The Sennheiser EK IEM G4 Wireless Receiver is designed to deliver exceptional clarity across the entire frequency spectrum. It has a robust design and offers complete compatibility with Sennheiser’s WSM control software. This allows for flexible frequency allocation and supports up to 16 channels. The receiver can be powered either by two AA batteries or by Sennheiser’s BA 2015 rechargeable battery (battery not included). Included with the receiver are a pair of IE 4 earphones, which provide high-performance sound. The transmission range of the EK IEM G4 is up to 100 meters (300 feet).
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Key features of the EK IEM G4 include its robust bodypack design, which delivers clarity across the entire frequency spectrum. The receiver is easy to use and offers flexible wireless synchronization with the transmitter through infrared technology. Additionally, it is compatible with Sennheiser’s WSM control software, which allows for flexible frequency allocation. The receiver supports up to 16 channels and has a bandwidth of up to 42MHz, with 1680 selectable frequencies. The transmission range is up to 100 meters (300 feet) and it has a high RF output power of up to 30mW, depending on country regulations.
Included in the box with the EK IEM G4 are the stereo receiver, two AA batteries, IE 4 earphones, a quick guide, and a safety guide. The specifications of the receiver include its wideband FM modulation, frequency range of 863MHz – 865MHz, and maximum of 1680 frequencies adjustable in 25kHz steps. It has 20 frequency banks, each with up to 16 factory-preset channels, as well as 6 frequency banks with up to 16 programmable channels. The switching bandwidth is up to 42MHz, and it has a sensitivity of less than 4µV.
The EK IEM G4 also features adjacent channel selection of typically ≥ 65dB, intermodulation attenuation of typically ≥ 70dB, and blocking of ≥ 80dB. It has a squelch range of 5 to 25dBµV adjustable in steps of 2dB, and the pilot tone squelch can be switched off. The compander system used is Sennheiser HDX, and the signal-to-noise ratio with 1mV peak deviation is approximately 90dBA. The total harmonic distortion is ≤ 0.9%, and the output power at 2.4V 5% THD nominal deviation is 2 x 100mW at 32Ω.
The EK IEM G4 operates in a temperature range of -10°C to +55°C and can be powered by two AA batteries or the BA 2015 Accupack. The nominal voltage is 3V for batteries and 2.4V for the rechargeable battery. The current consumption is approximately 140mA at nominal voltage, and less than 25µA with the transmitter switched off. The operating time is approximately 4 to 6 hours, depending on the volume level. The dimensions of the receiver are approximately 82mm x 64mm x 24mm, and the weight (including batteries) is approximately 125g.
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