Sennheiser SPECTERA SEK – Bidirectional UHF Bodypack

Product Overview

The Sennheiser SPECTERA SEK is a bidirectional UHF bodypack built for professional wireless audio deployments that require both in-ear monitoring and microphone transmission over a single RF connection. As part of the Spectera wideband ecosystem, this bodypack manages an IEM/IFB stream and a mic/line stream simultaneously, making it well suited for broadcast, theater, and large-scale live production. It covers the 470-608 MHz and 630-698 MHz UHF ranges and integrates directly with the Spectera Base Station for centralized control. This unit is the SEK (UHF) variant, manufacturer part number 509164.

Product Description

The SPECTERA SEK consolidates monitoring and microphone transmission into one bodypack, reducing the number of devices a performer or talent must carry on a single bidirectional RF link. Audio engineers can remotely control and monitor IEM volume, audio level, RF health, and battery status through the Spectera WebUI and SoundBase software, all over the same RF connection used for audio. A persistent E-Ink display keeps the assigned name and key information visible even when the battery is removed, which simplifies inventory and channel management in a busy rack room or backstage area. The bodypack uses AES 256 encryption on the RF link between the Base Station and the SEK, protecting confidential content in broadcast and corporate deployments. It accepts a wide range of Sennheiser lavalier and headset microphones via a 3-pin locking connector and drives in-ear monitors through a 3.5 mm connector. A rugged metal housing protects the electronics in demanding touring and broadcast environments. The unit is powered by the rechargeable lithium-ion BA 70 battery, which is sold separately, and delivers up to 7 hours of operating time depending on the selected audio link mode. An LED meter and status LED provide at-a-glance feedback during a performance.

Key Features

• Bidirectional RF Link — Manages an IEM/IFB stream and a mic/line stream simultaneously over a single encrypted RF connection.
• UHF Frequency Coverage — Operates across the 470-608 MHz and 630-698 MHz UHF ranges for flexible spectrum coordination.
• AES 256 Encryption — Secures the RF connection between the Spectera Base Station and the bodypack for confidential audio transmission.
• Persistent E-Ink Display — Keeps the assigned name and status visible on screen even when the battery is removed.
• Remote Control and Monitoring — Allows engineers to adjust IEM volume and monitor RF health and battery status through the Spectera WebUI and SoundBase software.
• Broad Microphone Compatibility — Connects to Sennheiser lavalier and headset microphones with a 3-pin locking connector and in-ear monitors with a 3.5 mm connector.
• Rugged Metal Housing — Protects internal electronics in demanding touring, theater, and broadcast deployments.
• Rechargeable Operation — Runs up to 7 hours on the rechargeable lithium-ion BA 70 battery depending on the selected audio link mode.

Typical Applications

• Broadcast studio
• Auditorium
• House of worship
• All-hands room
• Commercial meeting space

Technical Specifications

Frequently Asked Questions

What microphones are compatible with the SPECTERA SEK?

The bodypack accepts a wide range of Sennheiser lavalier and headset microphones that use the 3-pin locking connector, giving integrators flexibility when matching capsules to talent.

Does the SEK require a separate battery?

Yes. The SPECTERA SEK is powered by the rechargeable lithium-ion BA 70 battery, which is sold separately and provides up to 7 hours of operation depending on the audio link mode.

How does the SEK integrate into a larger AV system?

The bodypack connects to the Spectera Base Station over an encrypted UHF RF link and is managed centrally through the Spectera WebUI and SoundBase software, allowing it to fit into a coordinated multichannel wireless deployment.

Is the RF transmission secure for confidential content?

The RF connection between the Base Station and the bodypack uses AES 256 encryption, which protects confidential audio in broadcast and corporate environments.

Can engineers monitor the bodypack remotely?

Yes. IEM volume, audio level, RF health, and battery status can all be monitored and controlled remotely over the same RF connection through the Spectera software tools.

What frequency range does this model cover?

This is the UHF variant, covering 470-608 MHz and 630-698 MHz, which should be coordinated against local spectrum regulations during installation.

Is the SEK suitable for touring use?

The rugged metal housing and persistent E-Ink display make the bodypack well suited to touring, theater, and broadcast applications where reliability and quick identification matter.