In-Ceiling Speaker
CM690i
Preliminary Technical Information for System Engineers
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).
Tile bridge included
Specifications: CM690i
System Type
6.5” Coax, compression tweeter w/ 1” exit, in-ceiling, ported (66
Watt transformer for 25/70.7/100 Volt or voice coil / 8 Ohm direct)
Frequency Response (- 3 dB)1
Low Frequency (-10 dB)1
Max. Program Power
Max. Continuous Power RMS2
Max. UL program power3
Max. SPL dB @ 1 M
Sensitivity dB @ 1W/1M4
Impedance (nominal)
Coverage Angle (-6 dB @ 2 kHz)
Coverage Angle (-6 dB @ 8 kHz)
Directivity Factor (Q)
72 Hz - 22 kHz
64 Hz - 22 kHz
200 Watts
100 Watts
70 Watts
113 dB
93 dB
8 Ohm
• 66 Watt transformer and high output
(113 dB) for the sound reinforcement
and PA markets.
• One 165 mm (6.5 in) treated fiber driver and
one compression driver with a 25.4 mm
(1 in) exit mounted to a proprietary cast-
aluminum M6™ baffle and heat sink.
120º
150º
• 93 dB Average sensitivity offers high-
output capabilities and reduced amplifi-
cation costs.
4.97 (Averaged 100 Hz - 10 kHz); 6.47 @ 2 kHz
6.22 dB (Averaged 100 Hz - 10 kHz); 8.11 dB @ 2 kHz
6-Position rotary switch with voice coil direct (8 Ohm)
Directivity Index (DI)
Tap Selector
• Separate tool-free magnetic grille &
bezel assembly for ease of install and
in-field painting.
Transformer Taps
70.7 V Output
66 W 111 dB
35 W 108.5 dB
19 W 106 dB
10 W 103 dB
5 W 100 dB
100 V Output
66 W 111 dB
35 W 108.5 dB
19 W 106 dB
10 W 103 dB
25 V Output
5 W 100 dB
2.5 W 97 dB
1.25 W 94 dB
0.75 W 92 dB
• Iridite-plated, steel grille with protec-
tive 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).
Transducers
Low Frequency
High Frequency
Low Frequency Voice Coil
Crossover Frequency
1 x 165 mm (6.5 in) Treated fiber cone, cloth surround
1 Compression driver with waveguide and a 25.4 mm (1”) exit
34 mm (1.36 in)
3 kHz
• UL 2043 pending.
Network Type
Low Pass
High Pass
Enclosure Material
Motor-Board
Grille
• Included accessories: Tile bridge, Euroblock
connector & paint mask/installation aid.
18 dB per octave, 3rd order
18 dB per octave, 3rd 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
• Optional accessories: Pre-Construction
Bracket & Junction Box.
• High quality black or white paint finish.
Inputs
Colors
Description
Backcan Diameter
Backcan Height
Visible Diameter
Visible Height
Weight
The CM690i is a premium 6.5” 2-way,
in-ceiling, high-efficiency, high-SPL
loudspeaker for distributed or 8 Ohm
applications. The CM690i incorporates
a dedicated 6.5” treated fiber driver and
high-power compression transducer with
a BroadBeamHP® waveguide to deliver a
consistent dispersion pattern and superb
intelligibility for the foreground music,
sound reinforcement and PA markets. The
CM690i incorporates a 66 Watt transformer
with a 6-position tap switch and voice
coil/8 Ohm direct position. Mounting
hardware and tile-bridge are included and
feature a fast and secure constant-tension
fixed wing mounting system.
5.8 kG / 12.8 lbs
N/A
Shipping Weight
Accessories
Included
Optional
Tile bridge, Euroblock connector, back cover plate & installation aid
Pre-Construction Bracket (AC-CM8-PCB),
Junction Box (AC-CM-JBOX)
Packaging
2 per box
1
2
3
4
Frequency response is measured in half space and includes a low-frequency peak > + 3 dB.
Continuous power rating, EIA-426-B test.
UL testing specifies band-limited pink noise over the indicated frequency spectrum.
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-CM690 REV 04.04.06
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In-Ceiling Speaker
CM690i
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.
extend from 64 Hz – 22 kHz (-10 dB, no
external equalization). Measured sensitiv-
ity (2.83 Volt input, 1 meter) shall be at
least 93 dB. The speaker shall have a nomi-
nal impedance of 8 Ohms and be 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 3 kHz with a slope of 18 dB per octave
(3rd order). Rated power capacity shall
be at least 100 Watts continuous power
(RMS), and conform to EIA-426-B testing.
Maximum continuous output at 1 meter
shall be 113 dB.
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™ interface.
Patented SoundTube
Technologies
SoundTube entertainment is consis-
tently 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.
EASE™ Data – 3-D polar plots.
The low-frequency transducer shall
have a treated fiber cone and cloth sur-
round.
SoundTubeSPEC™ – Proprietary
SoundTube speaker placement software.
Architectural Specifications
Installation for the CM690i shall be by
2-screw blind mount, constant tension
winged assembly and shall attach to ceil-
ing 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 connector for
8 Ohm or distributed systems and shall
accept from 10 – 22 gauge wire. The maxi-
mum backcan dimension shall be no more
than 201.7 mm (7.94 in) in height by 296.7
mm (11.68 in) in diameter. The maximum
The loudspeaker shall consist of a 165
mm (6.5 in) low-frequency transducer
and a high frequency transducer with
a 1” exit and a frequency-dividing net-
work installed in a ported enclosure.
The low-frequency voice coil diameter
shall be 34 mm (1.36 in).
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-
The performance specifications of a
typical production unit shall be as fol-
lows: Useable frequency response shall
Polar Plots
N/A
™
™
Technical data, EASE plots, SoundTubeSPEC software & product downloads available at www.soundtube.com
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In-Ceiling Speaker
CM690i
Preliminary Technical Information for System Engineers
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 aluminum.
Mechanical Drawings
Side
Top
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.
296.7 mm
(11.68 in)
201.7 mm
(7.94 in)
375 mm (14.76 in)
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.
27.5 mm (1.08 in)
Included Accessories
The CM690i has an optional Pre-
Construction Bracket (AC-CM8-PCB)
that shall be compatible with an
325.1 mm
(12.80 in)
600.1 mm
(23.62 in)
optional Junction Box (AC-CM-JBOX).
An 18-gauge wire whip and Euroblock
connector shall be included with the
Junction Box. The maximum dimen-
sions 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.
Max.
Min.
42.9 mm (1.69 in)
6.4 mm (0.25 in)
Fixed Wing Mounting System
428.2
(16.86 in)
Tile Bridge
The system shall be the CM690i with
mounting hardware for both low- and
high- impedance applications.
SoundTube Entertainment
Paint Mask
6430 North Business Park Loop
Park City, Utah 84098
Phone 435.647.9555
Optional Accesories
Fax
435.647.9666
Toll Free 800.647.TUBE
All SoundTube products come
with a 5-year limited warranty.
Pre-Construction Bracket (AC-CM8-PCB)
Junction Box (AC-CM-JBOX)
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.
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