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Redbox
User Handbook
Mixers & Source Selectors, Microphone
Amplifiers, Stereo to Mono Converters,
General Interfaces
RB-SS10
10 way stereo analogue source selector/mixer
RB-DSS10
10 way stereo digital source selector
RB-PMX4
10 input, 4 output analogue preset mixer
RB-SSML1
Mic/line source selector with compressor/limiter
RB-MA1
Microphone amplifier, single
RB-MA2
Microphone amplifier, dual
RB-DMA2
Dual digital microphone amplifier
RB-ML2
Microphone limiter, 2 channel
RB-SL2
Twin mono, or stereo limiter
RB-SM1
Stereo to mono converter, single
RB-SM2
Stereo to mono converter, dual
RB-LC3
3 way light/power controller
RB-MM1
Mix minus generator
RB-OA3
3 studio on-air switcher
RB-OA3R
Remote switch panel for RB-OA3
No3
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Table of Contents
Related Manuals for Sonifex Redbox RB-DSS10
Summarization of Contents
Warranty Information
Warranty and Liability
Outlines the terms and conditions for product repair or replacement.
Unpacking the Redbox
Instructions for checking the contents of the Redbox package upon receipt.
Safety & Installation Information
Safety of Mains Operated Equipment
Details safety regulations and warnings for mains-powered equipment.
Voltage Setting Checks
Ensures the correct voltage setting for the mains power supply.
Fuse Rating
Specifies the correct fuse rating for safety and proper operation.
Power Cable and Connection
Guidelines for connecting the power cable, including wiring standards.
Installation Information
Covers environmental considerations and fitting guidelines for the unit.
WEEE & RoHS Directives
Statement regarding waste electrical equipment and hazardous substances.
RB-SS10 10 Way Stereo Analogue Source Selector/Mixer
Introduction
Overview of the RB-SS10's functionality as a source selector and mixer.
System Block Diagram
Visual representation of the RB-SS10's internal signal flow and components.
Front Panel Indicators & Controls
Details on the illuminated buttons, gain controls, and other front panel features.
Additional Modes
Explains alternate, latched, and protected alternate operation modes.
Rear Panel Connections and Operation
Explains the XLR and D-type connectors on the rear panel and their functions.
RB-SS10 Additional Audio Input Connectors
Pinout details for the 25-way D-type connectors used for audio inputs.
RB-SS10 Remote Start I/O
Pinout and function of the 25-way D-type connector for remote start signals.
Remote Select/Switch Inputs
Pinout for remote control of channel selection and front panel inhibit.
Status Outputs
Details the 25-way D-type connector for remote status tallies and pinouts.
Technical Specifications RB-SS10
Lists audio specs, connections, mains input, and fuse rating.
RB-DSS10 10 Way Stereo Digital Source Selector
Introduction
Overview of the RB-DSS10's function for selecting digital audio sources.
System Block Diagram
Illustrates the internal architecture and signal flow of the RB-DSS10.
Front Panel Indicators & Controls
Describes the power indicator, push buttons, headphone output, and volume controls.
Additional Modes
Explains alternate, latched, and protected alternate operation modes.
Rear Panel Connections and Operation
Details the AES/EBU, S/PDIF, and other rear panel connections.
Digital Audio Inputs & S/PDIF Output
Pinout for digital audio inputs and the S/PDIF output.
Remote Start I/O
Details the 25-way D-type connector for remote start signals.
Remote Select/Switch Inputs
Pinout for remote control of channel selection and inhibit functions.
Status Outputs
Pinout for the 25-way D-type connector providing remote status tallies.
Technical Specifications RB-DSS10
Lists audio specs, connections, mains input, and fuse rating.
RB-PMX4 10 Input, 4 Output Analogue Preset Mixer
Introduction
Introduces the RB-PMX4 as a high-performance preset mixer.
System Block Diagram
Visualizes the internal signal flow and component interconnections.
Rear Panel Connections and Operation
Details the XLR input and output connections on the rear panel.
Front Panel Controls
Explains the switch banks and input gain controls on the front panel.
Technical Specifications RB-PMX4
Lists audio specs, connections, mains input, and fuse rating.
RB-SSML1 Mic/Line Source Selector with Compressor Limiter
Introduction
Overview of the RB-SSML1 for mic/line selection, compression, and mixing.
System Block Diagram
Illustrates the internal signal paths and processing stages of the unit.
Rear Panel Connections
Details the various inputs, outputs, and controls on the rear panel.
Stereo Monitor Inputs
Describes the XLR connections for stereo monitor inputs.
Mic Input
Details the XLR connection for the microphone input.
Using Phantom Powered Microphones
Explains how to enable phantom power for microphones via DIP switch.
Stereo Line Input
Describes the XLR connections for stereo line inputs.
Front Panel Controls
Details the mic/line select, volume, compression, and metering controls.
Technical Specifications RB-SSML1
Lists audio specs, connections, mains input, and fuse rating.
RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
Introduction
Overview of the RB-MA1 and RB-MA2 microphone pre-amplifiers.
System Block Diagram
Visual representation of the single-channel amplifier's signal path.
Rear Panel Connections and Operation
Details the XLR connections for mic inputs and outputs.
Using Phantom Powered Microphones
Explains enabling phantom power and LF filter via switches.
Technical Specifications RB-MA1 & RB-MA2
Lists audio specs, connections, mains input, and fuse rating.
RB-DMA2 Dual Digital Microphone Amplifier
Introduction
Overview of the RB-DMA2 for converting mic signals to digital/analogue outputs.
System Block Diagram
Illustrates the unit's internal architecture and digital signal processing.
Front Panel Indicators & Controls
Details sync/power indicator, input level adjustments, and indicators.
Rear Panel Connections and Operation
Covers mic inputs, digital sync inputs, outputs, and rotary switches.
