Lectrosonics UM400a

Product Information
Overview The UM400a implements the latest Digital Hybrid Wireless technology in a classic Lectrosonics belt-pack transmitter. A 5-pin input jack provides taps for low impedance dynamic mics, electret lavalier mics with positive or negative bias and line level inputs. Input gain is adjustable over a 43 DB range to perfectly match the audio input level for optimum modulation, minimum distortion and maximum signal to noise ratio. Input levels are accurately indicated by two LEDs on the control panel.

The innovative servo bias input on the standard 5-pin connector provides a programmable, regulated voltage to accommodate a wide variety of electret microphones.


  • 256 synthesized UHF frequencies

  • 100 mW output power

  • DSP controlled dual envelope input limiter

  • DSP emulations for analog compatibility

  • Servo bias input preamp

  • DSP based pilot-tone signal

  • Circulator/Isolator output stage

  • Adjustable low frequency roll-off

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Brand Lectrosonics
Model UM400a
Part Number UM400A
Product Category Wireless Transmitters
Unit of Measure EACH
Shipping Weight 0.50 lbs.
Lectrosonics Performance Audio is an authorized Lectrosonics dealer.
Well respected within the film, broadcast, and theater technical communities since 1971, Lectrosonics wireless microphone systems and audio processing products are used daily in mission-critical applications by audio engineers familiar with the company's dedication to quality, customer service, and innovation.
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