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Sennheiser

Sennheiser SL-TeamConnect CU1 Audio Conference Central Unit

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The Sennheiser SL TeamConnect CU1 is a professional 1U rack-mount central audio unit designed for web and teleconferencing in meeting rooms. It combines automatic mixing of up to eight microphones and two line-level sources, echo and noise cancellation, and versatile connectivity including USB, Ethernet, TELCO, RS-232, and RJ-11.

View Product Features

  • Supports eight mic/line inputs (with 24V phantom power) and two additional line inputs
  • Provides eight balanced audio outputs for active speakers or external devices
  • Full duplex mixing with echo cancellation, noise suppression, push-to-talk, automatic level control, and configurable non-linear processing channels
  • High audio fidelity: 20–22kHz frequency response, <0.02% THD+N, 100dB dynamic range, –124dBu EIN
  • Interfaces with TELCO (RJ-11), USB 2.0, Ethernet (10/100Mbps), and RS-232 ports for configuration and control
  • Remotely operable via Sennheiser’s Configuration Manager software and web/iOS apps
  • Includes rack-mount hardware, power supply (100–240VAC to 12VDC), and full conference kit (cables, screws, terminal blocks) including the CB1 Combox audio interface
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About the Sennheiser SL-TeamConnect CU1 Audio Conference Central Unit

The Sennheiser SL-TeamConnect CU1 is a sophisticated central processing unit designed to orchestrate the audio performance of the TeamConnect ceiling-based conferencing microphone system. This unit serves as the intelligent hub that connects to multiple TeamConnect Ceiling (TCC) microphone tiles via a single standard Ethernet cable, using Power over Ethernet (PoE) to deliver both power and data. The CU1's core function is to process the audio signals from the distributed microphone array, employing advanced beamforming and auto-tracking algorithms to create virtual, steerable microphone lobes that automatically focus on active talkers anywhere in the room. It effectively manages the acoustic environment by suppressing ambient noise, reverberation, and non-speech sounds, delivering pristine, natural audio optimized for voice intelligibility in video conferences and voice reinforcement.

The system is designed for maximum ease of installation and scalability. A single CU1 can support a network of TCC tiles to cover rooms of various sizes and shapes, from huddle spaces to large boardrooms. The unit features automatic setup and calibration, analyzing the room's acoustics upon installation to optimize performance. It provides multiple audio outputs, including a USB connection for plug-and-play compatibility with virtually any PC-based conferencing software (like Zoom, Teams, etc.), as well as standard analog XLR outputs for connection to room mixers or DSPs. This dual-output capability makes it exceptionally versatile for both UC&C (Unified Communications & Collaboration) and traditional AV system integration.

For IT managers and AV integrators, the SL-TeamConnect CU1 represents a convergence of advanced audio technology and network simplicity. It transforms a standard ceiling into a powerful, invisible microphone system that requires no user intervention, fostering a natural meeting experience free from table clutter and microphone management. By providing superior audio pickup from anywhere in the room and seamless USB integration, it ensures that remote participants hear every speaker clearly and naturally, as if they were seated at the table, thereby significantly enhancing the quality and effectiveness of modern hybrid meetings.

Key Features

  • Supports eight mic/line inputs (with 24V phantom power) and two additional line inputs
  • Provides eight balanced audio outputs for active speakers or external devices
  • Full duplex mixing with echo cancellation, noise suppression, push-to-talk, automatic level control, and configurable non-linear processing channels
  • High audio fidelity: 20–22kHz frequency response, <0.02% THD+N, 100dB dynamic range, –124dBu EIN
  • Interfaces with TELCO (RJ-11), USB 2.0, Ethernet (10/100Mbps), and RS-232 ports for configuration and control
  • Remotely operable via Sennheiser’s Configuration Manager software and web/iOS apps
  • Includes rack-mount hardware, power supply (100–240VAC to 12VDC), and full conference kit (cables, screws, terminal blocks) including the CB1 Combox audio interface

Sennheiser SL-TeamConnect CU1 Audio Conference Central Unit Specs

System Function
Type
Central Processing Unit
System
TeamConnect Ceiling Microphone System
Connectivity and Power
Connection to Mics
Ethernet (PoE)
Outputs
USB, XLR
Power
Via PoE or External PSU
Audio Processing
Technology
Beamforming & Auto-tracking
Calibration
Automatic Room Calibration
Primary Output
USB for UC&C
Physical and Control
Mounting
Desktop or Rackmount (optional kit)
Control
Web Interface & Control App
LED Indicators
System Status
Compatibility and Use
Software Compatibility
Universal USB Audio Class
Application
Ceiling-based Conference Audio

Key Features

  • Supports eight mic/line inputs (with 24V phantom power) and two additional line inputs
  • Provides eight balanced audio outputs for active speakers or external devices
  • Full duplex mixing with echo cancellation, noise suppression, push-to-talk, automatic level control, and configurable non-linear processing channels
  • High audio fidelity: 20–22kHz frequency response, <0.02% THD+N, 100dB dynamic range, –124dBu EIN
  • Interfaces with TELCO (RJ-11), USB 2.0, Ethernet (10/100Mbps), and RS-232 ports for configuration and control
  • Remotely operable via Sennheiser’s Configuration Manager software and web/iOS apps
  • Includes rack-mount hardware, power supply (100–240VAC to 12VDC), and full conference kit (cables, screws, terminal blocks) including the CB1 Combox audio interface
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