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Sennheiser Spectera SEK beltpack UHF

Bidirectional bodypack for IEM reception and Mic/Line transmission. Requires BA 70 rechargeable battery, sold separately, frequency range: UHF (470 - 608 MHz and 630 - 698 MHz)
€1,652.00
€1,379.00
17% discount
  • Ordered before 15:00, shipped the same day, provided products are in stock.
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Product number: K039583

Available Summer 2025

The Bidirectional Spectera SEK body pack is a versatile piece of equipment that can manage both digital IEM/IFB and mic/line signals at the same time. This is made possible through its bidirectional data and audio control in an identical RF carrier, allowing for full remote control and monitoring of various settings such as IEM volume, mic/line gain, RF health, battery status, and more. It also features an impedance-matching high-power headphone amplifier and continuous interference management.

With an endless encoder and push button, the Spectera SEK body pack offers easy and convenient control. Its LED meter, status LED, and E-Ink display provide "always on" information, even when the batteries are removed. Additionally, it has a long operating time of up to 7 hours with a rechargeable lithium-ion battery and encrypted RF connection for secure transmission of confidential content using AES 256 encryption. The body pack is also compatible with a wide range of Sennheiser lavalier and headset microphones and in-ear monitors, making it a reliable and versatile choice for any audio needs.

Each Bidirectional Spectera SEK body pack manages both an IEM/IFB and a mic/line stream simultaneously. Plus, the allow for full remote control and monitoring, via identical RF connection, of IEM volume, audio level and settings, RF health, battery status, and more via LinkDesk software.

Spectera SEK body packs feature an impedance matching high-power headphone amplifier and offer up to seven hours of operating time depending on the selected Audio Link mode and setting with rechargeable  lithium-ion battery BA 70.


  • Bidirectional bodypack manages both digital IEM/IFB and mic/line signals simultaneously
  • 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
  • Continuous interference management
  • Endless encoder and push button
  • 3-pin mic/line input and IEM/IFB 2.5mm 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 the selected audio link mode and settings with rechargeable lithium-ion battery BA 70 (sold separately)
  • Encrypted RF connection between the Base Station and bodypack
  • Secure transmission of confidential content using AES 256 encryption
  • Versatile charging options also available: L 70 USB, LM 6070 Module for L 6000 full rack charging station and charging with CHG 70N-C
  • Compatible with a wide range of Sennheiser lavalier and headset microphones with 3-pin locking connector and in-ear monitors with 3.5mm connector.
  • Rugged metal housing
  • Compatible products

    17% discount
    Sennheiser Spectera Base Station
    1RU Rackmount Base Station For Spectera System

    €6,895.00 €8,260.30
    16% discount
    Sennheiser Spectera MADI card (BNC)
    Optional MADI card for Spectera Base Station, featuring Optical connection

    €103.00 €123.15
    17% discount
    Sennheiser Spectera DAD antenna UHF
    Bidirectional Digital Antenna Module With RJ45 Connection - UHF Range (470 - 608 MHz And 630 - 698 MHz)

    €1,100.00 €1,321.50
    Product information

    Available Summer 2025

    The Bidirectional Spectera SEK body pack is a versatile piece of equipment that can manage both digital IEM/IFB and mic/line signals at the same time. This is made possible through its bidirectional data and audio control in an identical RF carrier, allowing for full remote control and monitoring of various settings such as IEM volume, mic/line gain, RF health, battery status, and more. It also features an impedance-matching high-power headphone amplifier and continuous interference management.

    With an endless encoder and push button, the Spectera SEK body pack offers easy and convenient control. Its LED meter, status LED, and E-Ink display provide "always on" information, even when the batteries are removed. Additionally, it has a long operating time of up to 7 hours with a rechargeable lithium-ion battery and encrypted RF connection for secure transmission of confidential content using AES 256 encryption. The body pack is also compatible with a wide range of Sennheiser lavalier and headset microphones and in-ear monitors, making it a reliable and versatile choice for any audio needs.

    Each Bidirectional Spectera SEK body pack manages both an IEM/IFB and a mic/line stream simultaneously. Plus, the allow for full remote control and monitoring, via identical RF connection, of IEM volume, audio level and settings, RF health, battery status, and more via LinkDesk software.

    Spectera SEK body packs feature an impedance matching high-power headphone amplifier and offer up to seven hours of operating time depending on the selected Audio Link mode and setting with rechargeable  lithium-ion battery BA 70.


  • Bidirectional bodypack manages both digital IEM/IFB and mic/line signals simultaneously
  • 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
  • Continuous interference management
  • Endless encoder and push button
  • 3-pin mic/line input and IEM/IFB 2.5mm 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 the selected audio link mode and settings with rechargeable lithium-ion battery BA 70 (sold separately)
  • Encrypted RF connection between the Base Station and bodypack
  • Secure transmission of confidential content using AES 256 encryption
  • Versatile charging options also available: L 70 USB, LM 6070 Module for L 6000 full rack charging station and charging with CHG 70N-C
  • Compatible with a wide range of Sennheiser lavalier and headset microphones with 3-pin locking connector and in-ear monitors with 3.5mm connector.
  • Rugged metal housing