Lectrosonics M2Ra Duet Digital IEM/IFB Receiver

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This unit is the M2Ra-A1B1 (for North America) with a frequency range of 470.100 - 607.950 MHz.

The Lectrosonics M2Ra 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 M2Ra employs advanced antenna diversity switching during digital packet headers for seamless audio. The receiver uses digital modulation and covers UHF frequencies from 470.100 to 607.950 MHz (North America).

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. An intuitive interface and high resolution, color LCD on the unit provide performing artists and audio professionals alike with a comfortable and confident user experience.

The M2Ra employs 2-way IR sync, so scan data from the receiver can be sent to a transmitter and thus onto Wireless Designer Software, via USB or Ethernet. This way, frequency planning and coordination can be done quickly and confidently with on-site RF information.

Housings and panels are made of machined aluminum with black anodized finish with laser etched marking for durability, yet they are lightweight and sleek in order to be comfortable on the talent's body. The M2Ra features a user-friendly interface with a high-resolution, backlit, color LCD and membrane switches. The M2Ra runs for 7 hours on two lithium AA batteries.

Lectrosonics M2Ra Receiver - Features:

• 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
• Compatible with Lectrosonics IFB transmitters in IFB mode
• Phantom power protection on the headphone jack (good for using this model as a camera hop receiver)
• Improved IFB analog compatibility mode (sounds better than the earliear M2R version)
• Beefed up internal power supply (allows for headphones with impedances as low as 9 ohms to be used)
• Improved menu structure (similar to DCR822 & DSQD)
• Decreased overall RF noise floor and less RF gain in the front end (reduces overload from strong interference sources and out-of-band signals)
• Increased IP3 and 1dB RF compression points (improves handling of high signal levels)
• Black anodized finish for lower visual profile
• Available via firmware update: D2 and HDM compatibility modes added (can be used as a very small portable receiver or portable monitor device, with mono digital transmitters)

_{* italics = improvements from previous M2R version}

• Operating Spectrum: 470.100 - 607.950 MHz
• Modulation Type: 8PSK with Forward Error Correction, spread spectrum
• Occupied Bandwidth: 200 KHz
• Latency:
  • Digital Source: 1.0 ms
  • Analog Source: < 1.4 ms
• Selectable Audio Inputs: 4 analog audio ins or Dante
• Audio Performance:
  • Frequency Response: 20 Hz - 15 KHz, - 3 dB
  • THD+N: 0.15% (1 kHz @ -10 dBFS)
  • Dynamic Range: > 95 dB weighted
  • Adjacent Channel Isolation: > 85 dB
• Diversity Type: Switched antenna
• Audio Output: Earphone: 250 mW at 32 Ohms
• Power Requirements: (2) AA batteries (3 V)
• Battery Life: 7 hours; (2) Lithium AA
• Power Consumption: 1 W
• Dimensions (H x W x D): 3.0 x 2.375 x .625 in | 120 x 60.325 x 15.875 mm
• Weight: 9.14 oz | 259 g, with batteries