Technical Specifications RB-DMA2
Lists connections, audio specs, operational controls, and sample frequencies.
RB-ML2 Stereo Microphone & Line Level Limiter
Introduction
Overview of the RB-ML2 for limiting microphone and line level signals.
System Block Diagram
Visualizes the internal signal flow including limiter stages.
Rear Panel Connections and Operation
Details input/output selection, gain, and mode switches on the rear.
Mic / Line Inputs
Describes the XLR connections for mic/line inputs and gain control.
Using Phantom Powered Microphones
Explains phantom power and LF filter controls via switches.
Mic / Line Outputs
Details the XLR output connections and their levels.
Level Limiting
Explains stereo and dual mono limiting operation and threshold settings.
Technical Specifications RB-ML2
Lists audio specs, connections, mains input, and fuse rating.
RB-SL2 Twin Mono, or Stereo, Limiter
Introduction
Overview of the RB-SL2 as a stereo or twin mono VCA limiter.
System Block Diagram
Illustrates the internal signal path for the limiter.
Rear Panel Connections and Operation
Details input/output connections, gain control, and mode switch.
Technical Specifications RB-SL2
Lists audio specs, connections, mains input, and fuse rating.
RB-SM1 Single & RB-SM2 Dual Stereo To Mono Converter
Introduction
Overview of the RB-SM1/SM2 for converting stereo to mono signals.
System Block Diagram
Visualizes the summing amplifier and gain control for mono conversion.
Rear Panel Connections and Operation
Details stereo inputs and mono outputs on the rear panel.
Technical Specifications RB-SM1 & RB-SM2
Lists audio specs, connections, mains input, and fuse rating.
RB-LC3 3 Way Light/Power Controller
Introduction
Overview of the RB-LC3 for controlling mains indicators and lights.
System Block Diagram
Illustrates the unit's control of mains outputs via zero-cross point drivers.
Rear Panel Connections and Operation
Details telephone connections, control inputs, and configuration switches.
Switched Mains Outputs
Describes the IEC outputs and their ratings.
Telephone Connections
Explains the RJ11 connections for telephone line and handset.
Remote External Control Inputs
Pinout for the 15-way D-type connector for external control signals.
Configuration Switches
Details DIP switch settings for flash mode, latching, and momentary operation.
Technical Specifications RB-LC3
Lists connections, mains inputs, fuse rating, and physical specs.
RB-MM1 Mix Minus Generator
Introduction
Overview of the RB-MM1 for generating mix-minus feeds for phone-ins.
System Block Diagram
Visualizes the signal path for mix-minus generation and TBU output.
Front Panel Indicator
Describes the red LED indicating power status.
Rear Panel Connections and Operation
Details stereo inputs, telephone fader input, and null adjustments.
Technical Specifications RB-MM1
Lists audio specs, connections, mains input, and fuse rating.
RB-OA3 3 Studio On-Air Switcher
Introduction
Overview of the RB-OA3 for switching stereo pairs between studios.
System Block Diagram
Illustrates the unit's expansion capabilities and studio switching logic.
Rear Panel Connections and Operation
Details DIP switches for unit identity and boot-up modes.
Setting the Unit’s Identity Using The Mode ID DIP Switches
Explains configuring unit ID for master/slave operation.
Setting The Boot Up Mode
Configures the studio the unit defaults to on startup.
Configuring for Operation
Details single (MASTER) and expansion mode configurations.
RB-OA3R Remote Switch Panel For RB-OA3
Describes the RB-OA3R as a remote panel for controlling RB-OA3 functions.
RB-OA3C Expansion Unit Cable Kit For RB-OA3
Details the cable kit for expanding RB-OA3 units.
Connectors & Cabling
XLR 3 Pin Connectors
Pin details for male and female XLR connectors.
RCA Phono Connectors
Connection details for RCA phono connectors.
¼” Jack Connector
Connection details for ¼” jack connectors (mono/stereo).
D-Type Connectors
Pin details for 25, 15, and 9-way D-type connectors.
Glossary
1kHz
Definition of a 1kHz tone used for line-up and testing.
ADSL
Definition of Asynchronous Digital Subscriber Link.
AES/EBU
Definition of the professional digital audio standard.
Cleanfeed
Definition of a signal fed back to a caller, excluding caller's audio.
Codecs
Definition of devices for digital audio transfer over telecom lines.
DAT
Definition of Digital Audio Tape.
DI
Definition of Direct Inject for audio signal feeding.
DSP
Definition of Digital Signal Processing.
EIN
Definition of Equivalent Input Noise.
FM
Definition of Frequency Modulation.
FSD
Definition of Full Scale Digits, max digital value before clipping.
IEC
Definition of International Electrotechnical Commission standards.
ISDN
Definition of Integrated Services Digital Network.
kbps
Definition of Kilo-bits per second.
kHz
Definition of Kilo Hertz (samples per second).
LAN
Definition of Local Area Network.
LED
Definition of Light Emitting Diode.
Mix-minus
Definition of a signal with caller's voice removed.
Mono
Definition of monophonic sound reproduction.
MPEG
Definition of Motion Picture Experts Group for audio.
PFL
Definition of Pre Fade Listen (Cue) for auditioning audio.
RDS
Definition of Radio Data System.
RF
Definition of Radio Frequency.
RJ-45
Definition of connection standard for computer networking.
S/PDIF
Definition of Sony/Phillips Digital Interface.
TBU
Definition of Telephone Balance Unit.
THD
Definition of Total Harmonic Distortion.
U
Definition of rack-mount height measurement.
UPS
Definition of Uninterruptible Power Supply.
VHF
Definition of Very High Frequency.
VU
Definition of Voltage units.
XLR
Definition of professional audio connector.
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