The Sennheiser SR IEM G4 Stereo Transmitter features a robust design housed inside a full-metal half-rack enclosure with a vibrant OLED display. With complete compatibility with Sennheisers WSM control software the SR IEM G4 features flexible frequency allocation and is compatible with up to 16 channels. The transmitter comes complete with a rod antenna (50 Ohm BNC antenna connector on the transmitter) as well as a GA 3 rackmount set for easily mounting within a rack case. The SR IEM G4 provides you with a versatile high-performance IEM transmitter solution with a transmission range of up to 100 meters (300 feet). Features Half-rack stereo transmitter in a full-metal housing with an 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 42MHz bandwidth with 1680 selectable frequencies fully tunable in a stable UHF range High RF output power (up to 30mW) depending on country regulations Transmission range of up to 100 meters / 300 feet Included In The Box SR IEM G4 Stereo Transmitter Rod Antenna Power Supply GA 3 Rackmount Set Quick Guide Safety Guide Manufacturer Declaration Sheet Specifications Modulation: Wideband FM stereo (MPX pilot tone) Frequency Range: 863MHz – 865MHz Receiving Frequencies: Max. 1680 frequencies adjustable in 25kHz 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 42MHz Nominal Deviation: +/-24kHz Peak Deviation: +/-48kHz MPX Pilot Tone: Frequency: 19kHz Deviation: +/-5kHz Frequency Stability: +/-10 ppm Antenna Output: BNC Socket 50 Ω RF Output Power At 50 Ω: Switchable Low: Typ. 10mW Standard: Typ. 30mW High: Typ. 50mW Compander System: Sennheiser HDX AF Frequency Response: 25Hz to 15kHz AF Input: 2 x XLR-3 / 6.35mm (1/4) Jack Combo sockets electronically balanced Max. Input Level: +22dBu Total Harmonic Distortion: < 0.9% Signal-To-Noise Ratio: > 90dB AF Output: 6.35mm (1/4) Stereo Jack socket balanced Temperature Range: -10°C to +55°C Power Supply: 12 V DC Current Consumption: Max. 350mA Dimensions: Approx. 202mm x 212mm x 43mm Weight: Approx. 980g