Sennheiser EW IEM G4-TWIN-A1 Wireless Monitoring System

Rugged, All-in-One Design - The Sennheiser EW IEM G4-TWIN-A1 Wireless Monitoring System

Frequency Range: 470 - 516 MHz (A1)

Get Full control over your performance and your direct link, everywhere, everyday. The G4 In-Ear Monitoring Sets make your gig an extraordinary experience not just for your audience, but also for you. The robust bodypack receiver and reliable in-ear monitoring IE 4 headphones delivering clarity along the whole frequency spectrum for daily use on stage.

• Engineered for professional live sound: Rugged all-in-one wireless monitoring system for in-ear applications.
• Robust bodypack receiver and reliable in-ear monitoring IE 4 headphones delivering clarity along the whole frequency spectrum for daily use on stage
• Half-rack stereo transmitter in a full-metal housing with OLED display for full control
• Easy and flexible wireless synchronization between transmitter and receiver via infrared/light;
• Compatible with Sennheiser WSM control software for flexible frequency allocation
• Up to 16 compatible channels
• Up to 42 MHz bandwidth with 1680 selectable frequencies, fully tunable in a stable UHF range
• Transmission Range: up to 100 meters (300 feet)
• High RF output power (up to 50 mW) depending on country regulations

SPECIFICATIONS

SR IEM G4

• Dimensions: Approx. 202 x 212 x 43 mm
• Compander: Sennheiser HDX
• THD, total harmonic distortion: <0.9 %
• Weight: Approx. 980 g
• Audio Input: 2x XLR-3 1/4-inch (6.3 mm) jack combo socket, electronically balanced
• Audio Output: 1/4-inch (6.3 mm) stereo jack socket, balanced
• Signal-to-Noise Ratio: >90 dB
• RF Output Power: switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
• Switching Bandwidth: Up to 42 MHz
• Peak Deviation: ±48 kHz
• Nominal Deviation: ±24 kHz
• Modulation: Wideband FM stereo (MPX pilot tone)
• Power Supply: 12 V DC
• Current Consumption: Max. 350 mA
• Max. Input Voltage: +22 dBu
• AF Frequency Response: 25 Hz to 15 kHz
• Temperature Range: -10 °C to +55 °C
• Frequency Stability: ±10 ppm

EK IEM G4

• Dimensions: Approx. 82 x 64 x 24 mm
• Compander: Sennheiser HDX
• THD, total harmonic distortion: ≤ 0.9 %
• Weight (incl. batteries) approx. 125 g
• Signal-to-noise ratio: Approx. 90 dBA
• Switching Bandwidth: Up to 42 MHz
• Peak Deviation: ±48 kHz
• Nominal Deviation: ±24 kHz
• Operating Time: Approx. 4 to 6 hours (depending on volume level)
• Modulation: Wideband FM
• Power Supply: 2 AA batteries, 1.5 V or BA 2015 accupack
• Current Consumption at nominal voltage: approx. 140 mA with transmitter switched off: ≤ 25 µA
• Adjacent Channel Rejection: Typically ≥ 65 dB
• Audio-Output-Power: 2 x 100 mW at 32 Ω
• Intermodulation Attenuation: Typically ≥ 70 dB
• Limiter: –18 dB to –6 dB, adjustable in steps of 6 dB, can be switched off
• Powering: 3 V battery, 2.4 V rechargeable battery
• RF Sensitivity: < 4 μV, typ. 1.6 μV for 52 dBA rms S/N
• Squelch: 5 to 25 dBµV, adjustable in steps of 2 dB
• Bass Boost: +8 dB at 8 kHz
• Temperature Range: -10 °C to +55 °C
• Receiver Principle: Adaptive diversity
• Blocking: ≥ 80 dB

We are Musictoner Musictoner

Since 1958, Chuck Levin’s Musictoner has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.