Sennheiser EM4DANTE(R1-9) 4 Channel Dante Wireless Receiver Four-channel digital full-rack (19") receiver with internal PSU and Dante for use with Evolution Wireless Digital handheld, bodypack and tablestand transmitters. Extended 88 MHz switching bandwidth, intermodulation-free operation [intermodulation-free equidistant channel spacing] for up to 293 channels with secure AES 256 encryption and four modular network ports. Sennheiser EW-DX simplifies your professional workflow by utilizing refined technologies and decades of research to deliver a digital UHF system that can be scaled with ease. With its advanced feature set and hardware options, classrooms, corporate campuses, and live productions benefit from a network-ready system that is designed to integrate seamlessly. The system quickly assesses your environment and uses equidistant channel spacing to deploy frequencies while tools like Sennheiser?s Control Cockpit, Wireless Systems Manager, and Smart Assist App allow you to monitor your system remotely. In-device charging, 12-hour battery operation, and switching bandwidth up to 88 MHz are only a few more of the many features that make EW-DX the right tool for the job. Features Four-channel digital full rack (19") receiver with internal PSU and with Dante in rugged metal housing Up to 88 MHz switching bandwidth Auto-switching PSU with IEC Connection Four network ports for flexible network configurations - each port can be assigend as: Control, Control + Dante Prim, Control + Dante Sec, Dante Prim, Dante Sec Integrated antenna splitter with antenna power and loop through to daisy chain up to 16 channels (4 x EW-DX EM 4) Low latency of 1.9 ms wireless transmission thanks to proprietary Sennheiser Performance Audio Codec (SePAC) 134 dB input dynamic range - no need to set gain on your wireless transmitters at all, thanks to proprietary Sennheiser Performance Audio Codec (SePAC) Equidistant channel spacing to easily allocate intermodulation-free channels: Standard Mode with 600 kHz spacing for up to 146 channels; Link Density (LD) Mode with 300 kHz spacing for up to 293 channels Network enabled for expanded remote control with Sennheiser Control Cockpit, Wireless System Manager and 3rd party media control systems via plug-in Ethernet connectivity (IPv4 and IPv6) Secure transmission of confidential content using AES 256 encryption AutoScan-feature quickly scans your environment and deploys frequencies with equidistant channel spacing - even without RF knowledge Link Quality Indicator (LQI) showing the quality of the links seperate to the RF levels Remote control via Smart Assist App over Bluetooth Low Energy (BLE) at distances up to 25 meters Clear and easy focused user interface with OLED display, jog wheel navigation and control buttons Selective headphone output with volume control on front panel Extended menu settings such as custom frequency list, selectable sync parameter and walk test Worldwide usage (specific frequencies subject to local RF regulations) Specsification Dimensions483 x 44 x 373 mm (19" x 1.73" x 14.66") Audio output2x 70 mW @ 32 ? Latency (ms)1.9 ms Power consumption (Amp)max. 37W Connection Wireless Total harmonic distortion (THD): ? -60 dB for 1 kHz @ -3 dBfs input level Latency (ms): 1.9 ms Frequency Specifications Audio frequency response: 20 Hz - 20 kHz (-3 dB) Acoustic Properties Dynamic range (?): 134 dB Audio output level: 18 dBu max. Inputs/Outputs Audio output: 2x 70 mW @ 32 ? Ambient Conditions Operating relative humidity (? %): 5 ? 95 % (non-condensing) Operating temperature (C): -10 C - +55 C (14 F - 131 F) Battery Power Battery included: N Power consumption (Amp): max. 37 W Electrical Properties Input voltage: 90 - 265 V AC, 47 - 63 Hz Output power: 18 dBu max. Transmission power (mA): BLE: max. 10 mW EIRP Dimensions Dimensions: 483 44 373 mm (19" 1.73" 14.66") Product height: 175 Product length: 550 Product weight (g): 4560 Product width: 435 Bluetooth Bluetooth transmission frequency: 2402 - 2480 MHz