BOGEN Microphone Input Module MIC1X User Manual
- June 6, 2024
- BOGEN
Table of Contents
MIC1X
Microphone Input
Module
Features
- Transformer-balanced
- Gain/Trim control
- Bass and treble
- Gating
- Gating threshold and duration adjustments
- Variable Threshold Limiter
- Limiter Activity LED
- 4 levels of available priority
- Can be muted from higher priority modules
- Can mute lower priority modules
© 2001 Bogen Communications, Inc.
54-2052-01C 0701
Specifications are subject to change without notice.
Module Installation
- Turn off all power to the unit.
- Make all necessary jumper selections.
- Position module in front of desired module bay opening, making sure that the module is right-side up.
- Slide module onto card guide rails. Make sure that both the top and bottom guides are engaged.
- Push the module into the bay until the faceplate contacts the unit’s chassis.
- Use the two screws included securing the module to the unit.
WARNING :
Turn off power to the unit and make all jumper selections before installing
the module in the unit.
Jumper Selections
- Priority Level
This module can respond to 4 different levels of priority. Priority 1 is the highest priority. It mutes modules with lower priorities and is never muted. Priority 2 can be muted by Priority 1 modules and mutes modules set for 3 or
- Priority 3 is muted by either Priority 1 or 2 modules and mutes Priority 4 modules. Priority 4 modules are muted by all higher priority modules.
- The number of priority levels available is determined by the amplifier the modules are used in.
Gating
Gating (turning off) of the module’s output when insufficient audio is present
at the input can be disabled. detection of audio for the purpose of muting
lower priority modules is always active regardless of jumper setting.
Phantom Power
24V phantom power can be supplied to condenser microphones when the jumper is
set to ON position. Leave OFF for dynamic mics.
Bus Assignment
This module can be set to operate so that the MIC signal can be sent to the
main unit’s A bus, B bus, or both buses.
Gate – Threshold (Thresh)
Controls the minimum necessary input signal level to turn the module’s output
on and apply a signal to the main unit’s buses. Clockwise rotation increases
the necessary signal level required to produce output and mute lower priority
modules.
Limiter (Limit)
Sets the signal level threshold at which the module will begin to limit the
level of its output signal. Clockwise rotation will allow more output signal
before limiting, counterclockwise rotation will allow less. The limiter
monitors the module’s output signal level, so increasing Gain will affect when
limiting takes place. An LED indicates when the Limiter is active.
Gain
Provides control over the level of the input signal that can be applied to the
internal signal buses of the main unit. Allows a way to balance the input
levels of various devices so that the main unit controls can be set to
relatively uniform or optimum levels.
Gate
– Duration (Dur)
Controls the amount of time the output and mute signal of the module remains
applied to the main unit’s buses after the input signal falls below the
required minimum signal level (set by the threshold control).
Bass & Treble (Treb)
Provides separate controls for Bass and Treble cut and boost. The Bass control
affects frequencies below 100 Hz and Treble affects frequencies above 8 kHz.
Clockwise rotation provides boost, counterclockwise rotation provides cut.
Center position provides no effect.
Connections
Uses standard female XLR to make connections to the module’s input. The input
is low-impedance, transformer-balanced for excellent noise and ground loop
immunity.
Block Diagram
References
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