The M2Ra Digital IEM/IFB Receiver from Lectrosonics is a wireless receiver designed to provide reliable high-quality wireless monitoring for professional musicians, presenters, and performers in live stage, theater, and broadcast applications. This version of the receiver operates in the A1B1 UHF frequency band, which ranges from 470 to 614 MHz depending on your locale. The M2Ra is compatible with the M2T wireless transmitter and features IFB, D2, and HDM compatibility modes for use with additional Lectrosonics transmitter models.
The receiver employs sophisticated antenna diversity switching to ensure reliable reception without dropouts or interference. It also employs 2-way IR sync, sending data from the receiver to the M2T transmitter and allowing frequency planning and coordination to be done quickly and confidently with on-site RF information via Lectrosonics Wireless Designer Software.
The 24-bit digital audio stream delivers high-resolution sound quality with a wide dynamic range, low noise floor, and solid stereo imaging. The 3.5mm headphone jack is fed from a high-quality 250 mW stereo amplifier, allowing it to drive a wide variety of headphones, earphones, and in-ear monitors.
Users can select from stereo, mono from the left or right channel, or mono from both channels, allowing the receiver to quickly adapt to different applications. An intuitive mixing interface and high-resolution color LCD provide performing artists and monitor engineers with a comfortable and confident user experience. The M2Ra runs on two AA lithium or high-capacity NiMH rechargeable batteries for up to 7 hours.
An Updated Version of the M2R
The M2Ra updates the original M2R with some improvements and upgrades
- Improved IP3 performance
- P48 protection on headphone jack
- Encrypted (256-bit encryption AES 256-CTR) and nonencrypted operation under one firmware version
- IFB compatibility mode
- Addition of D2 and HDM compatibility modes
- Reorganized menu structure
- Black anodized finish for a lower visual profile
At a Glance
- IEM (wireless monitor) receiver with digital RF
- IR (infrared) port for fast setup
- High-resolution color LCD
- Stereo or mono operation
- Low latency of 1.6 ms with analog inputs
- Flexlist for recalling IFB or IEM feeds by name
Lectrosonics M2Ra Specs
| Frequency | 470.1 to 607.950 MHz |
| Modulation Type | 8 PSK with Forward Error Correction |
| Latency | Digital Source: 1.0 ms Analog Source: <1.6 ms |
| Audio Output | 3.5mm Stereo Jack |
| Frequency Response | 10 Hz to 12 kHz, -3 dB |
| Total Harmonic Distortion (THD) + N | 0.15% (1 kHz at -10 dBFS) |
| Dynamic Range | >95 dB (Weighted) |
| Adjacent Channel Isolation | >85 dB |
| Diversity | Type: Switched Antenna |
| Earphone | 250 mW at 32 Ohms |
| Power Requirements | 2 x AA Batteries (3.0 V) |
| Battery Life | 2 x Lithium AA (7 hours) |
| Power Consumption | 1 W |
| Dimensions | 3.0 x 2.4 x 0.625" / 7.62 x 6.03 x 1.59 cm |
| Weight | 9.14 oz / 259 g with Batteries |
Packaging Info
| Package Weight | 0.97 lb |
| Box Dimensions (LxWxH) | 13.1 x 5.8 x 3.4" |
In the Box
- Lectrosonics M2Ra Digital IEM/IFB Receiver (A1B1: 470 to 614 MHz)
- 2 x Case Insulating Pad
- 2 x AA Lithium Battery
- Allen Hex Key
- 2-Year Manufacturer Warranty
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