters
- 2 RB-LU4 Quad Stereo Balanced To Unbalanced Converter
- 3 RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converter
- 4 RB-PA2 Dual Stereo RIAA Phono Amplifier
- 5 RB-LI2 Stereo Line Isolation Unit
- 6 RB-PLI6 6 Way Mono Passive Line Isolation Unit
- 7 RB-DA6 & RB-DA6G 6 Way Stereo Distribution Amplifier
- 8 RB-DA4x5 4 Input 4 x 5 Output Distribution Amplifier/Mixer
- 9 RB-DDA6A 6 Way Stereo AES/EBU Digital Distribution Amplifier and RB-DDA6S 6 Way Stereo S/PDIF Dig
- 10 RB-DDA6W 6 Way Word Clock Distribution Amplifier
- 11 RB-HD1 Stereo Headphone Amplifier & RB-HD2 Dual Headphone Amplifier
- 12 RB-HD6 6 Way Headphone Distribution Amplifier
- 13 RB-DHD6 Digital 6 Way Headphone Distribution Amplifier
- 14 Connectors & Cabling
- Glossary
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Redbox User Handbook No 2
Fig 13-4: RB-DHD6 Rear Panel.
AES/EBU Input
The digital input 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 should meet the IEC 60968 specication
S/PDIF Input
The S/PDIF digital phono input has an impedance of 75Ω.
Status Select Switches
Status
1 On De-emphasis On
1 O De-emphasis O
2 Reserved
3 Reserved
4 Reserved
Fig 13-5: RB-DHD6 Status Select Switches.
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 Outputs
The headphone outputs on the front panel consist of six ¼” stereo jack sockets, designed to
drive 150 mW into 32Ω to 600Ω professional headphones.
Volume Control
The headphone outputs each have their own volume control and have a maximum output
level of +12dBu.
Rear Panel Connections and Operation
AES/EBU
Input
S/PDIF
Input
Digital
Input
Select
Status
Select
Switches
AUDIO DISTRIBUTION AMPLIFIERS - RB-DHD6
AUDIO DISTRIBUTION
AMPLIFIERS
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