Full control over your performance – everywhere, every day. The G4 In-Ear Monitoring Sets make your gig an extraordinary experience – not just for your audience, but also for you!

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

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

SR IEM G4
Frequency range
A: 516 - 558 MHz
A1: 470 - 516 MHz
AS: 520 - 558 MHz
B: 626 - 668 MHz
C: 734 - 776 MHz
E: 823 - 865 MHz
G: 566 - 608 MHz
GB: 606 - 648 MHz
D: 780 - 822 MHz

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-3/¼" (6.3 mm) jack combo socket, electronically balanced

Audio output
¼" (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

Transmission frequency
Max. 1680 frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 16 factory-preset channels, no intermodulation, 6 frequency banks with up to 16 programmable channels

AF frequency response
25 Hz to 15 kHz

Temperature Range
-10 °C to +55 °C

Frequency stability
±10 ppm

Antenna Output
BNC socket, 50 Ω
Frequency range
748.3 MHz - 757.7 MHz

Frequency range
Sr iem g4: D: 780 - 822 MHz
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

Receiving frequency
Max. 1680 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 16 factory-preset channels, no intermodulation, 6 frequency banks with up to 16 programmable channels

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
What's in the Box
SR IEM G4 stereo transmitter
EK IEM G4 stereo receiver
IE 4 earphones
2 AA batteries
rod antenna
GA 3 rackmount set
quick guide
safety guide
manufacturer declaration sheet
power supply