Phase Technology Speaker CM42 EZs User Manual

In-Ceiling Speaker  
CM42-EZs  
Technical Information for System Engineers  
Key Features  
• Engineered for applications with  
limited plenum space incorporating a  
SoundTube-specific shallow backcan  
with an installed depth of only 3.5  
inches.  
• One 102 mm (4 in) treated fiber woofer  
with cloth surround and one 19 mm (0.75  
in) silk tweeter.  
Specifications: CM42-EZs  
Tile bridge included  
• Reduced amplification costs with  
maximum efficiency including 87.5 dB  
sensitivity and16 Ohm impedance.  
System Type  
4" Coax, in-ceiling, sealed (20 Watt transformer for  
25/70.7/100 Volt or 16 Ohm direct)  
Impedance (nominal)  
16 Ohm  
84.5 dB  
87.5 dB  
160 Hz - 20 kHz  
125 Hz - 22 kHz  
40 w  
20 w  
100.5 dB  
20 w  
Sensitivity dB @ 2.83V/1M  
Sensitivity dB @ 1W/1M 1  
Frequency Response (- 3 dB) 2  
Frequency Response (-10 dB) 2  
Max. Program Power 3  
Max. Continuous Power RMS 4  
Max. Power SPL @ 1 M 5  
Max. SPL @ 3 dB Distortion 6  
Coverage Angle (-6 dB @ 2 kHz)  
Coverage Angle (-6 dB @ 10 kHz) 95º  
Coverage Angle  
Directivity Factor (Q)  
Directivity Index (DI) dB  
Tap Selector  
• Superior voice intelligibility with an  
average coverage angle of 100° (Indepen-  
dently verified, 2 – 10 kHz).  
• Easy-access 5-position tap switch for  
25/70.7/100 Volt and 16 Ohm settings  
allows for easy ordering, stocking and  
installation.  
170º  
• Incorporates a painted steel grille for  
lasting durability.  
100º (Avg. from 2 - 10 kHz)  
• UL 1480 & 2043, cUL, CE (EMC Direc-  
tive 89/366/EEC, EN55020, EN55013)  
approved.  
4.3 (Avg. 100 Hz - 10 kHz) ; 4.2 (2 kHZ)  
5.7 dB (Avg. 100 Hz - 10 kHz) ; 6.2 dB (2 kHz)  
5-Position rotary switch with 16 ohm direct  
Transducer - Low Frequency Driver 102 mm (4 in) Treated fiber cone, cloth surround  
Transducer - High Frequency Driver 19 mm (0.75 in) Silk tweeter  
• Adaptable to material thicknesses  
ranging from 0.00 in (0.0 mm) to 1.50 in  
(22.9 mm).  
Low Frequency Voice Coil  
Crossover Frequency  
Network Type: Low Pass  
Network Type: High Pass  
Enclosure Alignment  
Enclosure Material  
Grille  
12.70 mm / 0.50 in  
5.0 kHz  
12dB per octave, 2nd order  
6 dB per octave, 1st order  
Sealed  
• Included accessories: Tile bridge, UL  
listed 0.5” flex conduit clamp, paint  
shield & 2 wire nuts.  
Drawn steel backcan with ABS baffle  
Painted Steel  
• Optional accessories: Color-coded  
(orange) pre-construction bracket  
(AC-CM4-PCB), junction box (AC-CM-EZ-  
JBOX).  
Inputs  
Colors  
18-Gauge hard wired leads  
Black or white  
Backcan Diameter  
Backcan Height  
Visible Diameter  
Visible Height  
5.78 in / 146.8 mm  
3.75 in / 95.3 mm  
7.50 in / 190.5 mm  
0.33 in / 8.4 mm  
• High-quality black or white painted  
finish. Custom colors available.  
Description  
Mounting Hole Diameter  
Min / Max Ceiling Thickness  
Weight  
6.50 in / 165.1 mm  
0.00 in / 0.0 mm – 1.5 in / 38.1 mm  
4.0 lb / 1.8 kg  
The CM42-EZs is a 4” coaxial 2-way  
blind-mount in-ceiling speaker which  
delivers true high efficiency and perfor-  
mance across the operating bandwidth.  
By incorporating a 4" treated-fiber driver  
with cloth surround in a sealed drawn  
steel backcan, this speaker delivers maxi-  
mum frequency response (125 Hz – 22  
kHz, - 10 dB) in a compact design.  
Mounting hardware is included and  
features a constant-tension mounting  
system with a 21 gauge “full-metal” steel  
tile bridge ensuring rapid and secure  
installation in any sheetrock or drop-tile  
application. For easy ordering, stocking  
and installation, this series includes a  
color-coded (green) tile bridge, optional  
pre-construction bracket, and a 5-posi-  
tion tap switch for 25, 70.7 & 100 V appli-  
cations with voice coil/16 Ohm bypass.  
Shipping Weight  
Accessories  
5.0 lb / 2.3 kg  
I n c l u d e d  
Tile bridge, UL listed flex conduit clamp, paint shield, hole  
template, wire nuts  
Optional  
Pre-Construction Bracket (AC-CMEZ42-PCB) ; Junction Box  
(AC-CM-EZ-JBOX)  
1 per box  
Packaging  
Regulatory - UL  
Regulatory - CE  
1480 & 2043 Approved  
Approved  
1
Transformer Taps  
1w1m sensitivity determined using nominal  
impedance  
70.7 V Output  
100 V Output  
25 V Output  
2.5 w 91.5 dB  
1 w 88.5 dB  
2
3
Frequency response measured in half or  
full space as dictated by speaker mounting  
configuration  
20 w 100.5 dB 20 w 100.5 dB  
10 w 97.5 dB 10 w 97.5 dB  
Max program power is 3 dB above max  
continuous power  
5 w 94.5 dB  
5 w 94.5 dB 0.63 w 85.5 dB  
0.31 w 82.5 dB  
2.5 w 91.5 dB  
4
5
6
Continuous power rating, EIA-426-B test  
Max output based on max continuous power  
Max useable SPL based on testing  
by NWAA Labs  
© 2008 SoundTube Entertainment. All rights reserved. PN-TS-CMEZ REV 06.05.08  
 
