Rb-Ml2 Stereo Microphone & Line Level Limiter; Introduction; Fig 7-1: Rb-Ml2 Front Panel - Sonifex Redbox RB-SS10 User Handbook Manual

7
MICROPHONE AMPLIFIERS
& LI MI TE RS
7 RB-ML2 Stereo Microphone & Line Level Limiter

Introduction

Fig 7-1: RB-ML2 Front Panel.

The RB-ML2 is a stereo microphone and line level limiter. The unit is mainly used where
assistance with level control is required, for protection of mixer inputs and to prevent
distortion. The RB-ML2 is ideal for news-booths, and the input to PC work stations, it
provides an economical level control solution.
The RB-ML2 has two electronically balanced XLR-3 inputs, which are routed to a line
amplifier, or microphone amplifier, via a rear push-button. The microphone amplifiers have
independent pre-set gain controls, and DIP switches for a high pass filter (low frequency
roll-off at 125Hz) and phantom power to provide +48V to the connected microphones.
The outputs of these amplifiers are passed through a VCA limiter circuit that can operate
jointly on the signals in stereo mode, or independently in dual mono mode. The rear panel
mode switch changes the unit from dual mono to stereo.
The two XLR-3 electronically balanced outputs can be set to either line or mic output levels
via a push button. This allows the RB-ML2 to be used in line with a line or mic input on a
mixer, or similar equipment
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Redbox User Handbook No 3