Sennheiser ew IEM G4-twin TWIN wireless ‘in-ear’ monitoring system

General Description

Evolution wireless has been the industry standard for flexibility, ease of use and reliability for wireless systems for years and the new and improved G4 system looks to continue this trend.

Hear better, perform better. Sennheiser monitoring systems are trusted by professionals worldwide and now are better than ever. Featuring an adaptive-diversity receiver, the twin receiver pack uses the headphone cable as a secondary antenna for flawless reception. Ear-canal phones, with various ear-fitting pads for an individual fit, reproduce the signal from the adaptive diversity receiver precisely and faithfully. Pass-through outputs allow easy splitting of the input signal to travel to other devices. Lastly, the entire set can be monitored and remotely controlled with Sennheiser’s “Wireless Systems Manager” software due to the built-in Ethernet port on the stereo transmitter.

The wireless Sennheiser G4 range is available in the following frequency ranges:

A: 516 - 558 MHz
G: 566 - 608 MHz
GB: 606 - 648 MHz
B: 626 - 668 MHz
C: 734 - 776 MHz
D: 780 - 822 MHz
E: 823 - 865 MHz

Only Range GB (channel 38) and Range E (channel 70) systems are available for purchase on the online shop. The other frequency ranges are available by special request for fixed site licence applications. Range GB includes Channel 38 which is the most reliable solution for portable wireless microphone systems. (Please Note. Channel 38 use requires a licence. For more information please contact us or visit here). Range E includes Channel 70 which is for legal licence-free use in the UK and Europe.

The Sennheiser G4 range of wireless systems are capable of operating simultaneously, intermodulation free, on six frequencies in the licence exempt 863-865 MHz (channel 70) band. These frequencies are;

863.100 MHz
863.400 MHz
863.750 MHz
864.225 MHz
864.550 MHz
864.975 MHz

Features

Engineered for professional live sound
Rugged all-in-one wireless monitoring system
Twin lightweight yet robust bodypack receivers
Supplied with full range in-ear monitoring IE 4 earphones
Half-rack stereo transmitter in a full-metal housing with OLED display
Easy and flexible wireless synchronization between transmitter and receiver Compatible with Sennheiser WSM control
Up to 16 compatible channels
Up to 42 MHz bandwidth with 1680 selectable frequencies
Transmission range of up to 100 meters
High RF output power (up to 30 mW)

Delivery Includes

SR IEM G4 stereo transmitter
2 EK IEM G4 stereo receiver
2 IE 4 earphones
2 AA batteries
rod antenna
GA 3 rackmount set
quick guide
safety guide
manufacturer declaration sheet

Technical Data

SR IEM G4

RF characteristics
Modulation
Wideband FM stereo
(MPX pilot tone)
Frequency ranges
A1: 470 - 516 MHz
A: 516 - 558 MHz
AS: 520 - 558 MHz
G: 566 - 608 MHz
GB: 606 - 648 MHz
B: 626 - 668 MHz
C: 734 - 776 MHz
D: 780 - 822 MHz
E: 823 - 865 MHz
Receiving frequencies
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
Switching bandwidth
up to 42 MHz
Nominal/peak deviation
±24 kHz / ±48 kHz
MPX pilot tone
(frequency/deviation)
19 kHz/±5 kHz
Frequency stability
±10 ppm
Antenna output
BNC socket, 50 Ω
RF output power at 50 Ω
switchable:
Low: typ. 10 mW
Standard: typ. 30 mW
High: typ. 50 mW
AF characteristics
Compander system
Sennheiser HDX
AF frequency response
25 Hz to 15 kHz
AF input
BAL AF IN L (I) + MONO/
BAL AF IN R (II)
2x XLR-3/¼" (6.3 mm) jack
combo socket, electroni-
cally balanced
Max. input level
+22 dBu
Total harmonic distortion
(THD)
<0.9 %
Signal-to-noise ratio (at
nominal load and peak
deviation)
>90 dB
AF output
LOOP OUT BAL L (I)/
LOOP OUT BAL R (II)
¼" (6.3 mm) stereo jack
socket,
balanced
Overall device
Temperature range
-10 °C to +55 °C
Power supply
12 V DC
Current consumption
max. 350 mA
Dimensions
Approx. 202 x 212 x 43 mm
Weight
Approx. 980 g

EK IEM G4

RF characteristics
Modulation
Wideband FM
Frequency ranges
A1: 470 - 516 MHz
A: 516 - 558 MHz
AS: 520 - 558 MHz
G: 566 - 608 MHz
GB: 606 - 648 MHz
B: 626 - 668 MHz
C: 734 - 776 MHz
D: 780 - 822 MHz
E: 823 - 865 MHz
Receiving frequencies
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
Switching bandwidth
up to 42 MHz
Nominal/peak deviation
±24 kHz / ±48 kHz
Receiver principle
Adaptive diversity
Sensitivity (with HDX, peak
deviation)
< 4 μV, typ. 1.6 μV
for 52 dBA
rms S/N
Adjacent channel selection
Typically ≥ 65 dB
Intermodulation attenua-
tion
Typically ≥ 70 dB
Blocking
≥ 80 dB
Squelch
5 to 25 dBμV,
adjustable in steps of 2 dB
Pilot tone squelch
Can be switched off
AF characteristics
Compander system
Sennheiser HDX
Signal-to-noise ratio (1 mV,
peak deviation)
approx. 90 dBA
Total harmonic distortion
(THD)
≤ 0.9 %
Output power at 2.4 V,
5 % THD, nominal deviation
2 x 100 mW at 32 Ω
High Boost
+8 dB at 80 kHz
Limiter
–18 dB to –6 dB,
adjustable in steps of 6 dB,
can be switched off
Overall device
Temperature range
-10 °C to +55 °C
Power supply
2 AA batteries, 1.5 V or
BA 2015 accupack
Nominal voltage
3 V battery /
2.4 V rechargeable battery
Current consumption
at nominal voltage:
approx. 140 mA
with transmitter switched
off: ≤ 25 μA
Operating time
approx. 4 to 6 hours
(depending on volume
level)
Dimensions
Approx. 82 x 64 x 24 mm
Weight (incl. batteries)
approx. 125 g