Sennheiser EW IEM G4 Band A (516-558 MHz) Wireless IEM System + Apache Case

Sennheiser EW IEM G4 (Band A, 516–558 MHz) wireless stereo in-ear monitoring system in excellent condition. Purchased in January 2025 and has seen very little use or transport.

Also included is an Apache 2800 protective carrying case with custom-fitted foam, which is not normally included with this Sennheiser system.

All original physical accessories are included. The original printed quick guide, safety guide, and manufacturer declaration paperwork are not included, but digital versions are available from Sennheiser's official website.

What's Included

• SR IEM G4 stereo transmitter
• EK IEM G4 stereo bodypack receiver
• Sennheiser IE 4 in-ear headphones
• 2 AA batteries
• Rod antenna
• GA 3 rackmount hardware set
• Original power supply
• Apache 2800 protective carrying case with custom-fitted foam (additional accessory)

Features

• Professional UHF wireless stereo in-ear monitoring system
• Rugged metal transmitter housing with OLED display
• Compact bodypack receiver with adaptive diversity reception
• Infrared synchronization between transmitter and receiver
• Up to 16 compatible preset channels per frequency bank
• Up to 1,680 selectable frequencies in 25 kHz increments
• Up to 42 MHz switching bandwidth
• Sennheiser HDX compander system
• Adjustable RF transmission power up to 50 mW
• Compatible with Sennheiser Wireless Systems Manager (WSM) software
• Approximate transmission range of up to 300 feet under suitable conditions

Technical Specifications

SR IEM G4 Stereo Transmitter

• Frequency range: Band A, 516–558 MHz
• Modulation: Wideband FM stereo with MPX pilot tone
• Switching bandwidth: Up to 42 MHz
• Selectable frequencies: Up to 1,680 in 25 kHz steps
• Frequency banks: 20 preset banks and 6 user-programmable banks
• Channels per bank: Up to 16
• RF output power: Selectable 10, 30, or 50 mW
• Frequency stability: ±10 ppm
• Nominal / peak deviation: ±24 kHz / ±48 kHz
• Audio frequency response: 25 Hz–15 kHz
• Compander: Sennheiser HDX
• Signal-to-noise ratio: Greater than 90 dB
• Total harmonic distortion: 0.9% or less
• Audio inputs: Two balanced XLR / 1/4" combo connectors
• Audio outputs: Balanced 1/4" loop outputs
• Antenna connection: BNC, 50 ohms
• Maximum audio input level: +22 dBu
• Power supply: 12V DC
• Maximum current consumption: 350 mA
• Dimensions: Approximately 202 x 212 x 43 mm
• Weight: Approximately 980 g

EK IEM G4 Stereo Bodypack Receiver

• Frequency range: Band A, 516–558 MHz
• Modulation: Wideband FM
• Receiver design: Adaptive diversity
• Switching bandwidth: Up to 42 MHz
• Selectable frequencies: Up to 1,680 in 25 kHz steps
• Frequency banks: 20 preset banks and 6 user-programmable banks
• Channels per bank: Up to 16
• Compander: Sennheiser HDX
• Signal-to-noise ratio: Approximately 90 dB
• Total harmonic distortion: 0.9% or less
• Audio output power: 2 x 100 mW at 32 ohms
• Adjustable limiter: -18 dB to -6 dB, or off
• High-frequency boost: +8 dB at 8 kHz
• Adjustable squelch: 5–25 dBµV
• Power: Two AA batteries or optional BA 2015 rechargeable battery pack
• Typical battery runtime: Approximately 4–6 hours, depending on volume
• Dimensions: Approximately 82 x 64 x 24 mm
• Weight: Approximately 125 g including batteries

Frequency Band: A (516–558 MHz)

Country of Manufacture: Romania

Please see the actual photos for the condition of the equipment, protective case, and included accessories.