The ew IEM G4 Wireless Monitor System from Sennheiser is part of the evolution family of wireless monitoring systems and includes an SR IEM G4 transmitter, a EK IEM G4 stereo receiver, a pair of IE 4 earphones, a rod antenna, GA 3 rackmount kit, and two AA batteries. This kit can be used as a rugged, all-in-one wireless in-ear monitoring system for live stage, theatre, and house of worship applications.
Key Features
- 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
- High RF output power (up to 30 mW) depending on country regulations
Specifications
| EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones B: (626 to 668 MHz) | |
| Receiver | |
| Frequency Band | B: 626 to 668 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 |
| 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) | 82 x 64 x 24 mm |
| Weight | 125 g |
| SR IEM G4 Stereo Transmitter B: (626 to 668 MHz) | |
| Modulation | Wideband FM stereo (MPX pilot tone) |
| Frequency Band | B: 626 to 668 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) | 202 x 212 x 43 mm |
| Weight | 980 g |
