Shure STEM CEILING Ceiling Microphone Array

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.

Part of the Stem Audio ecosystem for conference rooms, the Stem Ceiling is an elegant, beamforming microphone array that easily mounts on the ceiling of your conference room.

Offering clear and highly intelligible speech capture with state-of-the-art sound quality that enhance the conferencing experience for all participants. This device connects to your local network with PoE+ (Power over Ethernet) or to a computer in meeting rooms, collaboration areas, and huddle rooms.

Includes

• Stem Audio Ceiling Conference-Room Beamforming Microphone Array
• USB Type-A to Type-B Cable (12')
• Cat 6 Ethernet Cable (15')
• Metal Ceiling Tile (2')
• Suspension Kit
• Limited 2-Year Warranty

Features

• Mounts On Ceiling for Conferencing
• 100 Mics-Wide/Medium/Narrow Beamforming
• Use Networked/Standalone with Computer
• Power over Ethernet (PoE+)
• Hanging or Flush Mount with Ceiling Tile
• Automatic Voice-Level Adjustment
• Noise Cancellation, Echo Canceling

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
• 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
• Cable Length:
  • Suspension Cable: 120" / 304.8 cm
  • Ethernet Cable: 15' / 4.6 m
  • USB Cable: 12' / 3.7 m
• Compliance:
  • AS/NZS CISPR 32:2015
  • EN 55032:2012/AC:2013
  • VCCI 32-1
  • FCC 15.109:2019
  • FCC 15.109(g):2019
  • ICES-003:2016 updated April 2017
• Dimensions:
  • Ceiling Microphone Diameter: 21.5" / 54.6 cm
  • Height at Edge: 0.5" / 1.8 cm
  • Height at Center: 1.75" / 4.4 cm
  • Ceiling Tile: 23.5 x 23.5 x 1.25" / 59.7 x 59.7 x 4.4 cm
• Weight:
  • Ceiling Microphone: 9 lb / 4.1 kg
  • Ceiling Tile: 7.5 lb / 3.4 kg
• Packaging Info:
  • Package Weight 18.745 lb
  • Box Dimensions (LxWxH) 24.8 x 24.1 x 4.9"