The maximum backcan dimensions
shall be no more than 197 mm (7.75 in.)
in height by 219.2 mm (8.63 in.) in diam-
eter. The maximum visible dimensions
shall be no more than 24.4 mm (0.96 in.)
in height by 271.9 mm (10.71 in.) in diam-
eter. The backcan shall be constructed of
aluminum.
The grille shall be constructed of an
ABS bezel and powder-coated steel for
lasting performance in the elements.
The affixed grille and bezel shall be
mounted to the speaker enclosure
(backcan) via neodymium magnets and
included safety leash. Also included are
a paint mask for in-field painting and
an installation aid that serves as a hand-
hold during mounting.
The system shall include a 21-gauge
galvanized steel support backing plate
(tile bridge) to reinforce the ceiling mate-
rial and tile support rails. The tile bridge
shall be color-coded (blue) to simplify
ordering and inventory tracking. The
maximum tile bridge dimensions shall
be no more than 600.1 mm (23.62 in.) in
length by 323.9 mm (12.75 in.) in width
and 11 mm (0.41 in.) in height with a 228.6
mm (9.0 in.) cutout for speaker mounting.
The CM500i has an optional color-
coded (blue) pre-construction bracket
(AC-CM5-PCB) that shall be compat-
ible with an optional junction box
(AC-CMi-JBOX). A 2-foot, 18-gauge
wire whip and Euroblock connector
shall be included with the junction box.
The maximum dimensions of the pre-
construction bracket shall be no more
than 635 mm (25.0 in.) in length by 381
mm (15.0 in.) in width and 128 mm (5.0
in.) in height (includes affixed junction
box) with a 228.6 mm (9.0 in.) cutout for
speaker mounting.
The system shall be the SoundTube
CM500i for both low- and high-imped-
ance 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.
architectural specs for system engineers
SoundTubeSPEC™ – Proprietary speaker
placement software
Acquisition and Verification
All data for SoundTube speakers are
independently collected from and veri-
fied by NWAA Labs (www.nwaalabs.
com) using their proprietary MACH
testing system. All data are collected and
analyzed according to ASTM, ISO and
AES standards using EASERA, TEF and
MLSSA. Full balloon data including both
phase and magnitude is compiled into
a variety of formats including EASE 4.x,
GLL and CLF.
Architectural Specifications
The loudspeaker shall consist of a 133
mm (5.25 in.) low-frequency transducer
and a 25 mm (1.0 in.) high-frequency trans-
ducer with a crossover network installed
in the enclosure. The low-frequency voice
coil diameter shall be 25 mm (1.0 in.).
Performance specifications of a typi-
cal production unit shall be as follows:
Useable frequency response shall extend
from 55 Hz – 22 kHz (-10 dB, half space).
Measured sensitivity (2.83-volt input,
1 meter) shall be at least 86.5 dB. The
speaker shall have a nominal impedance
of 8 ohms. The speaker shall be available
for 25-, 70.7- and 100-volt modes and shall
include a six-position tap switch with a
voice coil direct position. The frequency-
dividing network shall have a crossover
frequency of 3 kHz with slopes of 12 dB
per octave (2nd order) for both low- and
high-pass filters. Rated power capac-
ity shall be at least 75 watts continuous
(RMS) and conform to EIA-426-B testing.
Maximum continuous output at 1 meter
shall be 105.5 dB.
The low-frequency transducer shall
have a polypropylene cone with rubber
surround. The high-frequency transducer
shall be constructed of aluminum with a
proprietary BroadBeam
®
waveguide.
Installation for the CM500i shall be by
two-screw, blind-mount, constant-tension
winged assembly and shall attach to
ceiling thicknesses ranging from 6.4 mm
(0.25 in.) to 42.9 mm (1.69 in.). The fixed-
wing assembly shall be constructed of
steel. The external wiring input connec-
tor shall be a four-pin, 5 mm Euroblock
for 8 ohm or distributed systems and
shall accept from 10 – 22-gauge wire.
Applications
Designed for in-ceiling background to
mid-level SPL applications, the CM500i
is ideal for music and paging in court-
houses, schools, retail stores, grocery
stores, restaurants, hotels, casinos, muse-
ums, conference rooms and churches.
For applications where additional bass
is required, SoundTube’s CM1001d-T
10-inch subwoofer provides low-end
response down to 41 Hz.
BroadBeam
®
Wide
Dispersion Technology
More than three years in development,
SoundTube’s proprietary BroadBeam
®
technology incorporates a high-frequency
waveguide mated to a 1-inch convex
aluminum tweeter. The BroadBeam
®
high-frequency waveguide delivers a
consistent dispersion pattern across the
upper registers of the frequency spec-
trum (up to 10 kHz, independently veri-
fied). The result is an audio system with
better edge-to-edge coverage, reduced
power needs, shorter installation time
and cost savings on shipping and labor.
Patented SoundTube
Technologies
SoundTube Entertainment and the
MSE Audio Group constantly develop
new technologies which enhance audio
product performance. SoundTube Enter-
tainment innovations are protected by
multiple U.S. and international patents,
which explicitly cover SoundTube dome,
enclosure and dispersion technologies.
The MSE Audio Group actively defends
its patents in order to protect SoundTube
resellers and end-users.
Technical Data and
Specification Tools
Technical Data
SoundTube Entertainment strives to
provide complete and effective technical
information and data to dealers, engi-
neers and designers. All data are avail-
able from SoundTube Entertainment or at
www.soundtube.com.
Technical data and downloads include:
EASE™ data – 3-D polar plots.
EASE™ Address – 2-D modeling for dis-
tributed systems
Autodesk® Revit® software
Tech Sheets – Technical information and
CM500i
In-Ceiling Speaker
Technical Information for System Engineers
