LMM1S Line Input & Microphone Input Device Module by Bogen Communications

Model #LMM1S

Regular Price: $162.49

Special Price $85.30

Product Overview

  • Line mode for high impedance input

  • MIC Mode for low impedance input

  • Electronically balanced input

  • Gain/Trim control with Gain range switch

  • Bass and treble

  • 24V Phantom power

  • Audio Gating

  • Gating with threshold and duration adjustments

  • Fade back from mute

  • 4 levels of available priority

  • Can be muted from higher priority modules

  • Can mute lower priority modules

  • Removeable screw terminal input


The LMM1S Line Input & Microphone Input Device Module by Bogen Communications is a part of Bogen’s advanced plug-in modules provide a wide range of functions to support a variety of applications. These modules support different signal-source requirements, including the ability to interface to balanced and unbalanced high- and low-level inputs, stereo or mono, telco systems, and microphones.

The LMM1S module has a Line/MIC level input module. Input is via front-mounted screw terminals. It also has an internal, 24V DC phantom power supply that is enabled by a PCB jumper. The module has a gain control that will allow gain to be adjusted from 18dB to 60dB in MIC position, or from -2 dB to 40dB in LINE position.

It also has the ability to mute lower priority modules and be muted by higher priority modules. The module is able to assume any of four priority levels and has an internal gating circuit with controls for threshold and duration. The module has bass and treble controls with cut and boost of 10dB at 100 Hz and 10 kHz, respectively. The module’s output is also assignable to either or both of two mixing buses.


  • Gain: 18 dB to 60 dB (MIC) -2 dB to 40 dB (LINE)
  • Frequency Response: 20 Hz to 50 kHz (+0/-3 dB)
  • S/N (20 Hz - 20 kHz): -76 dBV @ 60 dB gain
  • Distortion: < 0.01%
  • Input Impedance: 15K LINE mode 2K MIC mode
  • Gate Threshold: 2 to 25mV @ min. gain
  • Gate Duration: 0.5s to 5s
  • Priority :Four levels
  • Tone: ± 10 dB @ 100 Hz & 10 kHz
  • CMRR: > 80 dB @ 1 kHz
  • Controls: Gain, Bass, Treble, Threshold, Duration
  • Connector: Pluggable Euro Screw Type
  • Dimensions: 1-3/8" W x 3-1/8" H x 3-1/2" D
  • Weight: 2.2 oz

Additional Information

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