Sonance A800D User Guide

2

OPTIONAL ACCESSORIES

Virtuoso

D

Metal Grille (part# 92290): Metal replacement for included grilles.

Virtuoso

D

Cloth Grille (part# 92285): Cloth-covered replacement for included

grilles.

Virtuoso

D

FlexBracket (part# 92247): Plastic template to reserve a mounting

hole for the woofer in new construction. Designed to be used with the
RotoLock® mounting system.

Virtuoso

D

Coverplate (part# 92245): Covers the hole made by the FlexBracket

during construction until the speaker is installed.

Virtuoso

D

Acoustic Enclosure (part# 91900): ½” MDF enclosure that

provides ideal acoustic performance and maximum reduction of sound
transmission into adjacent spaces. Designed for use only in new construction.

Virtuoso

DR

Fire-Rated Back Can (part# 91908): Meets ASTM E 119 and UL2043

criteria for commercial installations.

Sonafill

®

In-Wall System (part# 91928): Retrofittable acoustical 

treatment for in-ceiling speakers consisting of two pillows and four tiles that 
virtually eliminates noise produced by resonating drywall. Dramatically
improves midbass sound quality and reduces sound transmission into 
adjacent rooms.

WOOFER PLACEMENT

Home Theater Placement

For highest output and best overall performance the Virtuoso A800DR
woofer should be placed in the front corner of the room. Place the woofer as
close as possible to the left, center and right speakers to assure seamless inte-
gration of the sound from the main speakers and the woofer.

For optimum results contact your Authorized Sonance Dealer for advice.

Use Illustration 1 as a guide.

2-Channel Placement

In a 2-channel system the A800DR woofer should be located on a corner of
the room, as close as possible to the left or right speaker. Corner placement
provides the highest output and best overall performance.

Use Illustration 2 as a guide.

WIRE GAUGE

Extra resistance in the speaker wire can make speakers sound less dynamic
and reduce definition of the bass frequencies. In extreme cases, it can even
attenuate high frequencies. Also, amplifier power is wasted in wire with extra
resistance, reducing your system’s maximum output level.

To prevent degrading sound quality, the total wire resistance should be less
than 10% of the speaker’s impedance. This means that for an 8-ohm speaker,
the total resistance of the wire should be less than 0.8 ohms.

Refer to the following table when selecting the proper wire gauge for your system:

PREPARING THE INSTALLATION LOCATION

All Sonance speakers are designed to be relatively insensitive to variations in
enclosure volume. To achieve the ultimate performance from your speakers,
a section of the ceiling joist bay can be sectioned-off to form a back box.
Building such an enclosure will create a dramatic improvement in your 
woofer’s bass performance and power handling.

Ideal back box volume requirements: 1.5 cu. ft. (45.5 liters)

Insulating the Ceiling Cavity

You can reduce sound transmission to adjacent rooms and further improve
woofer performance by inserting a sheet of unfaced fiberglass insulation over
the back of the woofer.

To reduce noise produced by unsupported drywall, install fiberglass 
insulation in the ceiling bays adjacent to the woofer location.

Wire resistance in Ohms vs. length of cable run

Distance in Feet

50' 100' 150' 200' 250' 300'

1.04

.65

.41

.26

.16

.10

18 gauge

16 gauge

14 gauge

12 gauge

10 gauge

20 gauge

2.07

1.30

.82

.52

.32

.20

3.11

1.96

1.22

.77

.49

.31

4.14

2.61

1.63

1.03

.65

.41

5.18

3.26

2.04

1.29

.81

.51

6.22

3.91

2.45

1.55

.97

.61

I N S T R U C T I O N   M A N U A L

S O N A N C E   V I R T U O S O

®

D R - S E R I E S

A 8 0 0 D R   8 ”   I N - C E I L I N G   W O O F E R

TV

Virtuoso  Woofer

Virtuoso Woofer