Sennheiser EW IEM G4-TWIN-A1 Wireless In-Ear Headphones Monitoring System - A1 Band (Band A 470-516 MHz)

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Engineered for professional live sound: Rugged all-in-one wireless monitoring system for in-ear applications. 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.

Sennheiser EW IEM G4-TWIN Wireless In-Ear Monitoring Twin Set 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 / 300 feet.
  • High RF output power (up to 50 mW) depending on country regulations.

Sennheiser EW IEM G4-TWIN-A1 Specifications:
Frequency range bands legend
A1: 470 - 516 MHz
A: 516 - 558 MHz
AS: 520 - 558 MHz
GB: 606 - 648 MHz
G: 566 - 608 MHz
B: 626 - 668 MHz
C: 734 - 776 MHz
D: 780 - 822 MHz
E: 823 - 865 MHz

Dimensions: Approx. 202 x 212 x 43 mm
Compander: Sennheiser HDX
THD, total harmonic distortion: <0.9 %
Weight: Approx. 980 g
Audio input: 2x XLR-3/¼" (6.3 mm) jack combo socket, electronically balanced
Audio output: 1/4" (6.3 mm) stereo jack socket, balanced
Signal-to-noise ratio: >90 dB
RF output power: switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
Switching bandwidth: up to 42 MHz
Peak deviation: ±48 kHz
Nominal deviation: ±24 kHz
Modulation: Wideband FM stereo (MPX pilot tone)
Power supply: 12 V DC
Current consumption: max. 350 mA
Max. Input voltage: +22 dBu
Transmission 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
AF frequency response: 25 Hz to 15 kHz
Temperature Range: -10 °C to +55 °C
Frequency stability: ±10 ppm
Antenna Output: BNC socket, 50 Ω

Each EW IEM G4-TWIN-A1 Retail Box Includes:
(1) SR IEM G4 stereo transmitter
(2) EK IEM G4 stereo receiver
(2) IE 4 earphones
(4) AA batteries
(1) rod antenna
(1) GA 3 rackmount set
(1) quick guide
(1) safety guide
(1) manufacturer declaration sheet
(1) power supply

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