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 9-1
9. RB-HD6 6 Way Stereo Headphone
Distribution Amplifier ……
9.1. Introduction
MASTER LEVEL
6
54321
+
RB-HD6
HEADPHONE DISTRIBUTION AMPLIFIER
Fig 9-1: RB-HD6 Front Panel
The RB-HD6 is a high performance 6-way stereo headphone distribution amplifier for
driving up to 6 pairs of professional stereo headphones from a single stereo or mono
input. A switch on the rear panel enables the distribution of a mono signal to all twelve
outputs (i.e. both earpieces of a pair of stereo headphones) via the left channel input.
Alternatively, the RB-HD6 can be used as six separate stereo headphone amplifiers by
using the override (insert-point, or break-jack) input associated with each outlet. A
typical application might be to provide common headphone feeds for guests around a
table in a radio studio, with a separately derived feed, perhaps including talkback, for
the presenter. The over-ride inputs can also be configured as parallel outputs (to the
front outputs) by altering jumper settings inside the unit.
The XLR-3 inputs are electronically balanced and can be wired unbalanced. The input
level and output volume controls are all on the front panel. There is a master control
that adjusts the level of the master signal to all the outputs, and 6 output level
controls. This master control can be disabled by the use of internal jumpers. Each
output is designed to drive 150 mW into 32Ω to 600Ω stereo headphones and is
individually buffered.
The stereo/mono switch is recessed on the rear panel to prevent accidental knocking. A
LED power indicator on the front panel displays the power supply connection.