Lectrosonics M2R

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Lectrosonics M2R digital stereo IEM receiver (470-608 MHz)
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The Duet digital wireless monitor system consists of the M2T dual-stereo half-rack transmitter and M2R diversity belt pack receiver. The Duet covers the UHF frequencies of 470-614 MHz in a single range, uses digital modulation for transmission, and can accept analog or Dante digital inputs. The Duet system can be considered a "wireless IEM" or a deluxe IFB product, designed and developed with professional touring, installation, theater, filmmaking and broadcast customers in mind that require high definition audio in their ears. With 24 bit digital audio, low latency, Dante inputs and a compact, lightweight, diversity bodypack unit, the Duet system should please even the most demanding users, both on and behind the stage.

The M2R digital IEM receiver is a compact, rugged body-worn unit providing studio-grade sound quality for performers or any professionals needing to monitor detailed audio wirelessly. The M2R employs advanced antenna diversity switching during digital packet headers for seamless audio. The 24-bit digital audio stream guarantees high resolution sound quality with wide dynamic range, low noise floor, and solid stereo image. The headphone jack is fed from a high-quality stereo amplifier with 250 mW available to drive even inefficient headphones or earphones to sufficient levels for stage performance or other noisy environments. The receiver can select from stereo, mono from left or right channels only, or mono from both channels, giving the unit flexibility in terms of application as an IEM or IFB receiver. The M2R features a user-friendly interface with a high-resolution, backlit, color LCD and membrane switches. Housings and panels are machined aluminum with Eboni finishes with laser etched marking for durability, yet they are lightweight and sleek in order to be comfortable on the artist's body. The M2R runs on two AA batteries.

Both the M2R beltpack receiver and the M2T half-rack transmitter units have 2-way IR sync, so scan data from the receiver can be sent to the transmitter and thus onto the Ethernet network for use by Lectrosonics' Wireless Designer software for frequency planning and coordination purposes. Additionally, the system includes a Flex List mode, where a number of names and frequencies can be stored in the receiver. This way, a monitor engineer or production manager can quickly find and listen to any of the talents' mixes on the stage or in the studio.


  • IEM (Wireless Monitor) receiver with digital RF
  • IR (infrared) port for fast setup
  • high resolution, color LCD
  • stereo or mono operation
  • low latency of 1.4 ms with analog inputs
  • operating spectrum: 470.100 607.950 MHz
  • modulation type: 8PSK with forward error correction occupied
  • latency: (overall system)
  • digital source: 1.0 ms plus Dante network
  • analog source: <1.4 ms
  • frequency response: 10 Hz-12 KHz, +0, -3dB
  • THD+N: 0.15% (1kHz @ 10 dBFS)
  • dynamic range: >95 dB weighted
  • adjacent channel isolation >85dB
  • diversity type: switched antenna phase, during packet headers
  • audio output: 3.5 mm stereo jack
  • power requirements: 2 x AA batteries (3.0V)
  • battery life: 7 hours, (2) Lithium AA
  • power consumption: 1 W
  • dimensions: 120 mm (with knob)
  • width: 60.325 mm
  • depth: 15.875 mm
  • weight: 259 grams (with batteries)
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