User Manual

Light Activity
Slow red pulsing
Rapid red pulsing
(approx. two seconds)
Solid red line
Blue lights turning off
from right to left
Partial blue dots shifting
Directional blue light
Device Function
Single blue light
moving from left to right
Device is muted
Device is being pinged
Device error
Device is booting up
Device is restarting
Device is adapting &
testing the environment
Direction of voice
pickup in progress
Mute
To mute Wall’s microphones during a call, press
located on the side of the device. When muted, the
lights on the device will slowly pulse red. To unmute,
just press again.
The Ecosystem
Ceiling
Wall
Hub Table Control
USB: USB Type B
Ethernet: RJ45 connector (requires PoE+)
Frequency response: 50Hz – 16KHz
Broadcast level (peak): 90dB SPL @ 1Khz from 1m (5 watts RMS)
Noise cancellation: > 15dB (without pumping noise)
100% full duplex – no attenuation (in either direction) during full duplex
High-end performance conforms to ITU-T G.167
Acoustic echo cancellation: > 40dB with conversion speed of 40dB/sec
Residual echo is suppressed to the environment noise level, preventing artificial
ducking of signal
15 high-quality beamforming microphones
Two subwoofers: 10 watts (RMS) each & two full range speakers: 4 watts (RMS)
each
Direction-finding algorithm (determines the presence and direction of a speaker)
Beamforming algorithm (forms and directs audio beams towards a defined
direction)
Automatic voice-level adjustment (AGC)
Weight: 7.5 lbs. (3.4 kg)
Dimensions: Length: 48 in. (121.9 cm) Depth: 3.5 in. (8.9 cm) Height: 3.25 in.
(8.3 cm)
Power Consumption: PoE+ 802.3 at Type 2
Operating Systems: Windows 98 and up / Linux / MacOS.
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
Connectors
Specs
Complies with:
The following warranty statement is effective for all Stem Audio products as of May 1st, 2019. Stem
Audio warrants that this product is free of defects in both materials and workmanship. Should any part
of this product be defective, the Manufacturer agrees, at its option, to repair or replace with a like-new
replacement any defective part(s) free of charge (except transportation charges) for a period of two
years for all products. This warranty period begins on the date the end-user is invoiced for the product,
provided the end-user provides proof of purchase that the product is still within the warranty period
and returns the product within the warranty period to Stem Audio or an authorized Stem Audio dealer
according to the Product Return and Repair Policy listed below. All inbound shipping costs are the
responsibility of the end-user, Stem Audio will be responsible for all outbound shipping costs.
Product Return and Repair Policy
1. Return to seller if purchased through an authorized dealerProof of purchase date from reseller
within the warranty period must be provided by the end-userSeller may, at its discretion, provide an
immediate exchange or repair or may return the unit to the manufacturer for repair
2. Return to Manufacturer
a. An RMA (return merchandise authorization) number must be obtained by the end user from Stem
Audio
b. The end-user must return the product to Stem Audio with proof of purchase (showing purchase
date) for a warranty claim, and display the RMA number on the outside of the shipping package.
THIS WARRANTY IS VOID IF:
The product has been damaged by negligence, accident, act of God, or mishandling, or has not been
operated in accordance with the procedures described in the operating and technical instructions; or;
The product has been altered or repaired by other than the manufacturer or an authorized service
representative of the Manufacturer; or; Adaptations or accessories other than those manufactured or
provided by the Manufacturer have been made or attached to the product which, in the determination
of the Manufacturer, shall have affected the performance, safety or reliability of the product; or; The
product’s original serial number has been modified or removed.
NO OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE, APPLIES TO THE PRODUCT.
MANUFACTURER’S MAXIMUM LIABILITY HEREUNDER SHALL BE THE AMOUNT PAID BY THE END
USER FOR THE PRODUCT.
The manufacturer shall not be liable for punitive, consequential, or incidental damages, expenses, or
loss of revenue or property, inconvenience, or interruption in operation experienced by the end-user
due to a malfunction in the purchased product. No warranty service performed on any product shall
extend the applicable warranty period. This warranty extends only to the original end-user and is not
assignable or transferable. This warranty is governed by the laws of the State of California.
For more information or technical support please refer to our website www.stemaudio.com, email us at
[e-mail], or call[phone].
Website:
Email: [e-mail]
Telephone: (949) 877-STEM (7836)
Product Quickstart Guides:
Product Setup Videos:
The Directional Array
During a call, Wall uses proprietary beamforming
technology to locate a legitimate voice source and to
steer an array towards it. This allows Wall to focus on
the speaker in the room and cancel out all other noise.
The beamforming process is dynamic as it adjusts the
direction of the array when the source of sound changes
or moves. In a call, when a voice is detected in the room,
one or multiple blue lights located on the device will
indicate which direction Wall's audio beam is focusing
on. This is the direction that will be heard best by the far-
end of the call (the person you are talking to).
Light Guide
Warranty
Need Some Help?
stemaudio.com/videos
stemaudio.com/manuals
stemaudio.com
Using Wall
Volume Control
Speaker
Change the speaker volume by using to increase,
or to decrease the volume.
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Product Specs