EW IEM G4 TWIN A1

Wireless In-Ear Monitor System

Overview
Sennheiser EW IEM G4-TWIN-A1 

The ew IEM G4-Twin Wireless Monitor System Kit from Sennheiser is an addition to Sennheiser's evolution family of wireless monitor systems. It includes an SR IEM G4 transmitter, two EK IEM G4 stereo receivers, two pairs of IE 4 earphones, a rod antenna, a GA 3 rackmount kit, and four AA batteries. This kit can be used as a rugged two-person, all-in-one wireless in-ear monitoring system for applications in live stage, theater, or house of worship performances. 

Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones (A1: 470 to 516 MHz)

The EK IEM G4 Stereo Bodypack Receiver with IE4 Earphones from Sennheiser is an addition to their evolution series of wireless systems. It features adaptive diversity technology and can be used when paired with a companion transmitter as part of a wireless RF monitoring system for live stage, theater, and rehearsal applications. The stereo receiver is equipped with 1680 frequencies tunable in 25 MHz steps and has 20 fixed frequency banks with up to 16 compatible frequency presets and another 6 user banks with up to 16 user-programmable frequencies. The receiver's menu-driven backlit display shows current frequency, frequency bank and channel number, metering of RF level, metering of AF level, lock status, and battery status. An auto-lock feature is provided to prevent settings from being accidentally altered. Furthermore, this receiver includes a switchable high-boost and a multi-level limiter. The limiter is adjustable from -18 dB to -6 dB in 6 dB steps or defeatable (off). Built in a rugged metal housing, it is powered by two 1.5V AA sized batteries or by a Sennheiser BA 2015 rechargeable accupack. The earphone output uses a 3.5mm stereo jack socket.

- Robust bodypack receiver delivering clarity along the whole frequency spectrum for daily use on stage.

- 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.

- Range: Up to 100 meters / 300'.

Features
Sennheiser SR IEM G4 Stereo Transmitter (A1: 470 to 516 MHz)

The SR IEM G4 Stereo Transmitter from Sennheiser is an addition to their evolution series of wireless systems. It features wideband FM stereo modulation and can be used when paired with a companion receiver as part of a wireless RF monitoring system for live stage, theater, and rehearsal applications.The stereo transmitter is equipped with 1680 frequencies tunable in 25 kHz steps and has 20 fixed frequency banks, with up to 16 compatible frequency presets and 6 user banks with up to 16 user-programmable frequencies. The receiver's menu-driven backlit OLED display shows current frequency, frequency bank and channel number, metering of AF level, transmission status, equalizer settings, lock status, and input sensitivity. An auto-lock feature is provided to prevent settings from being accidentally altered.Additionally, associated receivers can be synchronized with the transmitter via an integrated infrared interface. This transmitter is built with two electronically balanced XLR/1/4" combo sockets, a 1/4" headphone output with headphone volume control, an Ethernet port (RJ-45 for remote network-based monitoring), and a 50 Ohm BNC-type antenna input. Finally, it has a rugged metal housing and includes a 12 V power supply and a GA 3 rackmount kit.

- 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'.

- High RF output power (up to 50 mW) depending on country regulations.

Specifications

Sennheiser EK IEM G4 Stereo Bodypack Receiver With IE 4 Earphones (A1: 470 To 516 MHz)

Receiver

Frequency Band            A1: 470 to 516 MHz

Receiving Frequency     Maximum 1680 receiving frequencies, adjustable in 25 MHz 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 Type   Adaptive diversity

Sensitivity         < 4 μV, typ. 1.6 μV for 52 dBA (with HDX, peak deviation) rms s/n

Adjacent Channel Selectivity      Typically ≥ 65 dB

Intermodulation Attenuation        Typically ≥ 70 dB

Blocking           ≥ 80 dB

Pilot Tone         Squelch: Can be switched off

Squelch            5 to 25 dBµV, adjustable in steps of 2 dB

Compander       Sennheiser HDX

Signal to Noise Ratio     Approximately 90 dBA (1 mV, peak deviation)

Total Harmonic Distortion (THD) ≤ 0.9%

Audio Output Power      2 x 100 mW at 32 Ohms (@ 2.4 V, 5% THD, nominal deviation)

Quality Setting Range    +8 dB at 80 kHz

Limiter  -18 dB to -6 dB, adjustable in steps of 6 dB, can be switched off

Temperature Range       14 to 131°F / -10 to 55°C

Power Supply   2 x AA batteries, 1.5 V or BA 2015 accupack

Current Consumption     At Nominal Voltage: Approximately 140 mA

With Transmitter Switched Off: ≤ 25 µA

Operating Time  Approximately 4 to 6 hours (depending on volume level)

Dimensions (W x L x H) 3.2 x 2.5 x 0.9" / 82 x 64 x 24 mm

Weight  4.4 oz / 125 g

Sennheiser SR IEM G4 Stereo Transmitter (A1: 470 To 516 MHz)

Receiver

Modulation        Wideband FM stereo (MPX pilot tone)

Frequency Band            A1: 470 to 516 MHz

Receiving Frequency     Maximum 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

Switching Bandwidth     up to 42 MHz

Nominal/Peak Deviation ±24 kHz / ±48 kHz

MPX Pilot Tone 19 kHz/ ±5 kHz (frequency/deviation)

Frequency Stability        ±10 ppm

Antenna Output BNC socket, 50 Ohms

RF Output Power           @ 50 Ohms Switchable:

Low: Typical 10 mW

Standard: Typical 30 mW

High: Typical 50 mW

Compander       Sennheiser HDX

AF Frequency Response           25 Hz to 15 kHz

AF Input            Electronically Balanced

2 x XLR-1/4" / 6.3 mm balanced combo jack

Balanced AF in L +Mono

Balanced AF in R

Maximum Input Level     +22 dBu

Total Harmonic Distortion (THD) ≤ 0.9 %

Signal to Noise Ratio     Approximately >90 dB (nominal load and peak deviation)

AF Output         1/4" / 6.3 mm stereo jack socket balanced

Loop out balanced L, loop out balanced R

Temperature Range       14 to 131°F / -10 to 55°C

Power Supply   12 VDC

Current Consumption     Maximum 350 mA

Dimensions (W x L x H) 8.0 x 8.3 x 1.7" / 202 x 212 x 43 mm

Weight  2.2 lb / 980 g

Packaging Info

Sennheiser SR IEM G4 Stereo Transmitter (A1: 470 To 516 MHz)

Package Weight                                    5.665 lb

Box Dimensions (LxWxH)                      16 x 12.7 x 3.3"

Sennheiser EK IEM G4 Stereo Bodypack Receiver With IE 4 Earphones (A1: 470 To 516 MHz)

Package Weight                                    0.755 lb

Box Dimensions (LxWxH)                      13.95 x 3.2 x 2.8"

What's In The Box

- SR IEM G4 stereo transmitter

-2  EK IEM G4 stereo receiver

- 2 IE 4 Earphones

- 4 AA Batteries

- Rod Antenna

- GA 3 Rackmount Set

- Quick Guide

- Safety  Guide

- Manufacturer Declaration Sheet

- Power Supply