Owner's Manual
Key Features
• One 8.0 inch (203 mm) polypropylene
woofer with butyl rubber surround and one
1.0 inch (25 mm) silk dome tweeter.
• BroadBeam Ring™ technology for mid-
range clarity and ultra wide off axis perfor-
mance.
• Easy-access six-position tap switch for
25/70.7/100-volt and transformer bypass
settings allows for easy ordering, stocking
and installation.
• Tuned port on bafe for added musicality
and bass response down to 45 Hz (-10 dB).
• Reduced amplication costs and maximum
efciency of 84.5 d
B sensitivity, 16 ohm
impedance.
• Incorporates a painted steel grille for lasting
durability.
• Adaptable to material thicknesses ranging
from 0.035 inch (0.9 mm) to 1.6 inch (40.6
mm).
• UL 1480 and 2043 approved.
• High-quality black or white painted nish.
Custom colors available.
• Included accessories: Tile bridge, UL listed
0.5-inch conduit clamp, paint shield.
• Optional accessories: Color-coded (green)
pre-construction bracket (AC-CM6-8EZ-
PCB).
Description
The CM82-BGM is an 8-inch coaxial
two-way blind-mount in-ceiling speaker
which delivers true high-efciency and per-
formance across the operating bandwidth.
By incorporating an 8-inch polypropylene
driver with a butyl rubber surround and
a 1-inch silk dome tweeter in a sealed
drawn steel backcan with a tuned port,
this speaker delivers maximum frequency
response (45 Hz – 22 kHz, - 10 dB) in an
integrated enclosure design.
Mounting hardware i
s included and fea-
tures a constant-tension xed-wing mount-
ing 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, stock-
ing and installation, this series includes a
color-coded (green) tile bridge and optional
pre-construction bracket, as well as a six-
position tap switch for 25-, 70.7- and 100-
volt applications with a transformer bypass
position.
© 2009 SoundTube Entertainment. All rights reserved. PN-TS-CMEZ REV 02.05.13
Tile bridge included
CM82-BGM
Specications:
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 2-10 kHz)
Directivity Factor (Q)
Directivity Index (DI)
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 Material
Grille
Inputs
Colors
Backcan Diameter
Backcan Height
Visible Diameter
Visible Height
Mounting Hole Diameter
Min – Max Ceiling Thickness
Weight
Shipping Weight
Packaging
Included accessories
Optional accessories
Regulatory - UL
Regulatory - CE
RoHS
8-inch coaxial, in-ceiling, ported (64-watt transformer for
25/70.7/100-volt or transformer bypass)
16 ohm
81.4 dB
84.5 dB
56 Hz - 20 kHz
45 Hz - 22 kHz
128 W
64 W
102.5 dB
105º
40º
95º
7.6 (averaged 100 Hz - 10 kHz) ; 8.2 (2 kHz)
6.9 dB (averaged 100 Hz - 10 kHz) ; 6.6 dB (2 kHz)
Six-position rotary switch with transformer bypass position
203 mm (8.0 in.) Polypropylene cone, butyl rubber surround
25 mm (1.0 in.) Silk dome tweeter w/ BroadBeam Ring™
25.4 mm (1.0 in.)
3.0 kHz
12 dB per octave, 2nd order
12 dB per octave, 2nd order
Drawn steel backcan with ABS bafe
Painted steel
Ceramic terminal connector
Black or white
245.6 mm (9.67 in.)
203.2 mm (8.0 in.)
298.5 mm (11.75 i
n.)
8.6 mm (0.34 in.)
266.7 mm (10.50 in.)
0.9 mm (0.035 in.) – 40.6 mm (1.6 in.)
4.1 kg (9.0 lbs.)
4.5 kg (9.9 lbs.)
One per box
Tile bridge, UL-listed ex conduit clamp, paint shield
Pre-construction bracket (AC-CMEZ-6/8-PCB)
UL 1480 and 2043
Approved
Approved
Transformer Taps
Impedance listed per IEC 60268-5
1 W 1 m sensitivity determined using nominal
impedance
Frequency response measured in half or
full space as dictated by speaker mounting
conguration
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
64 W 102.5 dB
32 W 99.5 dB
16 W 96.5 dB
8 W 93.5 dB
4 W 90.5 dB
64 W 102.5 dB
32 W 99.5 dB
16 W 96.5 dB
8 W 93.5 dB
8 W 93.5 dB
4 W 90.5 dB
2 W 87.5 dB
1 W 84.5 dB
In-Ceiling Speaker
Technical Information for System Engineers
CM82-BGM