SoundTube CM42-EZs Technical Information

CM42-EZs
Specifications: CM42-EZs
System Type
Impedance (nominal)
Sensitivity dB @ 2.83V/1M
Sensitivity dB @ 1W/1M
1
Frequency Response (- 3 dB)
Frequency Response (-10 dB)
Max. Program Power
3
Max. Continuous Power RMS
Max. Power SPL @ 1 M 5
Max. SPL @ 3 dB Distortion
Coverage Angle (-6 dB @ 2 kHz)
Coverage Angle (-6 dB @ 10 kHz)
Coverage Angle
Directivity Factor (Q)
Directivity Index (DI) dB
Tap Selector
Transducer - Low Frequency Driver
Transducer - High Frequency Driver
Low Frequency Voice Coil
Crossover Frequency
Network Type: Low Pass
Network Type: High Pass
Enclosure Alignment
Enclosure Material
Grille
Inputs
Colors
Backcan Diameter
Backcan Height
Visible Diameter
Visible Height
Mounting Hole Diameter
Min / Max Ceiling Thickness
Weight
Shipping Weight
Accessories
Included
Optional
Packaging
Regulatory - UL
Regulatory - CE
1w1m sensitivity determined using nominal
1
impedance
Frequency response measured in half or
2
full space as dictated by speaker mounting
configuration
Max program power is 3 dB above max
3
continuous power
Continuous power rating, EIA-426-B test
4
Max output based on max continuous power
5
Max useable SPL based on testing
6
by NWAA Labs
© 2008 SoundTube Entertainment. All rights reserved. PN-TS-CMEZ REV 06.05.08
In-Ceiling Speaker
Technical Information for System Engineers
4" Coax, in-ceiling, sealed (20 Watt transformer for
25/70.7/100 Volt or 16 Ohm direct)
16 Ohm
84.5 dB
87.5 dB
2 160 Hz - 20 kHz
2 125 Hz - 22 kHz
40 w
4 20 w
100.5 dB
6 20 w
170º
95º
100º (Avg. from 2 - 10 kHz)
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
102 mm (4 in) Treated fiber cone, cloth surround
19 mm (0.75 in) Silk tweeter
12.70 mm / 0.50 in
5.0 kHz
12dB per octave, 2nd order
6 dB per octave, 1st order
Sealed
Drawn steel backcan with ABS baffle
Painted Steel
18-Gauge hard wired leads
Black or white
5.78 in / 146.8 mm
3.75 in / 95.3 mm
7.50 in / 190.5 mm
0.33 in / 8.4 mm
6.50 in / 165.1 mm
0.00 in / 0.0 mm – 1.5 in / 38.1 mm
4.0 lb / 1.8 kg
5.0 lb / 2.3 kg
Tile bridge, UL listed flex conduit clamp, paint shield, hole
template, wire nuts
Pre-Construction Bracket (AC-CMEZ42-PCB) ; Junction Box
(AC-CM-EZ-JBOX)
1 per box
1480 & 2043 Approved
Approved
Transformer Taps
70.7 V Output 100 V Output
20 w 100.5 dB 20 w 100.5 dB
10 w 97.5 dB 10 w
5 w 94.5 dB 5 w
2.5 w 91.5 dB
Tile bridge included
25 V Output
2.5 w 91.5 dB
97.5 dB 1 w 88.5 dB
94.5 dB 0.63 w 85.5 dB
0.31 w 82.5 dB

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.
• Reduced amplification costs with
maximum efficiency including 87.5 dB
sensitivity and16 Ohm impedance.
• 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.
• Incorporates a painted steel grille for
lasting durability.
• UL 1480 & 2043, cUL, CE (EMC Direc-
tive 89/366/EEC, EN55020, EN55013)
approved.
• Adaptable to material thicknesses
ranging from 0.00 in (0.0 mm) to 1.50 in
(22.9 mm).
• Included accessories: Tile bridge, UL
listed 0.5" flex conduit clamp, paint
shield & 2 wire nuts.
• Optional accessories: Color-coded
(orange) pre-construction bracket
(AC-CM4-PCB), junction box (AC-CM-EZ-
JBOX).
• High-quality black or white painted
finish. Custom colors available.
Description
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.