Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones (AS: 520 to 558 MHz)

Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones (AS: 520 to 558 MHz)

Sennheiser has added the EK IEM G4 Stereo Bodypack Receiver with IE4 Earphones to their evolution line of wireless systems. It has adaptive diversity technology and can be utilised as a wireless RF monitoring system for live stage, theatre, and rehearsal applications when linked with a companion transmitter.

The stereo receiver has 1680 frequencies that may be adjusted in 25 MHz steps, 20 fixed frequency banks with up to 16 suitable preset frequencies, and additional 6 user banks with up to 16 programmable frequencies. The receiver's menu-driven backlit display lists the current frequency, frequency bank, and channel number as well as RF and AF level metres, lock status, battery level, and the current frequency. In order to prevent settings from being unintentionally changed, an auto-lock feature is included.

This receiver also has a multi-level limiter and a switchable high-boost. The limiter is defeatable or may be adjusted from -18 dB to -6 dB in 6 dB steps (off). It is housed in a tough metal inclosure and powered by two 1.5V AA batteries or a Sennheiser BA 2015 rechargeable accupack. The 3.5mm stereo jack connector is used for the earphone output.

Frequency Range
AS: 520 - 558 MHz

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 (not inc.)

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 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 80 kHz

Temperature Range
-10 °C to +55 °C

Receiver Principle 
Adaptive Diversity

Blocking
≥ 80 dB