70.7 V
Output
100 V
Output
25 V
Output
64 W
111.5 dB
64 W
111.5 dB
4 W
99.5 dB
32 W
108.5 dB
32 W
108.5 dB
2 W
96.5 dB
16 W
105.5 dB
16 W
105.5 dB
1 W
93.5 dB
8 W
102.5 dB
8 W
102.5 dB
.5 W
90.5 dB
4 W
99.5 dB
8” Coax, in-ceiling, ported (64 Watt transformer for
25/70.7/100 Volt or voice coil/8 Ohm direct)
85 Hz - 22 kHz
60 Hz - 22 kHz
250 Watts
125 Watts
114.5 dB
93.5 dB
8 Ohm (nominal value)
100º
100º
5.00 (Averaged 100 Hz - 10 kHz); 8.05 @ 2 kHz
6.08 dB (Averaged 100 Hz - 10 kHz); 9.06 dB @ 2 kHz
6-Position rotary switch with voice coil/8 Ohm direct
1 x 203 mm (8.0 in) Polypropylene cone, butyl rubber surround
25 mm (1.0 in) Convex aluminum tweeter with waveguide
30.4 mm (1.2 in)
3 kHz
12 dB per octave, 2nd order
12 dB per octave, 2nd order
Drawn aluminum backcan with ABS baffle
Cast aluminum
Iridite-plated steel with powder-coat finish
4 Pin, 5 mm Euroblock for individual or daisy chain connection
Black or white
296.7 mm / 11.68 in
201.7 mm / 7.94 in
27.5 mm / 1.08 in
375.0 mm / 14.76 in
5.7 kG / 12.5 lbs
17.7 kG / 39 lbs (2 per box, includes tile bridges)
Tile bridge, Euroblock connector & installation aid
Pre-Construction Bracket (AC-CM8-PCB), Junction Box
(AC-CM-JBOX) & architectural Square Grille (AC-CM8-SG)
2 Per box
© 2003 SoundTube Entertainment, Inc. All rights reserved. REV 07.20.04
Key Features
• BroadBeam11
®
waveguide technology
delivers a consistent BroadBeam
™
dis-
persion pattern for maximum coverage
area per speaker (up to 10 kHz, EASE
™
documented).
• One 203 mm (8.0 in) polypropylene
woofer and one 25 mm (1.0 in) convex
aluminum tweeter with FerroFluid™
cooling mounted to a proprietary cast-
aluminum M8
™
baffle and heat sink.
• Rapid-installation blind-mount, fixed-
wing mounting mechanism with con-
stant-tension design affixing to ceiling
thickness tolerances ranging from 6.4
mm (0.25 in) to 42.9 mm (1.69 in).
• Separate tool-free magnetic grille &
bezel assembly for ease of install &
in-field painting.
• Iridite-plated steel grille with protective
powder-coated finish for lasting durability.
• Easy access 6-position selectable tap
switch for 25, 70.7 and 100 Volt applica-
tions with voice coil/8 Ohm direct sim-
plifies ordering & inventory tracking.
• 93.5 dB average sensitivity offers high-
output capabilities & reduced amplifi-
cation costs.
• UL 1480 & 2043, CE (EMC Directive
89/366/EEC, EN55020, EN55013), Mil-
spec 810 & IEC529 approval pending.
• Included accessories: Tile bridge,
Euroblock connector & paint mask.
• Optional accessories: Pre-Construction
Bracket, Junction Box and Square Grille
for architectural specifications.
• High-quality black or white paint
finish. Custom paint colors optional.
Description
The CM800i is an 8” 2-way blind-mount
in-ceiling speaker design that delivers
extended low-end response (60 Hz) and
optimal off-axis performance (up to 10
kHz, EASE
™
documented). SoundTube’s
proprietary BroadBeam11
®
waveguide
tweeter system delivers consistent high-
performance audio across the operating
bandwidth. The CM800i speaker design
incorporates a low-profile grille, propri-
etary M8
™
motor-board and 6-position
tap switch with voice coil/8 Ohm direct.
Mounting hardware is included & features
a fast & secure constant tension fixed-wing
mounting system.
CM800i
In-Ceiling Speaker
Technical Information for System Engineers
Tile bridge included
Specifications: CM800i
System Type
Frequency Response (-3 dB)
1
Low Frequnecy (-10 dB)
1
Max. Program Power
Max. Continuous Power RMS
2
Max. SPL dB @ 1 M RMS
Sensitivity dB @ 1W/1M
3
Impedance (nominal)
Coverage Angle (-6 dB @ 2 kHz)
Coverage Angle (-6 dB @ 10 kHz)
Directivity Factor (Q)
Directivity Index (DI)
Tap Selector
Transformer Taps
Transducer
Low Frequency Driver
High Frequency Driver
Low Frequency Voice Coil
Crossover Frequency
Network Type
Low Pass
High Pass
Enclosure Material
Motor Board
Grille
Inputs
Colors
Backcan Diameter
Backcan Height
Visible Diameter
Visible Height
Weight
Shipping Weight
Accessories
Included
Optional
Packaging
1
Frequency response is measured in half space and includes a low-frequency peak > + 3 dB.
2
Continuous power rating, EIA-426-B test.
3
2.83 Volts at a distance of 1 meter.
SoundTube continually develops new product innovations and improvements. Updates to existing
products without prior notice are an example of SoundTube’s drive for constant improvement.
