Designed for professional live sound: Robust all-in-one wireless monitoring system for in-ear applications.
Solid pocket-sized receivers and reliable IE 4 control in-ear headphones deliver crystal-clear sound across the entire frequency spectrum for everyday stage use
Half-rack stereo transmitter in all-metal housing with intuitive OLED display for full control
Simple 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 Frequency band up to 42 MHz with 1680 selectable frequencies, fully adjustable within a stable UHF range
Transmission range: up to 100 meters / 300 feet
High RF output power (up to 50 mW) depending on national regulations
Technical characteristics
SR IEM G4
Frequency range
A1: 470 - 516 MHz
A: 516 - 558 MHz
AS: 520 - 558 MHz
GB: 606 - 648 MHz
G: 566 - 608 MHz
B: 626 - 668 MHz
C: 734 - 776 MHz
D: 780 - 822 MHz
E: 823 - 865 MHz
Dimensions
Env. 202 x 212 x 43 mm
Compressor-expander
Sennheiser HDX
Total Harmonic Distortion (THD)
90 dB
RF output power
Switchable: Low: typically 10mW, Standard: typically 30mW, High: typically 50mW
Switchable bandwidth
up to 42 MHz
Maximum frequency excursion
±48 kHz
Nominal excursion
±24 kHz
Modulation
Wideband FM stereo (MPX pilot tone)
Power supply
12 V CC
Electric consumption
max. 350 mA
Maximum input voltage
+22 dBu
Transmission frequency
1680 frequencies max., adjustable in 25kHz increments, 20 frequency banks with 16 preset channels each, no intermodulation, 6 frequency banks with up to 16 programmable channels
Low frequency response
25 Hz to 15 kHz
Temperature range
from -10 °C to +55 °C
Frequency stability
±10 ppm
BNC connector, 50Ω
EC IEM G4
Dimensions
Approx. 82 x 64 x 24 mm
Compressor-expander
Sennheiser HDX
Total Harmonic Distortion (THD)
? 0.9 %
Weight
(with batteries) approx. 125 g
Signal-to-noise ratio (SNR)
about 90 dBA
Switchable bandwidth
up to 42 MHz
Maximum frequency excursion
±48 kHz
Nominal excursion
±24 kHz
Autonomy
approx. 4 to 6 hours (depending on sound volume)
Modulation
Wideband FM
Power supply
2 AA batteries, 1.5 V or BA 2015 accumulator
Electric consumption
for rated voltage?: approx. 140?mA
with transmitter off: ? 25 µA
Selectivity between adjacent channels
Generally? 65 dB
Power at audio output
2 x 100?mW at 32??
Intermodulation attenuation
Generally? 70 dB
Limiter
?18?dB to ?6?dB, adjustable in 6?dB increments, can be turned off
Power on
3 V battery / 2.4 V rechargeable battery
Reception frequency
Max. 1680 receive frequencies, adjustable in 25kHz increments, 20 frequency banks each with 16 preset channels, no intermodulation, 6 frequency banks with up to 16 programmable channels
RF Sensitivity
