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Stem Audio Ceiling
Conference-Room Beamforming Microphone Array

Manufacturer SKU: CEILING1
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MSRP: $3,999.00
Our Price: $2,899.00
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Top Ceiling Specifications
  • Compatible Operating Systems: Windows 98 and Up Linux, Mac OS/macOS
  • Network Port: 1 x RJ45, Full Duplex
  • Power Over Ethernet (PoE) Support: Yes, PoE+ 802.3 Type 2
  • PC Connectors: 1 x USB Type-B
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The Stem Audio Stem Ceiling is an elegant, beamforming microphone array that easily mounts on the ceiling of your conference room. It offers clear and highly intelligible speech capture with state-of-the-art sound quality that enhance the conferencing experience for all participants. The device connects to your local network with PoE+ (Power over Ethernet) or to a computer in meeting rooms, collaboration areas, and huddle rooms.

Whether you want to keep your audio out of sight or show it off, the Stem Ceiling gives you the option to discreetly flush mount the device to a ceiling tile or tie it into the design of the room in chandelier mode.

The Stem Ceiling features a 100-microphone array with wide, medium, and narrow pickup beam options to configure the device for the size of your room. Voice-activity detection and automatic tracking of the person speaking ensure intelligible speech capture. Automatic gain control adjusts the volume of people close to and far from the microphones, while adaptive echo cancellation, dereverberation, and background noise reduction ensure comfortable communication, free from distracting sounds.


  • Microphones: 100 x Wide, Medium, Narrow Array
  • Echo Cancellation: > 40 dB, Conversion Speed 40 dB/Second
  • Noise Cancellation: > 15 dB
  • Frequency Response: 50 Hz to 16 KHz
  • Broadcast Level: 90 dB SPL at 1 kHz from 3.3' / 1 m, 5 W RMS

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