Manual
Table Of Contents
- Analogue Redbox User Handbook rev 1.92
- Contents
- Figures
- Warranty, Safety & Installation Information
- RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
- RB-SM1 Single & RB-SM2 Dual Stereo To Mono Converter
- RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo Unbalanced
- RB-LU4 Quad Stereo Balanced To Unbalanced Converter
- RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converte
- RB-SL2 Twin Mono, or Stereo, Limiter
- RB-DA6 6 Way Stereo Distribution Amplifier
- RB-HD1 Stereo Headphone Amplifier
- RB-HD6 6 Way Stereo Headphone Distribution Amplifier
- RB-SD1 Silence Detection Unit
- RB-PMX4 10 Input, 4 Output Analogue Preset Mixer
- RB-LI2 Stereo Line Isolation Unit
- RB-PLI6 6 Way Mono Passive Line Isolation Unit
- RB-SS10 10 Way Stereo Analogue Source Selector/Mixer
- RB-LC3 3 Way Light/Power Controller
- Glossary
- Connectors And Cabling
- Index
Chapter 9 - RB-HD6 6 Way Stereo Headphone Distribution Amplifier
Redbox User Handbook 9-3
9.3. Rear Panel Connections and Operation
INSERT POINTS
654321
MONO
STEREO
Disco nnect t he mai ns supply before removing the equi pment cove rs.
This product must be earthed
9.3.3
LR
INP UT
9.3.1 9.3.2
Fig 9-3: RB-HD6 Rear Panel
9.3.1. Stereo Input (Left and Right)
The XLR-3 input connectors can take balanced professional levels, or unbalanced by
using the front panel master control to increase the input level, and by connecting the
non-phase to the signal ground. The input can be configured as either a stereo input
with six stereo outputs or a mono input with six mono paired outputs. The XLR 3 pin
input has the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
9.3.2. Stereo/Mono Operation
The mode of operation may be switched between a stereo distributed channel to 6
stereo channels, or a mono channel to six mono paired outputs (i.e. the same signal to
both ear pieces), by the push button on the rear panel which is recessed to prevent
accidental switching.
9.3.3. Channel Insertion Inputs or Parallel
Outputs
Each channel has an unbalanced override/insertion input via a ¼” stereo audio jack
socket on the rear panel, which overrides the master input.
Each connector can also be individually configured as a parallel output providing the
same signal as the output on the front of the unit. To configure the jack connector as
an output, you’ll need to alter some jumper settings inside the unit.
9.3.3.1. Removing the Equipment Covers
To get inside the RB-HD6, first ensure that it has been disconnected from the mains
power and that the mains IEC lead to the unit has been removed. Observing anti-static
precautions, undo the four cross-head screws on the back panel at the far left and far
right of the panel (2 at each end). Also undo the small brass screws which
hold the top and bottom panels to the rear panel. The rear panel should slide
backwards out of the unit together with the main circuit board.