CM890i
Specifications: CM890i
System Type
Frequency Response (- 3 dB)
Low Frequency (-10 dB)
Max. Program Power
Max. Continuous Power RMS
Max. UL program power
Max. SPL dB @ 1 M
Sensitivity dB @ 1W/1M
Impedance (nominal)
Coverage Angle (-6 dB @ 2 kHz)
Coverage Angle (-6 dB @ 8 kHz)
Directivity Factor (Q)
Directivity Index (DI)
Tap Selector
Transformer Taps
70.7 V Output 100 V Output 25 V Output
66 W 113 dB 66 W 113 dB 5 W 102 dB
35 W 110.5 dB 35 W 110.5 dB 2.5 W 99 dB
19 W 108 dB 19 W 108 dB 1.25 W 96 dB
10 W 105 dB 10 W 105 dB 0.75 W 94 dB
5 W 102 dB
Transducers
Low Frequency Driver
High Frequency Driver
Low Frequency Voice Coil
Crossover Frequency
Network Type
Low Pass
High Pass
Enclosure Material
Motor-Board
Grille
Inputs
Colors
Backcan Diameter
Backcan Height
Visible Diameter
Visible Height
Weight
Shipping Weight
Accessories
Included
Optional
Packaging
1
Frequency response is measured in half space.
2
Continuous power rating, EIA-426-B test.
3
UL testing specifies band-limited pink noise over the indicated frequency spectrum.
4
2.83 Volts at a distance of 1 meter.
SoundTube continually develops new product innovations and improvements. Updates to existing
products without prior notice are an example of SoundTube’s drive for constant improvement.
© 2006 SoundTube Entertainment. All rights reserved. PN TS-CM590 REV 04.04.06
Preliminary Technical Information for System Engineers
8” Coax, compression tweeter w/ 1” exit, in-ceiling, ported (66
1
1
2
3
4
Watt transformer for 25/70.7/100 Volt or voice coil / 8 Ohm direct)
77 Hz - 20 kHz
63 Hz - 20 kHz
250 Watts
125 Watts
65 Watts
116 dB
95 dB
8 Ohm
100º
110º
5.35 (Averaged 100 Hz - 10 kHz); 7.89 @ 2 kHz
6.49 dB (Averaged 100 Hz - 10 kHz); 8.97 dB @ 2 kHz
6-Position rotary switch with voice coil direct (8 Ohm)
1 x 203 mm (8 in) Treated fiber cone, cloth surround
1 Compression driver with waveguide and a 25.4 mm (1”) exit
34 mm (1.36 in)
2.4 kHz
12 dB per octave, 2nd order
12 dB per octave, 2nd order
Drawn aluminum backcan with ABS baffle
Cast aluminum
Iridite-plated steel with powder-coat finish
4 Pin, 5 mm Euroblock for individual or daisy chain connection
Black or white
296.7 mm / 11.68 in
201.7 mm / 7.94 in
375.0 mm / 14.76 in
27.5 mm / 1.08 in
6.5 kG / 14.3 lbs
N/A
Tile bridge, Euroblock connector, back cover plate & installation aid
Pre-Construction Bracket (AC-CM8-PCB),
Junction Box (AC-CM-JBOX)
2 per box
In-Ceiling Speaker
Tile bridge included
Preliminary Technical Information
The information in this document reflects
preliminary data. Items including polar
plots, frequency, phase and impedance
response graphs will be added when final
data are available.
Key Features
• BroadBeamHP® waveguide technology
delivers a consistent dispersion pattern
for maximum coverage area per speaker
(up to 10 kHz, EASE
™
documented).
• 66 Watt transformer and high output
(116 dB) for the sound reinforcement and
PA markets.
• One 203 mm (8.0 in) treated fiber driver
and one compression driver with a 25.4 mm
(1 in) exit mounted to a proprietary castaluminum M8
™
baffle and heat sink.
• 95 dB Average sensitivity offers highoutput capabilities and reduced amplifi
cation costs.
• Separate tool-free magnetic grille &
bezel assembly for ease of install and
in-field painting.
• Iridite-plated, steel grille with protective
powder-coated finish for lasting durability.
• Rapid-installation blind mount fixed
wing mounting mechanism with con
stant tension design affixes to ceiling
thickness tolerances ranging from 6.4
mm (0.25 in) to 42.9 mm (1.69 in).
• UL 2043 approval pending.
• Included accessories: Tile bridge,
Euroblock connector & paint mask
/installation aid.
• Optional accessories: Pre-Construc
-
tion Bracket
Description
The CM890i is a premium 8.0” 2-way,
in-ceiling, high-efficiency, high-SPL
loudspeaker for distributed or 8 Ohm
applications. The CM890i incorporates
a dedicated 8.0” treated fiber driver and
high-power compression transducer with
a BroadBeamHP
consistent dispersion pattern and superb
intelligibility for the foreground music,
sound reinforcement and PA markets. The
CM890i also incorporates a 66 Watt trans
former with a 6-position tap switch and
voice coil/8 Ohm direct position. Mount
ing hardware and tile-bridge are included
and feature a fast and secure constant-ten
sion fixed wing mounting system.
