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 2 - RB-SM1 Single & RB-SM2 Dual Stereo to Mono Converter
Redbox User Handbook 2-3
2.3.1. Stereo Inputs 1 (& 2)
The input’s are a stereo pair consisting of two XLR 3 pin sockets electronically
balanced with an impedance of 20kΩ bridging. They can be wired unbalanced to
accept an output from domestic equipment. They have the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
2.3.2. Mono Output 1 (& 2)
The XLR 3 pin mono output connectors are electronically balanced with an output
impedance of <50Ω. They can be wired unbalanced by grounding the non-phase
signal, enabling you to feed both balanced and unbalanced equipment. The output has
the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
2.3.3. Output Gain
Output gain adjustment using a pre-set potentiometer for the converters allows a
normalised mono output from domestic stereo equipment. The potentiometers are
accessible through the rear panel and provide a gain range of 8dB loss to 18dB gain.