Sennheiser Spectera SEK Bodypack
- Bidirectional bodypack: IEM or IFB in, mic or line out
- UHF or 1G4 versions for the Spectera system
- Up to 7 hours on a BA 70 battery (sold separately)
From $1,999.00 USD
Sennheiser Spectera SEK Bodypack
The Sennheiser Spectera SEK bodypack handles two jobs at once: it receives an in-ear or IFB mix for the wearer and sends a mic or line signal back to the Spectera Base Station.
Both streams share one RF link, which also carries remote control and monitoring. From the Spectera WebUI or SoundBase software you adjust IEM volume and mic or line gain, and you see RF health and battery status for every pack.
Frequency Bands
The SEK comes in two versions. The UHF model covers 470 to 608 MHz and 630 to 698 MHz, and the 1G4 model covers 1350 to 1400 MHz and 1435 to 1525 MHz. The Base Station’s regional license sets the spectrum a system uses.
Inputs and Power
A locking 3-pin input takes Sennheiser lavalier and headset mics or a line source. A 3.5 mm jack feeds in-ear monitors from an impedance-matching headphone amplifier. The pack runs up to 7 hours on a BA 70 lithium-ion battery (sold separately); runtime depends on the Audio Link mode. The battery charges in the L 70 USB charger, in an LM 6070 module in the L 6000, or inside the pack on a CHG 70N-C.
Display and Security
An E-Ink display, beside an LED meter and a status LED, keeps the pack’s name in view even with the battery out. The RF link between pack and Base Station is encrypted with AES 256.
Features
- Receives IEM or IFB audio and sends mic or line audio at the same time
- Remote control and monitoring over the same RF link
- UHF or 1G4 versions
- Locking 3-pin mic/line input and 3.5 mm headphone output
- Impedance-matching high-power headphone amplifier
- Continuous interference management
- E-Ink display, LED meter, and status LED
- Up to 7 hours on a BA 70 battery (sold separately)
- AES 256 encryption
- Rugged metal housing
What's Included
- Spectera SEK bodypack
- Spectera SEK antenna
- Belt clip
- Quick guide
- Safety guide
Specifications
| Audio | |
|---|---|
| Audio Frequency Response | 20 Hz – 20 kHz (±1 dB) |
| Dynamic Range | Over 112 dB(A) |
| Sampling Rates | 48 kHz and 96 kHz |
| Gain | −6 to +42 dB, in 1 dB steps |
| Low-Cut Filter | 20, 30, 60, 80, 100, or 120 Hz |
| Mic/Line Input | 3-pin audio socket, 22 kΩ |
| Headphone Output | 3.5 mm TRS, 2 × 300 mW RMS (32 Ω) |
| RF | |
| Frequency Range | UHF: 470 – 608 MHz and 630 – 698 MHz 1G4: 1350 – 1400 MHz and 1435 – 1525 MHz |
| Transmission Power | Up to 50 mW (by country) |
| Antenna Connector | Sennheiser coax, 50 Ω |
| Codec | OPUS |
| Transmission Method | Multicarrier, TDMA, TDD |
| Encryption | AES 256 (CTR mode) |
| Power and Physical | |
| Battery | BA 70 lithium-ion pack (sold separately) |
| Operating Time | Up to 7 hours, by Audio Link mode |
| Operating Temperature | −10 to +50 °C (14 to 122 °F) |
| Color | Anthracite |
| Warranty | 2 years |
| Latest Specifications | Specifications are subject to change without prior notice. For current information, visit www.sennheiser.com. |
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