In-ear stereo miniature receiver Sennheiser EK IEM G4-A, 516–558 MHz

The Sennheiser EK IEM G4-A is an in-ear stereo miniature receiver that operates in the 516–558 MHz frequency band. Intended for personal monitoring, this compact receiver delivers stereo audio to in-ear monitoring systems and integrates with wireless monitoring setups used by stage musicians, broadcasters, and mobile engineers. The unit is designed for reliable reception, ergonomic wearability and straightforward integration into Sennheiser Evolution Wireless G4 monitoring systems.

Advantages

The receiver provides stereo monitoring with a compact housing that minimizes weight and bulk when worn on the body. Operating within the 516–558 MHz range, it supports stable RF reception in its band and is compatible with G4-series transmitters and monitoring infrastructure. Its form factor and audio output are focused on delivering accurate stage monitoring with low-latency performance and straightforward, user-friendly operation for live and mobile use.

Suitable for

When it may not be suitable

This receiver is optimized for use as part of Sennheiser Evolution Wireless G4 monitoring systems and for operation within the specified 516–558 MHz band; it may not be suitable where different frequency ranges are required or where integrations with non-G4 wireless platforms are needed. For users requiring multi-channel rack-mounted monitoring receivers, built-in recording, or advanced DSP features, a larger or differently featured product may be more appropriate.

Key specifications

How to use

Pair the EK IEM G4-A with a compatible G4-series transmitter or monitoring beltpack using the matching frequency and sync method specified by the system. Mount the miniature receiver on the performer’s belt or clothing and connect suitable in-ear earphones to the audio output. Adjust the receiver and transmitter frequency settings to avoid interference, then set the monitoring level on the transmitter or mixer to achieve the desired listening volume. Follow standard RF coordination procedures and local regulations when selecting operating frequencies.

What to consider before purchase

Recommendations

For reliable performance, perform RF scanning and coordination prior to each event, use quality in-ear monitors matched to the EK IEM G4-A output, and maintain clear line-of-sight where possible between transmitter and receiver. Regularly inspect antenna connections and battery contacts to ensure consistent reception during live use.