Tech Sheet - Soundtube

CM31-EZ
In-Ceiling Speaker
Technical Information for System Engineers
Key Features
Specifications: CM31-EZ
System Type
Impedance (nominal) 1
Sensitivity dB @ 2.83 V/1 m
Sensitivity dB @ 1 W/1 m 2
Frequency Response (- 3 dB) 3
Frequency Response (-10 dB) 3
Max. Program Power 4
Max. Continuous Power RMS 5
Max. Power SPL @ 1 m 6
Coverage Angle (-6 dB @ 2 kHz)
Coverage Angle (-6 dB @ 10 kHz)
Coverage Angle (averaged from 2 to
10 kHz)
Directivity Factor (Q)
Directivity Index (DI) dB
Tap Selector (transformer accessory
only)
Transducer - Full-Range Driver
Low Frequency Voice Coil
Enclosure Material
Grille
Inputs
Colors
Backcan Diameter
Backcan Height
Visible Height
Visible Diameter
Weight
Shipping Weight
Packaging
Included Accessories
Optional Accessories
Regulatory - UL
Regulatory - CE
RoHS
1
Impedance listed per IEC 60268-5 with a minimum
less than 80% the nominal impedance
2
1 W 1 m sensitivity determined using nominal
impedance
3
Frequency response measured in half or full space
as dictated by speaker mounting configuration
4
Max program power is 3 dB above max
continuous power
5
6
Continuous power rating, EIA-426-B test
Max output based on max continuous power
Tile bridge included
3 inch full-range, in-ceiling (10 watt transformer for 25/70.7/100-volt
or transformer bypass position)
8 ohm
85.0 dB
85.0 dB
218 Hz - 14 kHz
135 Hz - 22 kHz
40 W
20 W
98.0 dB
175°
45°
120°
4.5 (averaged 100Hz - 10kHz), 3.5 (2kHz)
5.3 (averaged 100Hz - 10kHz), 5.2 (2kHz)
Six-position rotary switch or transformer bypass position
76.1 mm (3.0 in.) Polypropylene driver with butyl rubber surround
19.0 mm (0.75 in.)
ABS baffle, steel backcan
Corrosion-resistant, powder-coated aluminum
Hardwire lead
Black or white
139.7 mm (5.5 in.)
88.9 mm (3.5 in.)
15.2 mm (0.6 in.)
160.6 mm (6.3 in.)
1.4 kg (3.1 lbs.)
1.8 kg (4.0 lbs.)
One per box
Tile Bridge, conduit connector, paint mask and wire nuts
Pre-construction bracket (AC-CM3-PCB), 10 inch powered
subwoofer (SM1001p)
UL 1480 (UEAY) and 2043 approved
Approved
Approved
Transformer Taps
70.7 V Output
10 W
95.0 dB
100 V Output
10 W
95.0 dB
25 V Output
1.3 W
86.0 dB
5W
92.0 dB
5W
92.0 dB
0.7 W
83.5 dB
2.5 W
89.0 dB
2.5 W
89.0 dB
0.4 W
81.0 dB
1.3 W
86.0 dB
1.3 W
86.0 dB
0.2 W
78.0 dB
0.7 W
83.5 dB
0.1 W
75.0 dB
© 2012 SoundTube Entertainment. All rights reserved. CM31-EZ REV 02.14.12
• One 3 inch (76.2 mm) full-range highextrusion, high-fidelity polypropylene
driver with butyl rubber surround.
• Weatherized components for indoor/outdoor applications.
• Shallow 3.5 inch (88.9 mm) deep all-steel
backcan with integrated driver and baffle
configuration.
• Ultra-compact design with a total visible
footprint of less than 6.3 inch (160.6 mm)
diameter.
• Rapid installation, blind-mount, fixedwing mounting mechanism with constant
tension design affixing to wall thicknesses
ranging from 0.1 in. (2.5 mm) to 1.5 in.
(38.1 mm).
• Corrosion-resistant, powder-coated aluminum grille with snap fit attachment.
• UL 1480 (UEAY) and 2043 approved.
• High quality black or white paint finish.
• Included accessories: Tile bridge.
• Optional accessories: Pre-construction
bracket (AC-CM3-PCB) and 10-inch powered subwoofer (SM1001p).
Description
The CM31-EZ is a premium full-range
3-inch in-ceiling speaker for applications
requiring 8 ohm or distributed audio solutions. The CM31-EZ incorporates low profile
grille with a total visible footprint of 6.3 inch
diameter and an integrated backcan and
driver design for ultra compact in-ceiling
installations. The in-ceiling speaker includes
a six-position tap switch with a transformer
bypass position. A tile bridge and mounting hardware are included and feature a fast
and secure constant tension SpeedWing™
mounting system. The CM31-EZ incorporates
weatherized components for indoor/outdoor
applications.
Applications
Engineered for rapid installation and
low profile mounting for smaller venues,
the CM31-EZ is ideal for retail, restaurants,
conference rooms, educational facilities or
any setting where full-range intelligibility,
low profile design and in-ceiling installation ease are paramount. For additional
bass response down to 41 Hz (- 10 dB), the
SM1001p powered 10-inch subwoofer may be
incorporated.
CM31-EZ
In-Ceiling Speaker
Technical Information for System Engineers
Patented SoundTube
Technologies
SoundTube Entertainment and the
MSE Audio Group constantly develop
new technologies which enhance audio
product performance. SoundTube Entertainment 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, engineers and designers. All data are available from SoundTube Entertainment or at
www.soundtube.com.