®
waveguide to deliver a
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CM890i
Preliminary Technical Information for System Engineers
In-Ceiling Speaker
Frequency Response
N/A
Phase/Impedance Reponse
Applications
Engineered for installations requiring full-range background / foreground
music plus paging, the CM890i delivers a
smooth and even coverage pattern. Ideal
for casinos, convention centers, ware
houses, nightclubs, gyms, aerobic rooms,
airports, super stores, arenas, theme
parks, transportation and shipping cen
ters, stadiums and other high-SPL or longthrow applications.
For professional sound reinforcement
applications, the CM890i includes a castaluminum M8
plated, powder-coated steel grille and a
durable aluminum enclosure design.
™
motor-board, iridite-
-
-
BroadBeamHP® Wide
Dispersion Technology
SoundTube’s proprietary BroadBeamHP
high-frequency compression driver with
a 1” exit mated to a treated fiber woofer.
The BroadBeamHP
a 90º dispersion pattern across the upper
registers of the frequency spectrum (up to
10 kHz, EASE
®
technology incorporates a
®
technology delivers
™
documented). The result
N/A
Beamwidth (-6 dB) Directivity Index (DI)
N/A N/A
CM890i
In-Ceiling Speaker
Preliminary Technical Information for System Engineers
is an audio system with fewer speakers,
reduced power needs, shorter installation
time and cost savings on shipping and labor.
Patented SoundTube
Technologies
SoundTube entertainment is consistently developing new technologies that
enhance audio product performance.
SoundTube Entertainment innovations
are protected by multiple U.S. and
international patents, which explicitly
cover SoundTube dome, enclosure
mounting and dispersion technolo
gies. SoundTube Entertainment actively
defends its patents in order to protect
SoundTube resellers and end-users.
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Technical Data and
Specification Tools
Technical Data
SoundTube Entertainment strives to
provide complete and effective technical
information and data to dealers,
engineers and designers. All data are
available from SoundTube Entertain
ment or at www.soundtube.com.
-
Data Acquisition
All performance data acquired at
SoundTube’s Technical Measurement
Center (TMC) are analyzed using a
variety of standard measurement tech
niques, including Measured Length
Sequence (MLS) and Time Delay Spec
trometry (TDS). Performance, develop
ment and data acquisition tools include:
Gold Line TEF 20, CLIO, LMS, LEAP, and
proprietary modeling software. EASE
data are acquired through an automated
TEF 20/Outline/EASE
EASE™ Data
SoundTubeSPEC™
SoundTube speaker placement software.
™
interface.
– 3-D polar plots.
– Proprietary
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-
™
Architectural Specifications
The loudspeaker shall consist of a 203
mm (8 in) low-frequency transducer and
a high frequency transducer with a 1”
exit and a frequency-dividing network
installed in a ported enclosure. The lowfrequency voice coil diameter shall be 34
mm (1.36 in).
The performance specifications of a
typical production unit shall be as fol
-
lows: Useable frequency response shall
extend from 63 Hz – 20 kHz (-10 dB, no
external equalization). Measured sensitiv
ity (2.83 Volt input, 1 meter) shall be at
least 95 dB. The speaker shall have a nomi
nal impedance of 8 Ohms and available
for 25/70.7/100 Volt modes with a voice
coil/8 Ohm direct. The frequency-dividing
network shall have a crossover frequency
of 2.4 kHz with a slope of 12 dB per octave
(2nd order). Rated power capacity shall
be at least 125 Watts continuous power
(RMS), and shall conform to EIA-426-B
testing. Maximum continuous output at 1
meter shall be 116 dB.
The low-frequency transducer shall
have a treated fiber cone and cloth sur
round.
Installation for the CM890i shall be
by 2-screw blind mount, constant ten
sion winged assembly and shall attach
to ceiling thickness tolerances ranging
from 6.4 mm (0.25 in) to 42.9 mm (1.69
in). The external wiring input connector
shall be a 4-pin, 5 mm Euroblock connec
tor for 8 Ohm or distributed systems and
shall accept from 10 – 22 gauge wire. The
maximum backcan dimension shall be
no more than 201.7 mm (7.94 in) in height
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Polar Plots
N/A
Technical data, EASE™ plots, SoundTubeSPEC™ software & product downloads available at www.soundtube.com
CM890i
Preliminary Technical Information for System Engineers
In-Ceiling Speaker
Mechanical Drawings
Side
201.7 mm
(7.94 in)
375 mm (14.76 in)
27.5 mm (1.08 in)
Included Accessories
Max.
42.9 mm (1.69 in)
Fixed Wing Mounting System
Paint Mask
Optional Accesories
Min.
6.4 mm (0.25 in)
296.7 mm
(11.68 in)
600.1 mm
(23.62 in)
Tile Bridge
Top
325.1 mm
(12.80 in)
428.2
(16.86 in)
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 18gauge 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.
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Pre-Construction Bracket (AC-CM8-PCB) Junction Box (AC-CM-JBOX)
SoundTube Entertainment manufactures a complete line of speakers for:
Open-Ceiling • In-Ceiling • Sur face-Mount • Outdoor • Sound-Focusing
All SoundTube products are designed and engineered in the USA.
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