
INSTALLATION MANUAL
PROFESSIONAL SERIES
IN-CEILING
PS-C43RT | PS-C63RT | PS-C83RT | PS-C83RWT

TABLE OF CONTENTS
PRODUCT DESCRIPTION 2
BOX AND CONTENTS 2
PRODUCT FEATURES 3
PRODUCT PREPARATION
Amplifier Selection 4
Wire Selection
70V/100V System 4
8 ohm System 4
Speaker Placement 4
Grille Painting 5
INSTALLATION
Standard Installation 6
Wiring 6
Drop Ceiling Installation 7
TECHNICAL SPECIFICATIONS
PS-C43RT 8
PS-C63RT 9
PS-C83RT 10
PS-C83RWT 11
CERTIFICATIONS & SAFETY AGENCY 12
TECHNICAL ASSISTANCE & SERVICE 12
WARRANTY 13
SONANCE | PROFESSIONAL SERIES IN-CEILING | INSTALLATION MANUAL 1

PRODUCT DESCRIPTION
BOX & CONTENTS
From Sonance, the company that created the architectural
audio category, comes a range of professional loudspeakers
that set a new benchmark in sound quality and aesthetics for
commercial environments.
Introducing Sonance Professional Series
Sonance Professional Series includes a range of In-Ceiling, Pendant
and Surface Mount speakers that deliver true full range fidelity,
extremely low distortion, wide dispersion and a smooth power
response. The range also shares consistent voicing, ensuring
seamless sonic integration when used together throughout a space.
The In-Ceiling speakers feature a one-piece bezel-less grille that
is magnetically secured and allows for a one-step painting process
to simplify installation and minimize visual distraction. The optional
Square Grille Adapter allows the speakers to match the aesthetic
of square downlights and HVAC grilles. Sealed metal enclosures,
integrated cable and conduit clamping, seismic attachment
and connecter cover allow them to be installed in commercial
environments where UL 1480 and UL 2043 are required by code.
Available in 4”, 6.5” and 8” 2-Way and 8” Woofer - all shipped
with white grille. An optional black grille and square adapter are
also available.
2-WAY SPEAKERS
(2) PS-C43RT, or PS-C63RT, or PS-C83RT
(2) Speaker Grille in White (Black Optional)
(4) Tile Support Rails
(2) C-Ring
(1) Cutout Template
WOOFER
(1) PS-C83RWT
(1) Speaker Grille in White (Black Optional)
(2) Tile Support Rails
(1) C-Ring
(1) Cutout Template
PS-C43RT
4” 2-Way
SONANCE | PROFESSIONAL SERIES IN-CEILING | INSTALLATION MANUAL 2
PS-C63RT
6.5” 2-Way
PS-C83RT
8” 2-Way
PS-C83RWT
8” Woofer

PRODUCT FEATURES
Transformer Tap and Bypass Selector
High Excursion Woofer
Tuning Port
Pivoting Chambered Tweeter (excluding PS-C83RWT)
One Piece Paintable Grille with Magnetic Retention
Integrated Back Can
Seismic Attachment
Cable and Conduit Clamp
Connector Cover with Slotted Opening
Euroblock Connector with Loop Through
Reversible Roto-Lock™ Clamps
SONANCE | PROFESSIONAL SERIES IN-CEILING | INSTALLATION MANUAL 3

AMPLIFIER SELECTION
SPEAKER PLACEMENT
When choosing an amplifier the maximum number of speakers and
the output level of each speaker must be known. The sum of the tap
settings should never exceed 80% of the amplifier’s rated output.
For example, if there are 5 speakers and the taps are set at 15 watts,
the load would be 75 watts (5 x 15 watts = 75 watts). To arrive at the
needed power for this number of speakers, simply divide the total
load by .8. In this case, 75 / .8 = 93.75 watts. Therefore, a standard
100 watt amp would safely drive this load. To calculate the amount
of usable power an amp offers, simply multiply the rated output by
.8, i.e., 100 watts x .8= 80 watts.
WIRE SELECTION
WIRE GAUGE – 70V/100V SYSTEM
The most common wire used on commercial 70 volt systems is
18 gauge, 2 conductor, stranded, and jacketed without a shield.
The wire starts at the amplifier location and is paralleled at each
speaker location.
Wire length using 18 gauge is appropriate up to 700 feet with a
100 watt load. If you double the load (sum of your tap settings), you
will reduce the footage by half, to 350 feet. Conversely, if you halve
the load, you may double the acceptable wire length, i.e., a 50 watt
load is safe over 1400 feet of 18 gauge. Stepping up to 16 gauge
wire extends the allowable run length by approximately 35%. For
example, a 100 watt load can go 700 feet on 18 gauge; the same
load may be placed on 1100 feet of 16 gauge.
WIRE GAUGE – 8 OHM SYSTEM
When using Sonance Professional Series loudspeakers in an 8 ohm
system the total wire resistance should be less than 10% of the
speaker impedance. The speakers are nominally 8 ohms impedance,
so 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 affect 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 (see figure 1) when deciding on
the appropriate wire gauge for your installation.
Sonance Professional Series speakers possess extremely smooth and
predictable off-axis frequency response. The chart below (see figure
2) 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.
SPEAKER
SPACING
COVERAGE
AREA
Speaker Spacing in Feet for a Distributed Audio System
Standing Listener Seated Listener
8-Foot Ceiling
10-Foot Ceiling
12-Foot Ceiling
14-Foot Ceiling
5.7’ (1.7m) Apart
9.7’ (3.0m) Apart
13.7’ (4.2m) Apart
17.7’ (5.4m) Apart
COVERAGE
AREA
9.5’ (2.9m) Apart
13.5’ (4.1m) Apart
17.5’ (5.3m) Apart
21.5’ (6.6m) Apart
FIGURE 2: SPEAKER SPACING
Wire Resistance in Ohms vs. Length of Cable Run
Distance in Feet
20 Gauge
18 Gauge
16 Gauge
14 Gauge
12 Gauge
50’ 100’ 150’ 200’ 250’ 300’
.86 1.73 2.59 3.45 4.32 5.18
.65 1.30 1.94 2.59 3.24 3.89
.43 .85 1.28 1.71 2.14 2.56
.27 .54 .81 1.08 1.35 1.62
.17 .34 .51 .68 .85 1.02
FIGURE 1: WIRE RESISTANCE
SONANCE | PROFESSIONAL SERIES IN-CEILING | INSTALLATION MANUAL4