Evolution Wireless G4 IEM is Sennheiser’s analogue UHF in-ear monitoring platform, with 42 MHz switching bandwidth, HDX compander, and an adaptive-diversity bodypack receiver. This set ships as a complete in-ear monitoring system with rack-mount transmitter, bodypack receiver, earphones and accessories. Band variant: GB, 606 – 630 MHz (UK CH38). Requires an Ofcom shared PMSE licence in the UK.
Key Features
✓Analogue UHF in-ear monitoring system
✓1680 selectable UHF frequencies across a 42 MHz tuning range
✓HDX compander for low noise floor on in-ear feeds
✓Auto-scan on the transmitter with one-button sync to the bodypack receiver
✓Adaptive-diversity bodypack receiver with backlit display and focus/stereo modes
✓UK band GB: 606 – 630 MHz (UK CH38)
✓Switching bandwidth: up to 42 MHz
✓Audio frequency response: 25 Hz to 15 kHz
✓Battery runtime: approx. 4 to 6 hours (depending on volume level)
Specifications
| SR IEM G4 – General: Modulation | Wideband FM stereo (MPX pilot tone) |
| SR IEM G4 – General | Frequency ranges |
| SR IEM G4 – General: A | 516 – 558 MHz |
| SR IEM G4 – General: AS | 520 – 558 MHz |
| SR IEM G4 – General: G | 566 – 608 MHz |
| SR IEM G4 – General: GB | 606 – 648 MHz |
| SR IEM G4 – General: B | 626 – 668 MHz |
| SR IEM G4 – General: C | 734 – 776 MHz |
| SR IEM G4 – General: D | 780 – 822 MHz |
| SR IEM G4 – General: E | 823 – 865 MHz |
| SR IEM G4 – General: Switching bandwidth | up to 42 MHz |
| SR IEM G4 РGeneral: Nominal/peak deviation | ±24 kHz / ±48 kHz |
| SR IEM G4 РGeneral: MPX pilot tone (frequency/deviation) | 19 kHz/±5 kHz |
| SR IEM G4 РGeneral: Frequency stability | ±10 ppm |
| SR IEM G4 – General: Antenna output | BNC socket, 50 Ω |
| SR IEM G4 – General: Standard | typ. 30 mW |
| SR IEM G4 – General: High | typ. 50 mW |
| SR IEM G4 – General: Compander system | Sennheiser HDX |
| SR IEM G4 – General: AF frequency response | 25 Hz to 15 kHz |
| SR IEM G4 – General: 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 |
| SR IEM G4 – General: Max. input level | +22 dBu |
| SR IEM G4 – General: Total harmonic distortion (THD) | <0.9 % |
| SR IEM G4 – General: Signal-to-noise ratio (at nominal load and peak deviation) | >90 dB |
| SR IEM G4 – General: AF output LOOP OUT BAL L (I)/ LOOP OUT BAL R (II) | ¼” (6.3 mm) stereo jack socket, balanced |
| SR IEM G4 – General: Temperature range | -10 °C to +55 °C |
| SR IEM G4 – General: Power supply | 12 V DC |
| SR IEM G4 – General: Current consumption | max. 350 mA |
| SR IEM G4 – Physical & Dimensions: Height | 43mm |
| Sennheiser part number | 509909 |
| UK band | GB (606 – 630 MHz (UK CH38)) |
