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Lectrosonics UM400A

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.


100 mW output power
Servo bias input preamp
DSP based pilot-tone signal
Circulator/Isolator output stage
Adjustable low frequency roll-off
256 Synthesized UHF frequencies
DSP emulations for analog compatibility
DSP controlled dual envelope input limiter