In-ear monitoring system Sennheiser EW IEM G4-A — UHF 516–558 MHz, bodypack receiver, transmitter, OLED/LCD, 16 Ω, 4–6 h runtime

Sennheiser EW IEM G4-A is a professional in-ear monitoring system operating in the UHF band 516–558 MHz. The kit contains a transmitter and a bodypack receiver with OLED and LCD displays, headphone outputs for both 3.5 mm and 6.35 mm connectors, and a system impedance of 16 Ω. The set is intended for live sound and stage monitoring, with a wireless range up to 100 m and a runtime of approximately 4–6 hours.

Advantages

The system provides clear wireless monitoring within the 516–558 MHz UHF range and includes a limiter for audio protection. The transmitter offers XLR combo inputs and a BNC output for flexible professional connections. The compact bodypack receiver includes an LCD display and lightweight design for comfortable on-stage use.

Suitable for

• Live concerts and stage monitoring
• Broadcast and ENG environments
• Rehearsals and touring musicians
• Small to medium venue sound reinforcement

Key specifications

• Operating frequency range: 516–558 MHz (UHF)
• Runtime: 4–6 hours
• Maximum wireless range: up to 100 m
• Harmonic distortion (THD): ≤ 0.9%
• Audio limiter: included
• Headphone impedance: 16 Ω
• Headphone outputs: 3.5 mm (1) and 6.35 mm (1)
• Transmitter displays: OLED
• Receiver display: LCD
• Transmitter inputs: 2 x XLR combo
• Transmitter output connector: BNC
• Operating temperature range: −10 °C to 55 °C
• Transmitter dimensions (W×D×H): 21.2 cm × 20.2 cm × 4.3 cm
• Transmitter weight: 980 g
• Receiver type: Bodypack receiver
• Receiver dimensions (W×D×H): 6.4 cm × 2.4 cm × 8.2 cm
• Receiver weight: 125 g
• Battery quantity (receiver): 2

How to use

Install batteries in the bodypack receiver and power on both transmitter and receiver. Connect stage sources to the transmitter using the XLR combo inputs, set the required gain and enable the limiter if needed. Tune transmitter and receiver to the same frequency within the 516–558 MHz range, pair the units and connect in-ear monitors to the receiver via the 3.5 mm output (or use the 6.35 mm jack where applicable). Position the transmitter with access to its BNC antenna and keep line-of-sight where possible for optimal range.

Recommendations

For stable performance, avoid contact with water, operate within the specified temperature range, and choose channels clear of local RF interference. Use quality in-ear headphones matched to 16 Ω impedance and check battery levels before performances.