Sennheiser EK IEM G4-A1 - Compact Stereo Receiver, 470–516 MHz

The Sennheiser EK IEM G4-A1 is a professional compact stereo receiver designed for in-ear monitoring applications. Operating in the 470–516 MHz frequency range (A1 band), it delivers reliable, high-quality audio transmission with up to 42 MHz switching bandwidth and 1680 tunable frequencies. The robust metal housing ensures durability on stage or in rental environments.

Advantages

• Wide switching bandwidth (up to 42 MHz) for flexible frequency selection.
• HDX compander system for excellent audio quality with low distortion.
• Infrared (IR) synchronization for quick and easy setup with compatible transmitters.
• Backlit LCD display for clear visibility in low-light conditions.
• Long battery life of up to 4-6 hours using standard AA batteries or optional BA 2015 accupack.

Suitable for

• Professional musicians and performers requiring wireless in-ear monitoring.
• Sound engineers and rental companies needing a reliable, portable receiver.
• Applications in live sound, broadcast, and theater.

Key specifications

• Product Type: Compact Stereo Receiver
• Frequency Band: A1 (470–516 MHz)
• Switching Bandwidth: Up to 42 MHz
• Number of Frequencies: 1680 tunable frequencies
• Frequency Presets: 20 banks with 16 factory presets, 6 user-programmable banks with 16 channels
• Audio Frequency Response: 25 Hz – 15 kHz
• Signal-to-Noise Ratio: > 90 dB (A-weighted)
• Total Harmonic Distortion (THD): < 0.9%
• Compander System: HDX
• Headphone Output Power: 100 mW at 32 Ohm
• Headphone Output Connector: 3.5 mm stereo jack
• Power Supply: 2x AA batteries or BA 2015 accupack
• Battery Life: Up to 4-6 hours (typical)
• Display: Backlit LCD
• Housing Material: Robust metal housing
• Synchronization: Infrared (IR)
• Antenna: Integrated
• Compatibility: Sennheiser G4 IEM transmitters (e.g., SR IEM G4)
• Squelch: Adjustable

Recommendations

For optimal performance, pair the EK IEM G4-A1 with a compatible Sennheiser G4 IEM transmitter such as the SR IEM G4. Use the IR sync function for quick frequency setup. Always ensure batteries are fully charged or use the optional BA 2015 accupack for extended use.