Key Features
• Patented BroadBeam
®
waveguide tech-
nology delivers a consistent dispersion
pattern for maximum intelligibility and
edge-to-edge coverage (up to 10 kHz, inde-
pendently verified).
• One 133 mm (5.25 in.) polypropylene
woofer and one 25 mm (1.0 in.) convex
aluminum tweeter with FerroFluid
™
cool-
ing mounted to a proprietary cast-alumi-
num M5
™
baffle and heat sink.
• Rapid-installation, blind-mount, fixed-
wing mounting mechanism with con-
stant-tension design affixing to ceiling
thicknesses ranging from 6.4 mm (0.25 in.)
to 42.9 mm (1.69 in.).
• Separate tool-free magnetic grille and
bezel assembly with integrated safety/
seismic cable for ease of install and in-
field painting.
• Steel grille with protective powder-coated
finish for lasting durability.
• Easy-access six-position selectable tap
switch for 25-, 70.7- and 100-volt applica-
tions with voice coil direct position sim-
plifies ordering and inventory tracking.
• Average sensitivity of 86.5 dB offers high-
output capabilities and reduced amplifica-
tion costs.
• UL 1480 and 2043 approved.
• Included accessories: Tile bridge, conduit
plate, Euroblock connector and paint
mask.
• Optional accessories: Color-coded (blue)
pre-construction bracket, junction box.
• High-quality black or white paint
finish. Custom paint colors optional.
Description
The CM500i is a 5.25-inch, two-way,
blind-mount in-ceiling speaker that deliv-
ers effective low-end response (55 Hz) and
optimal off-axis performance (up to 10 kHz,
independently verified). SoundTube’s propri-
etary BroadBeam
®
waveguide tweeter system
delivers consistent high-performance audio
across the operating bandwidth. The CM500i
speaker design incorporates a low-profile
grille, proprietary M5
™
motor-board, and a
six-position tap switch with voice coil direct
position. Mounting hardware is included and
features a fast and secure constant-tension,
fixed-wing mounting system.
CM500i
In-Ceiling Speaker
Technical Information for System Engineers
© 2009 SoundTube Entertainment. All rights reserved. CM500i REV 08.03.09
Specifications: CM500i
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
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
Motor-board
Grille
Inputs
Colors
Backcan Diameter
Backcan Height
Visible Diameter
Visible Height
Min / Max Ceiling Thickness
Weight
Shipping Weight
Packaging
Included Accessories
Optional Accessories
Regulatory - UL
Regulatory - CE
5.25-inch coax, in-ceiling, ported (33-watt transformer for
25/70.7/100-volt or voice coil direct)
8 ohm
86.5 dB
86.5 dB
75 Hz - 22 kHz
55 Hz - 22 kHz
150 W
75 W
105.5 dB
95°
125°
105°
4.8 (averaged 100 Hz - 10 kHz); 9.5 (2 kHz)
6.1 dB (averaged 100 Hz - 10 kHz); 9.8 dB (2 kHz)
Six-position tap switch with voice coil direct
133 mm (5.25 in.) Polypropylene cone, butyl rubber surround
25 mm (1 in.) Convex aluminum tweeter with waveguide
25.4 mm (1.0 in.)
3.0 kHz
12 dB per octave, 2nd order
12 dB per octave, 2nd order
Ported
Drawn aluminum backcan with ABS baffle
Cast aluminum
Steel with powder-coat finish
Four-pin, 5 mm Euroblock for individual or daisy chain connec-
tion
Black or white
219.2 mm (8.63 in.)
196.9 mm (7.75 in.)
272.0 mm (10.71 in.)
24.4 mm (0.96 in.)
6.4 mm (0.25 in.) – 42.9 mm (1.69 in.)
3.4 kg (7.5 lbs.)
10.7 kg (23.5 lbs.)
Two per box
Tile bridge, conduit plate, Euroblock connector and
installation aid
Pre-construction bracket (AC-CM5-PCB), junction box
(AC-CMi-JBOX)
UL 1480 and 2043 Approved
Approved
Transformer Taps
Impedance listed per IEC 60268-5 with
a minimum less than 80% the nominal
impedance
1 W 1 m sensitivity determined using nomi-
nal impedance
Frequency response measured in half or
full space as dictated by speaker mounting
configuration
Max program power is 3 dB above max
continuous power
Continuous power rating, EIA-426-B test
Max output based on max continuous power
1
2
3
4
5
6
70.7 V Output 100 V Output 25 V Output
33 W 101.5 dB
17 W 99.0 dB
9 W 96.0 dB
6 W 94.5 dB
3 W 91.5 dB
33 W 101.5 dB
17 W 99.0 dB
9 W 96.0 dB
6 W 94.5 dB
5 W 93.5 dB
2.5 W 90.5 dB
1.3 W 87.5 dB
0.63 W 84.5 dB
Tile bridge included
