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 3 - RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad
Stereo Unbalanced to Balanced Converters
Redbox User Handbook 3-1
3. RB-UL1 Single, RB-UL2 Dual & RB-UL4
Quad Stereo Unbalanced To Balanced
Converters
3.1 Introduction
Fig 3-1: RB-UL1 & RB-UL2 Front Panel
RB-UL4
QUAD UNBA L - BAL CONVER TER
Fig 3-2: RB-UL4 Front Panel
The RB-UL1 single, RB-UL2 dual & RB-UL4 quad stereo units are used for interfacing
domestic, or semi-pro unbalanced equipment to professional balanced line levels.
All connections are on the rear panel. The RCA unbalanced inputs have an impedance
of 10kΩ bridging and are routed to the balanced XLR-3 outputs with an output
impedance of <50Ω.
The RB-UL1 has two inputs & outputs, the RB-UL2 has four inputs & outputs and the
RB-UL4 has eight inputs & outputs.
The output gain can be individually adjusted for left and right channels by using pre-
set potentiometers accessible through the rear panel. A LED power indicator on the
front panel displays the power supply connection.