When using the CR series speakers as a rear channel speaker, the
speakers should be located from 2 to 6 feet behind the main listening
position. The speakers should be separated approximately 6 to 10 feet
apart.
PN. 33-2278
Rev.12.11
I N S T A L L A T I O N I N S T R U C T I O N S
S O N A N C E C R S E R I E S
I N - C E I L I N G S P E A K E R S
INTRODUCTION
Thank you for purchasing Sonance CR series in-ceiling speakers. When
properly installed, this product will provide you with years of
entertainment pleasure.
To obtain the full potential of your new speakers, please read all
instructions before starting the installation. If you do not have the
necessary skills to install the speakers yourself, contact your
authorized Sonance dealer for installation options.
PARTS LIST CR101, CR201 and CR801
Each CR series package includes the following items:
(2) Sonance CR speakers
(2) Paintable grilles
(2) Plastic paint plugs to protect speakers during painting
(1) Mounting cutout template ( in packaging )
1
DISTRIBUTED AUDIO PLACEMENT
HOME THEATER PLACEMENT
The Sonance CR series speakers possess extremely smooth and
predictable off-axis frequency response. The chart below shows how
far apart the speakers can be placed in a distributed audio system. The
calculations are based on +/- 45 degrees of coverage from the
speaker, and listener ear heights of 62" for standing and 40" for
seated.
Distributed Audio Placement
2 - CHANNEL AUDIO PLACEMENT
In a standard two channel audio system, the CR series speakers
should be separated approximately 6 to 10 feet apart. If possible, the
left and right speakers should be located the same distance from the
listening position.
Speaker spacing in feet for a distributed audio system
Standing Listener Seated Listener
10 foot ceiling
12 foot ceiling
14 foot ceiling
8 foot ceiling 9.5'
13.5'
17.5'
21.5'
5.7'
9.7'
13.7'
17.7'
6 to 10 feet
TV
PARTS LIST CR101 SST
Each CR101SST speaker includes the following items:
(1) Sonance CR speaker
(1) Paintable grille
(1) Plastic paint plug to protect speaker during painting
(1) Mounting cutout template ( in packaging )
FlexBracket - part number 92337
Plastic template to reserve hole in new construction.
Staple Template - part number 90-1049
Thin plastic template for new construction to reserve hole in new
construction.
Coverplate - part number 92335
Designed to cover hole made by FlexBracket or Staple Template until
the speaker is installed.
Acoustic Enclosure - part number 91688
A 3/4" medium density fiberboard enclosure designed specifically for
the CR and Symphony series speakers.
Fire Rate Back Can - part number 92808
A metal can designed for the CR speakers that
meets the following fire testing criteria; ASTM E119, CAN/ULC S101,
NFPA 251, UBC 7-1, UL 263.
OPTIONAL ACCESSORIES
FOR CR101, CR201 and CR101SST
OPTIONAL ACCESSORIES
FOR CR801
FlexBracket - part number 92247
Plastic template to reserve hole in new construction.
Coverplate - part number 92245
Designed to cover hole made by FlexBracket until the speaker is
installed.
Acoustical Enclosure - part number 91900
A 1/2" medium density fiberboard enclosure designed specifically for
the Virtuoso DR and CR801 speakers.
2
WIRE GAUGE AND QUALITY
PREPARING THE INSTALLATION LOCATION
Sonafill
Insulating the ceiling cavity
The total wire resistance should be less than 10% of the speaker
impedance. If using an 8 ohm speaker, your total wire resistance
should be no more than 0.8 ohms.
In simple terms, the extra resistance from the wire will have a very
negative effect on the sound quality of the speaker. The sound can be
less dynamic, definition of bass frequencies can be reduced, and in
extreme cases, the high frequencies can be attenuated. Amplifier
power is also wasted in the wire, reducing the maximum output level
of the system.
Please refer to the following chart when deciding on the appropriate
wire gauge for your installation.
Wire resistance in Ohms vs. length of cable run
Distance in Feet
50' 100' 150' 200' 250' 300'
.86
.65
.43
.27
.17
.11
18 gauge
16 gauge
14 gauge
12 gauge
10 gauge
20 gauge
1.73
1.30
.85
.54
.34
.22
2.59
1.94
1.28
.81
.51
.33
3.45
2.59
1.71
1.08
.68
.44
4.32
3.24
2.14
1.35
.85
.56
5.18
3.89
2.56
1.62
1.02
.67
Speaker performance can be enhanced by insulating the cavity with
fiberglass insulation.
When installing speakers in a ceiling, it is best to lay a sheet of
unfaced fiberglass insulation over the back of the speaker.
To further improve the sound quality, install insulation in the bays
adjacent to the speaker location. This will reduce noise produced by
the unsupported drywall.
Sonafill is a retrofitable acoustical treatment for loudspeakers that
virtually eliminates the noise produced by resonating drywall and
dramatically improves mid-bass sound quality. Sonafill also reduces
room-to-room noise especially in multi-channel installations where
many speakers are installed.
The Sonafill system consists of two pillows and four tiles. Installation is
accomplished by first adhering the tiles to the inside of the cavity, then
stuffing the two pillows in place behind the tiles.
The Sonafill System
All Sonance speakers are designed to be relatively insensitive to
changes in enclosure volume. To achieve the ultimate performance
from the CR series speakers, a section of the ceiling bay can be
sectioned off to form a back box. Building this enclosure will create a
dramatic improvement in the quality of bass response and power
handling.
Back box volume requirements:
CR101 1.00 cubic feet (28.3 liters)
CR201 1.15 cubic feet (32.55 liters)
CR801 2.00 cubic feet (56.6 liters)
CR101 SST 1.00 cubic feet (28.3 liters)
Acoustic Pillow
Acoustic Pillow
Damping Tiles
Damping Tiles
Retrofit
New Construction
FlexBracket
The CR series speakers feature an integral Roto-Lock mounting
system for quick mounting into ceilings. The FlexBracket is only
necessary in new construction installations when reserving a location
for the speaker is desired.
The FlexBracket will serve as a guide for the drywaller when cutting
holes for in-ceiling speakers. The FlexBracket is nailed or screwed to
the joists so that the hole is in the desired location once the drywall is
installed.
With the Roto-Lock system, the speaker can be installed directly into
existing ceilings. Once the hole is cut and the cable is run, the
speakers can be installed in a matter of seconds.
Once you have determined the area you would like to locate your
speakers, you will need to do an obstruction survey. Before you cut
the hole for the speaker, be certain no joist, conduit, pipe, heating
duct or air return will interfere with the speaker.
A cut-out template is provided in the packaging of the speaker.
Position the template where the speaker is to be located and pencil an
outline on the ceiling. If you are unsure about obstructions, drill a
small hole in the center of the circle and insert a coat hanger into the
hole to feel for possible obstructions. If no obstructions are found,
proceed with cutting the hole using a drywall saw and run the speaker
wires.
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