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 5 - RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converter
Redbox User Handbook 5-1
5. RB-BL2 Single & RB-BL4 Dual Bi-
Directional Matching Converter
5.1. Introduction
Fig 5-1: RB-BL2 Front Panel
RB-BL4
DUAL BI -DIRECT IONAL CONVERT ER
Fig 5-2: RB-BL4 Front Panel
The RB-BL2 is a bi-directional stereo unit for interfacing domestic, or semi-pro
unbalanced equipment to professional balanced line levels, and vice-versa. The RB-
BL4 has dual bi-directional stereo capability.
All connections are on the rear panel. The XLR-3 electronically balanced inputs have
an impedance of 20kΩ bridging and are routed to unbalanced RCA (phono) outputs
with an output impedance of <50Ω.
The RCA unbalanced inputs have an impedance of 10kΩ bridging and are routed to
balanced XLR-3 outputs with an output impedance of <50Ω.
The output gain can be individually adjusted for left and right channels by using pre-
set potentiometers accessible through the rear panel. An LED power indicator on the
front panel displays the power supply connection.