Optional Accesories
CM890i
In-Ceiling Speaker
Preliminary Technical Information for System Engineers
by 296.7 mm (11.68 in) in diameter. The
maximum visible dimensions shall be
no more than 27.5 mm (1.08 in) in height
by 375 mm (14.76 in) in diameter. The
backcan shall be constructed of alumi-
num.
The system shall include a 16-gauge
painted steel support backing plate (tile
bridge) to reinforce the ceiling material
and tile support rails. The maximum
tile bridge dimensions shall be no more
than 600.1 mm (23.62 in) in length by
428.2 mm (16.86 in) in width and 10.4
mm (0.41 in) in thickness with a 325 mm
(12.80 in) cutout for speaker mounting.
The grille shall be constructed of iri-
dite-plated, powder-coated steel with an
ABS bezel. The affixed grille and bezel
shall be mounted to the speaker enclo-
sure (backcan) via magnetic attachment
and include a safety wire. Also included
are a paint mask for in-field painting
and an installation aid that serves as a
handhold during mounting.
The CM890i has an optional Pre-Con-
struction Bracket (AC-CM8-PCB) that
shall be compatible with an optional
Junction Box (AC-CM-JBOX). An 18-
gauge wire whip and Euroblock connec-
tor shall be included with the Junction
Box. The maximum dimensions of the
Pre-Construction Bracket shall be no
more than 635 mm (25 in) in length by
457.2 mm in width and 127 mm (5 in) in
thickness with a 326.1 (12.85 in) cutout
for speaker mounting.
The system shall be the CM890i with
mounting hardware for both low- and
high- impedance applications.
SoundTube Entertainment
6430 North Business Park Loop
Park City, Utah 84098
Phone 435.647.9555
Fax
435.647.9666
Toll Free 800.647.TUBE
www.soundtube.com
All SoundTube products come
with a 5-year limited warranty.
SoundTube Entertainment manufactures a complete line of speakers for:
Open-Ceiling • In-Ceiling • Surface-Mount • Outdoor • Sound-Focusing
All SoundTube products are designed and engineered in the USA.
Pre-Construction Bracket (AC-CM8-PCB)
Junction Box (AC-CM-JBOX)
Mechanical Drawings
Included Accessories
Fixed Wing Mounting System
201.7 mm
(7.94 in)
375 mm (14.76 in)
27.5 mm (1.08 in)
Max.
42.9 mm (1.69 in)
Tile Bridge
600.1 mm
(23.62 in)
325.1 mm
(12.80 in)
Paint Mask
296.7 mm
(11.68 in)
428.2
(16.86 in)
Min.
6.4 mm (0.25 in)
Side
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