Technical data and downloads include:
production unit shall be as follows: Useable
frequency response shall extend from 135
Hz – 22 kHz (- 10 dB). Measured sensitivity
(2.83 volt input, 1 meter) shall be at least
85.0 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 transformer bypass position. Rated
power capacity shall be at least 20 watts
continuous (RMS) and conform to EIA426-B. Maximum continuous power output
at 1 meter shall be 98.0 dB.
Installation for the speaker shall be by
two-screw, blind-mount, constant tension
fixed-wing assembly and shall attach to
ceiling thicknesses ranging from 2.5 mm
(0.1 in.) to 38.1 mm (1.5 in.). A secondary
attachment point has been included on the
back of the unit. The fixed wing assembly
shall be constructed of steel. The external
wiring shall be by hardwire lead and the
speaker shall include a UL-listed conduit
connector.
Autodesk® Revit® software
The maximum backcan dimensions
shall be no more than 139.7 mm (5.5 in.)
in diameter by 88.9 mm (3.5 in.) in height.
The maximum visible dimension shall be
no more than 15.2 mm (0.6 in.) in height by
160.6 mm (6.3 in.) in diameter.
Tech Sheets – Technical information and
architectural specs for system engineers
The system shall be for indoor/outdoor
applications.
SoundTubeSPEC™ – Proprietary speaker
placement software
The enclosure shall be constructed of
steel. The grille shall be constructed of
powder-coated aluminum for lasting performance and affix to the speaker baffle
via snap fit.
EASE™ data – 3-D polar plots.
EASE™ Address – 2-D modeling for distributed systems
Acquisition & Verification
All data for SoundTube speakers are
independently collected from and verified 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 transducer shall consist
of one full-range 76.2 mm (3.0 in.) polypropylene cone with butyl rubber surround.
The low-frequency voice coil diameter shall
be 19.0 mm (0.75 in.).
Performance specifications for a typical
The system shall be the CM31-EZ for
low- or 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.
CM31-EZ
In-Ceiling Speaker
Technical Information for System Engineers
Graphs and Plots
Phase/Impedance Response
Frequency Response
110
Frequency Response
Horizontal Beamwidth (- 6dB)
180
100
150
90
80
120
Degrees
dBSPL
70
60
50
40
90
60
30
30
10000
20000
10000
20000
5000
2000
Directivity Index (DI)
Vertical Beamwidth (- 6dB)
20
150
15
120
10
dB
90
60
Directivity Index (DI)
5
0
-3dB
-6dB
-9dB
30
-5
0
Hertz
5000
2000
1000
500
200
100
50
20
20000
5000
2000
10000
Hertz
1000
500
200
100
50
-10
20
Degrees
1000
Hertz
Vertical Beamwidth (-6 dB)
180
500
20
20000
10000
5000
2000
1000
500
200
100
50
20
Hertz
50
0
0
200
-3dB
-6dB
-9dB
10
100
20
CM31-EZ
In-Ceiling Speaker
Technical Information for System Engineers
Horizontal
Vertical
Polar Plots
125Hz 1/3 Oct
125 Hz
330
300
250Hz 1/3 Oct
250 Hz
Horiz Polar
Vert Polar
0
0
330
30
-12
-12
-12
-12
300
60
300
60
-18
240
120
210
210
150
210
150
4,000 Hz
Horiz Polar
Vert Polar
0
0
330
30
240
120
210
150
8,000 Hz
Horiz Polar
Vert Polar
30
10,000 Hz
Horiz Polar
Vert Polar
0
0
150
180
8KHz 1/3 Oct
330
90
-36
180
4KHz 1/3 Oct
0
0
270
120
180
2KHz 1/3 Oct
90
240
120
180
-30
-36
270
90
60
-24
-30
-36
30
-18
-24
-30
270
90
300
60
-18
-24
240
10KHz 1/3 Oct
Horiz Polar
Vert Polar
0
0
330
30
-6
-6
-6
-6
-12
-12
-12
-12
300
60
-18
60
-18
300
90
-36
240
120
210
240
120
210
150
90
90
240
150
210
-36
270
120
90
240
120
210
150
180
180
-30
-36
270
60
-18
-30
-36
270
30
-24
-24
-30
-30
300
60
-18
-24
-24
270
0
0
-6
-36
300
330
30
Horiz Polar
Vert Polar
-6
-30
330
1KHz 1/3 Oct
-6
-24
2,000 Hz
0
0
330
30
1,000 Hz
Horiz Polar
Vert Polar
-6
-18
270
0
0
500Hz 1/3 Oct
500 Hz
Horiz Polar
Vert Polar
150
180
180
Technical data, EASE™ plots, SoundTubeSPEC™ software and product downloads available at www.soundtube.com
Minimum/Maximum Ceiling
Mechanical Drawings
Side
Thickness
Top
89.4 mm
(3.5 in)
105.7 mm
(4.2 in)
139.1 mm
(5.5 in)
Min.
2.5 mm (0.1 in)
ø 171.3 mm
(6.7 in)
160.6 mm (6.3 in)
Max.
38.1 mm (1.5 in)
Included Accessories
16.3 mm
(0.64 in)
16.3 mm
(0.6 in)
Optional Accessories
600.0 mm (23.62 in)
143.8 mm
(5.66 in)
141.2 mm
(5.56 in)
635.0 mm (25.00 in)
215.9 mm
(8.50 in)
635.0 mm (25.00 in)
8.38 mm
(0.33 in)
Pre-Construction Bracket (AC-CM3-PCB)
211.1 mm
(8.31 in)
Tile Bridge
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.