Sennheiser Spectera SEK UHF Bidirectional Wireless Bodypack Mic Transmitter/IEM Receiver (UHF: 470 to 698 MHz)

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Exploring Spectera: The World's First Bidirectional Digital Wireless Ecosystem | Sennheiser

Behind Spectera: A Close Look at the Making of a Breakthrough in Wireless Pro Audio Technology

Part of the Spectera ecosystem, the Sennheiser Spectra SEK (UHF: 470 to 698 MHz) is a bidirectional wireless bodypack that accommodates both IEM/IFB reception and a mic/line transmission simultaneously in a single device. The bodypack features a 3.5mm stereo headphone connector and an impedance-matching, high-power headphone amplifier compatible with a wide range of in-ear monitors. Its 3-pin LEMO microphone connector accommodates the compatible lavalier or headset microphone of your choice, or an adapter cable for line-level or instrument signals. The always-on E-ink display helps you quickly name and identify the transmitter and allows you to see parameters, even when the unit is powered off.

The Spectera SEK allow for full remote control and monitoring of IEM volume, audio level and settings, RF health, battery status, and more via LinkDesk software. The bodypack offers up to seven hours of operating time, depending on selected Audio Link mode and settings, using a BA 70 rechargeable lithium-ion battery (available separately).

• Bidirectional bodypack manages both digital IEM/IFB and mic/line signals simultaneously (UHF: 470 to 698 MHz)
• Bidirectional data and audio control in identical RF carrier of all mobile devices
• Full remote control and monitoring of SEK bodypack: IEM volume, mic/line gain, RF health, battery status, and more
• Impedance-matching high-power headphone amplifier
• Compatible with a wide range of Sennheiser lavalier and headset microphones with 3-pin LEMO locking connector and in-ear monitors with 3.5mm TRS connector
• Headphone output can be switched to balanced mono output in WebUI
• Continuous interference management
• Endless encoder and push button
• 3-pin LEMO mic/line input and IEM/IFB 3.5mm TRS headphone connector
• LED meter, status LED, and persistent E-Ink display for "always on" information—name visible on screen, even when batteries are removed
• Up to 7 hours of operating time, depending on selected Audio Link mode and settings, using rechargeable lithium-ion battery BA 70 (available separately)
• Sleep mode helps conserve battery life
• AES 256 encryption for secure transmission of confidential content between Base Station and bodypack
• Versatile charging options: L 70 USB, LM 6070 Module for L 6000 full rack charging station
• Charging contacts for in-device charging with CHG 70N-C
• Rugged metal housing