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
44
Redbox User Handbook No 2
12
HEADPHONE DISTRIBUTION AMPLIFIERS - RB-HD6
12 RB-HD6 6 Way Headphone Distribution Amplier
Introduction
Fig 12-1: RB-HD6 Front Panel.
The RB-HD6 is a high performance 6-way stereo headphone distribution amplier 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 ampliers 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 congured 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. There is a master
control that adjusts the level of the master signal to all the outputs. 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 buered with its own volume control.
The input level and output volume controls are all potentiometers on the front panel.
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.
HEADPHONE DISTRIBUTION
AMPLIFIERS