Data Sheet

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© 2021 Shure Incorporated
OVERVIEW
Stem Ceiling Microphone Array mounts above the conferencing space, providing uncompromising
performance while keeping the technology out of sight. With adjustable beam options and the
aesthetics needed to blend with any environment, Stem Ceiling eliminates distractions and keeps
the focus on the conversation.
FEATURES
CEILING MICROPHONE ARRAY
ACCESSORIES (included in the box)
CAT 6 Ethernet Cable: 15 ft. (4.6 m)
USB Type A to USB Type B Cable: 12 ft. (3.7 m)
Square Ceiling Mount
Suspension Kit
Gripple Kit
STEM CEILING
SPECIFICATIONS (subject to change)
GENERAL
Connector Type RJ45 and USB Type B
Power Requirements Power over Ethernet Plus (PoE+) 802.3 at Type 2
Control Application Stem Ecosystem Platform
Weight Microphone: 9 lbs (4.1 kg)
Square Ceiling Mount: 7.5 lbs (3.4 kg)
Product Dimensions Microphone: 21.5 x 1.75 in (54.6 x 4.4 cm) D x H at center;
H at edge: 0.5 in (1.8cm)
Square Ceiling Mount: 23.5 x 23.5 x 1.25 in (59.7 x 59.7 x 3.2 cm) L x W x H
Suspension Cable Length: 120 in (304.8 cm)
Operating Temperature Range −6.7°C (20°F) to 40°C (104°F)
Storage Temperature Range −29°C (-20°F)to74°C (165°F)
AUDIO
Beam Width Narrow (20 degrees), Medium (45 degrees), Wide (60 degrees)
Frequency Response 50Hzto16kHz
Built-inDSP Automatic Voice-Level Adjustment (AGC);
100% Full Duplex, no attenuation in either direction
Noise Cancellation >15dB (without pumping noise)
Acoustic Echo Cancellation >40dB with conversion speed of 40dB/sec; residual echo is suppressed to the
environment noise level, preventing artifi cial ducking of signal;
High-end performance conforms to ITU-T G.167
STEM CEILING
Low Profi le Mount
STEM CEILING
Suspension Mount
• 100 built-in microphones create a wide, medium, or narrow beam to cover the room or a
specifi c area as needed.
• Audio fencing mode completely removes outside noise and unwanted distractions (available
in narrow beam setting only).
• Built-in digital signal processing includes state-of-the-art acoustic echo cancellation,
automatic gain control, noise cancellation, and de-reverberation algorithms.
• Automatic confi guration and control with Stem Ecosystem platform.
• LED light ring indicates when the device is active, muted, and other statuses.
• Compatible with leading video conferencing platforms.
• Directly connect the standalone device to a PC via USB or use Stem Control Touch Controller
to integrate a Stem Ecosystem room solution for video conferencing.
• Power over Ethernet (PoE+).
• Dual mounting options: Low profi le with square mount or suspended in chandelier mode.