Wireless IEM System with Sennheiser EW IEM G4 and RF Venue COMBINE4 & CP Beam

This bundle is curated for performers or talents to be able to hear anywhere on stage and in the effort of making their gig an extraordinary experience. Engineered for pro live sound, the Sennheiser EW IEM G4 can go completely wireless without jeopardizing quality, with the freedom to place one directional antenna outside the rack for better line-of-sight and improved wireless performance. Tested and proven, this antenna combiner system is also compatible with any other manufacturers.
Sennheiser EW IEM G4 Wireless In-Ear Monitoring System
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
RF Venue COMBINE4 IEM Combiner
The COMBINE4 active IEM transmitter combiner brings together up to four in-ear monitor transmitter signals into a single, more powerful transmit antenna, eliminating the use of problematic multiple antennas while lowering the buildup of unwanted Intermodulation.
It provides DC power for up to four IEM transmitters to reduce cable clutter and wall warts. Combining transmitters is critical to multi-channel systems, in order to minimize intermodulation artifacts arising from multiple adjacent transmitters interfering with one another. Suitable for use with any brand of transmitter (up to 100mW) and passive antenna.
RF Venue CP Beam
The CP Beam™ Antenna is a lightweight, circularly polarized antenna that doesn’t drop out and is designed to ensure a consistent signal with in-ear monitors (IEMs), wireless microphone systems, and other UHF communication devices.
The CP Beam is easy to set up and transport – fitting in a 3RU rack drawer and weighing just 2.5 lbs – and compresses for easy storage (see the before and after compression). Unlike other bulky helical antennas that require flight cases, the CP Beam is quickly deployed and stowed.
The benefits of a helical antenna (CP Beam) vs. a whip antenna:
Provides constant signal regardless of IEM receiver position
Not buried in a rack – better signal with line of sight to IEMs
Focused beam signal – for better reception compared to omnidirectional
To use, disconnect straps and extend CP Beam. Connect coaxial cable (not included) to receiver, transmitter, or antenna combiner. Provides up to 9 dB of antenna gain. Mounts to ¼"-20, ⅜"-16 or ⅝"-27 threads.
Reduce the impact of dropouts due to the changing position of the IEM bodypack
For IEM systems, getting a good signal to the bodypack receiver is essential. One barrier to great reception is that many belt-pack receivers don’t support diversity reception--which is to say they have only a single antenna. This makes these receivers much more likely to encounter dropouts and multi-path fades than the dual antenna diversity systems common in microphones and higher end IEMs. The belt-pack is also in motion, and can change orientation depending on body position. Plus, the pack sits beside or behind the talent, requiring the signal to pass through or alongside the performer's body, which is nontransparent for RF energy.
In the Box
(4) Sennheiser EW IEM G4 Wireless In-Ear Monitoring System
(1) RF Venue COMBINE4 IEM Combiner
(1) RF Venue CP Beam

As Sennheiser Singapore's Official Dealer, the equipment we supply will be supported through the Sennheiser Singapore Service Centre (Carry-in Service)

Specifications

Sennheiser EW IEM G4 Wireless In-Ear Monitoring System
General Specifications

SR IEM G4
RF characteristics Modulation Wideband FM stereo (MPX pilot tone)
Frequency ranges A1: 470 - 516 MHz
A: 516 - 558 MHz
A30: 516 - 558 MHz
AS: 520 - 558 MHz
G: 566 - 608 MHz
GB: 606 - 648 MHz
B: 626 - 668 MHz
B30: 626 - 668 MHz

Transmitting 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, electronically 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 ¼" (6.3 mm) stereo jack
LOOP OUT BAL L (I)/ socket,
LOOP OUT BAL R (II) 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

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 attenuation
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 8 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