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 11 - RB-PMX4 10 Input, 4 Output Analogue Preset Mixer
Redbox User Handbook 11-1
11. RB-PMX4 10 Input, 4 Output Analogue
Preset Mixer
Fig 11-1: RB-PMX4 Front Panel
11.1. Introduction
The RB-PMX4 is a high performance 10 mono input to 4 mono output preset mixer.
Each of the four outputs has a 10 way DIP switch associated with it to select which of
the 10 inputs are routed to it. So, by altering the DIP switches, any of the input
sources can be mixed to any of the outputs. The DIP switches are enclosed by a
screw-on cover on the front panel so that the settings can not be accidentally changed
for secure applications.
The RB-PMX4 has been designed for situations where a small mixer is needed for
installations where it will be configured and then only altered occasionally, or never
altered. Uses for this product are numerous including a four bus mini-mixer, a 4 zone
mixer for pubs and clubs, a multiple clean-feed generator and a quad stereo to mono
converter to name a few.
The XLR-3 inputs and outputs are electronically balanced and can be wired
unbalanced. Each output is individually buffered so that a short circuit on one won't
affect the others. Each input has its own gain control which is a pre-set potentiometer
accessible through the front panel. This provides gain adjustment of -8dB to 18db.
This is useful for normalizing consumer and professional signals to give outputs of -
15dBu and 0dBu respectively.
The front panel is held on by 2 off M3 x 6 stainless steel dome-head screws and can
be removed using a 2mm AF hex key (allen key). Each 10-way switch represents an
output and the individual switches represent the inputs that will be mixed to that
output. Switches are in the ON (down) position to be mixed and the OFF (up) position
for off.
The XLR-3 outputs are electronically balanced and can be wired unbalanced. Each
output is individually buffered so that a short circuit on one won’t affect the others.
An LED power indicator on the front panel displays the power supply connection.
RB-PMX4
PRE-SET MIXER
INPUT LEVEL
12 109876543