In-Ceiling Speaker  
CM42-EZs  
Technical Information for System Engineers  
for added security, or where required  
by code.  
Performance specifications of a typi-  
cal production unit shall be as follows:  
Usable frequency range shall extend  
Independent Data  
Acquisition & Verification  
Installation for the CM42-EZs shall be  
by 2-screw blind-mount constant-ten-  
sion winged assembly and shall attach  
to ceiling thicknesses ranging from  
0.00 in to 1.50 in. The external wiring  
shall be hardwired using wire nuts  
accepting up to three 18-gauge wires.  
All data for SoundTube speakers is  
independently collected from and veri-  
com) using their proprietary MACH  
testing system. All data is collected and  
analysed 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.  
from 120 Hz - 22 kHz, -10 dB. The  
loudspeaker shall be available with  
selectable 25/70.7/100 Volt and 16  
Ohm/voice coil direct tap switch. The  
frequency dividing network shall  
have a crossover frequency of 5.0 kHz.  
Rated power capacity of the compo-  
nents and network shall be at least 20  
Watts continuous RMS power and con-  
form to EIA-426-B testing. Maximum  
continuous output at 1 meter shall be  
at least 100.5 dB.  
The CM42-EZs is factory preset to  
the 20 Watt setting in the 70.7 Volt  
mode with a tap switch located on the  
front baffle. The system shall be the  
SoundTube CM42-EZs for both low &  
high impedance applications.  
Architectural Specifications  
The backcan shall be constructed of  
galvanized steel with an ABS plastic  
baffle. The grille shall be constructed  
of painted steel. Shipped complete  
with UL-listed flex conduit clamp,  
color coded tile bridge (to match color-  
coded backcan), grille, wire nuts,  
cut-out template and paint shield,  
the integrated CM42-EZs in-ceiling  
speaker is engineered for high per-  
formance and rapid installation in  
plenum spaces. The CM42-EZs incor-  
porates a secondary attachment point  
The loudspeaker shall consist of one  
102 mm (4 in) low-frequency trans-  
ducer and one 19 mm ( 0.75 in) high-  
frequency transducer with a frequency  
dividing network installed in a sealed  
enclosure. The low-frequency voice  
coil diameter shall be 13 mm (0.50 in).  
The low-frequency transducer shall  
have a treated fiber cone material with  
cloth surround. The high-frequency  
transducer shall be constructed of silk  
material using a balanced-dome con-  
figuration.  
SoundTube Entertainment  
6430 North Business Park Loop  
Park City, Utah 84098  
Phone 435.647.9555  
Fax  
435.647.9666  
Toll Free 800.647.TUBE  
All SoundTube products come  
with a 5-year limited warranty.  
Vertical  
Horizontal  
Polar Plots  
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1,000 Hz  
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Technical data, EASE plots, SoundTubeSPEC software & product downloads available at www.soundtube.com  
 
In-Ceiling Speaker  
CM42-EZs  
Technical Information for System Engineers  
Mechanical Drawings  
Side  
Top  
95.3 mm  
(3.75 in)  
146.8 mm  
(5.78 in)  
165.1 mm  
(6.50 in)  
Included Accessories  
167.64 mm  
(6.60 in)  
250.55 mm  
(9.86 in)  
600.0 mm  
(23.62 in)  
Paint Mask  
Tile Bridge  
Optional Accesories  
m
0 m  
)
0
n
.
8
0 i  
0
0
.
5
4
2
(
Junction Box (AC-CM-EZ-JBOX)  
Pre-Construction Bracket (AC-CMEZ42-PCB)  
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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