Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones (A 516 to 558 MHz)

The Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones

The Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones is a professional in-ear monitoring system designed for live stage, theater, and rehearsal applications. Operating in the A band (516–558 MHz), it delivers reliable stereo RF monitoring, adaptive diversity reception, and up to 16 compatible channels for clear and consistent on-stage audio.

The Sennheiser EK IEM G4 Stereo Bodypack Receiver is part of the Evolution Wireless G4 in-ear monitoring series, engineered for performers who require precise, reliable monitoring in live sound environments. Designed for use with compatible Sennheiser IEM transmitters, this system ensures stable RF performance and high-quality stereo audio reproduction for stage, theater, worship, and rehearsal applications.

Operating within the A frequency band (516–558 MHz), the receiver offers 1680 selectable frequencies arranged across 20 fixed frequency banks and 6 user-programmable banks, each supporting up to 16 channels. This flexible architecture allows up to 16 compatible channels to operate simultaneously while minimizing intermodulation issues and maintaining clean RF performance.

The adaptive diversity reception system enhances signal stability by reducing dropouts and interference, ensuring reliable monitoring throughout performances. A backlit, menu-driven display provides real-time information including frequency, RF and AF levels, battery status, and channel/bank selection, with an auto-lock function to prevent accidental setting changes during use.

The EK IEM G4 features Sennheiser’s HDX compander system for clear, dynamic audio reproduction with low noise and high intelligibility. Additional sound-shaping tools include a switchable high-boost and adjustable limiter, allowing users to tailor monitoring levels for different performance environments.

Housed in a rugged metal bodypack, the receiver is designed for durability in demanding stage conditions. It operates using two AA batteries or an optional Sennheiser BA 2015 rechargeable accupack, delivering 4 to 6 hours of operating time depending on usage. The included IE 4 earphones provide balanced, detailed monitoring sound suitable for professional performance use.

Key Features:

• Professional stereo in-ear monitoring bodypack receiver
• Frequency range: 516–558 MHz (A Band)
• Includes Sennheiser IE 4 earphones
• Adaptive diversity reception for stable RF performance
• Up to 16 compatible channels in one system
• 1680 selectable frequencies across UHF range
• 20 fixed frequency banks + 6 user-programmable banks
• Switchable high-boost and adjustable limiter
• HDX compander for clear, low-noise audio
• Menu-driven backlit display with RF/AF monitoring
• Auto-lock function prevents accidental changes
• Rugged metal housing for stage durability
• Up to 300 ft (100 m) operating range

• 1 × Sennheiser EK IEM G4 Stereo Bodypack Receiver
• 1 × Pair of Sennheiser IE 4 Earphones
• User documentation

• Receiver Type: Adaptive diversity bodypack receiver
• RF Frequency Band: A: 516–558 MHz
• Switching Bandwidth: Up to 42 MHz
• Frequencies: 1680 selectable (25 kHz steps)
• Frequency Banks: 20 fixed + 6 user banks
• Channels per Bank: Up to 16
• Audio Output Power: 2 × 100 mW @ 32 Ω
• THD: ≤ 0.9%
• Signal-to-Noise Ratio: ~90 dBA
• Compander: Sennheiser HDX
• Limiter: -18 dB to -6 dB (adjustable or off)
• Squelch Range: 5 to 25 dBµV
• Power Supply: 2 × AA batteries or BA 2015 accupack
• Battery Life: ~4–6 hours
• Operating Temperature: -10 to 55°C / 14 to 131°F
• Dimensions: 82 × 64 × 24 mm
• Weight: 125 g