Cambridge Soundworks Slave Subwoofer User Manual
Instructions for:
Powered Subwoofer
& Slave Subwoofer
by Henry Kloss
Contents
Safety Precautions ............................................................................ i, ii
Important—Please Read First .............................................................. 1
Unpacking The Subwoofer .................................................................. 2
Audio And AC Power Connections ....................................................... 2
Connecting A Slave Subwoofer ............................................................ 4
Placement ............................................................................................ 5
The Subwoofer Level Control ............................................................... 6
Selecting Low-Pass Frequency ............................................................. 7
Advantages Of The Slave Subwoofer ................................................... 8
The Final Touch ................................................................................... 8
Installing Low Cut Filters .................................................................... 9
Cleaning The Cabinets ......................................................................... 9
Replacing The Fuse ........................................................................... 10
Difficulty? .......................................................................................... 10
Limited Warranty .............................................................................. 11
IMPORTANT
The lightning flash with arrowhead, within
an equilateral triangle, is intended to alert
the user of the presence of uninsulated
“dangerous voltage” within a product’s enclosure that may be of sufficient magnitude
to constitute the risk of electric shock to
persons.
READ AND HEED IMPORTANT SAFETY WARNING
WARNING
SHOCK HAZARD
DO NOT OPEN
TO PREVENT THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE SUBWOOFER’S COVER. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
POUR EVITER TOUT RISQUE DE CHOC
ELECTRIQUE, NE PAS DEMONTER LE
COUVERCLE DU HAUT PARLEUR.
AUCUN ENTRETIEN DES PIECES
INTERIEURES N’EST REQUIS.TOUT
SERVICE D’ENTRETIEN NE DOIT ETRE
EFFECTUE QUE PAR DU PERSONNEL
D’ENTRETIEN QUALIFIE.
AVIS
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
ON BACK OF SUBWOOFER ENCLOSURE
The exclamation point within an equilateral
triangle is intended to alert the user of the
presence of important operating and maintenance (servicing) instructions in the literature accompanying this product.
CAUTION: TO PREVENT ELECTRIC
SHOCK, MATCH WIDE BLADE OF PLUG
TO WIDE SLOT, INSERT FULLY.
ATTENTION: POUR EVITER LES CHOCS
ELECTRIQUES, INTRODUIRE LA LAME LA PLUS
LARGE DE LA FICHE DANS LA BORNE
CORRESPONDANTE DE LA PRISE ET POUSSER
JUSQU’AU FOND.
TO PREVENT FIRE OR
WARNING:
SHOCK HAZARD, DO NOT
EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
The serial number for the subwoofer is located
on the subwoofer’s control panel. Please write
this number down and keep it in a secure area.
This is for your security.
IMPORTANT NOTICE
i
IMPORTANT SAFETY INSTRUCTIONS
READ INSTRUCTIONS - All safety and op-
erating instructions should be read before
Powered Subwoofer
the
Subwoofer
RETAIN INSTRUCTIONS - The safety and
operating instructions should be retained
for future reference.
HEED WARNINGS - All warnings on the
subwoofer and in the operating instructions should be adhered to.
FOLLOW INSTRUCTIONS - All operating
and use instructions should be followed.
CLEANING - Unplug the subwoofer from the
wall outlet or other power source before
cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a damp cloth for
cleaning.
ATTACHMENTS - Do not use attachments
not recommended by Cambridge
SoundWorks as they may cause hazards.
WATER AND MOISTURE - Do not use the
subwoofer near water—for example, near
a bath tub, wash bowl, kitchen sink, or
laundry tub; in a wet basement; or near a
swimming pool; and the like.
ACCESSORIES - Do not place the
Subwoofer
unstable cart, stand, tripod, bracket, or
table. The subwoofer may fall, causing
serious injury to a child or adult, and
serious damage to the product. Use only
with a cart, stand, tripod, bracket, or table
recommended by Cambridge SoundWorks, or sold with the product. The subwoofer should follow the manufacturer’s
instructions.
is operated.
or
Slave Subwoofer
or
Slave
Powered
on an
VENTILATION - Slots and openings in the
cabinet are provided for ventilation and to
ensure reliable operation of the subwoofer
and to prevent it from overheating, and
these openings must not be blocked or
covered. The openings should never be
blocked by placing the product on a bed,
sofa, rug, or other similar surface. The
subwoofer should not be placed in a builtin installation such as a bookcase or rack
unless proper ventilation is.
HEAT - The subwoofer should be situated
away from heat sources such as radiators, heat registers, stoves, and other
products (including amplifiers) that produce heat.
POWER SOURCES - The subwoofer should
be operated only from the type of power
source indicated on the marking label. If
you are not sure of the type of power
supply to your home, consult your product
dealer or local power company.
POLARIZATION - The subwoofer may be
equipped with a polarized alternating-current line plug (a plug having one blade
wider than the other). This plug will fit into
the power outlet only one way. This is a
safety feature. If you are unable to insert
the plug fully into the outlet, try reversing
the plug. If the plug should still fail to fit,
contact your electrician to replace your
obsolete outlet. Do not defeat the safety
purpose of the polarized plug.
POWER-CORD PROTECTION - AC power
cords should be routed so that they are
not likely to be walked on or pinched by
items placed upon or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point
where they exit from the subwoofer.
LIGHTNING - For added protection for the
Powered Subwoofer
Subwoofer
storm, or when it is left unattended and
unused for long periods of time, unplug it
from the wall outlet. This will prevent damage to the subwoofer due to lightning and
power-line surges.
OVERLOADING - Do not overload wall out-
lets, extension cords, or integral convenience receptacles as this can result in a
risk of fire or electric shock.
OBJECT AND LIQUID ENTRY - Never push
objects of any kind into the subwoofer
through openings as they may touch dangerous voltage points or short out parts
that could result in a fire or electric shock.
Never spill liquid of any kind on the subwoofer.
SERVICING - Do not attempt to service the
subwoofer yourself as opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service personnel.
system during a lightning
or the
Slave
DAMAGE REQUIRING SERVICE - Unplug
the subwoofer from the wall outlet or other
power source and refer servicing to qualified service personnel under the following
conditions:
a) When the power-supply cord or plug is
damaged.
b) If liquid has been spilled, or objects
have fallen into the subwoofer.
c) If the subwoofer has been exposed to
rain or water.
d) If the subwoofer does not operate normally by following the operating instructions; or exhibits a distinct change in performance.
e) If the product has been dropped or
damaged in any way.
REPLACEMENT PARTS - When replace-
ment parts are required, be sure the service technician has used replacement
parts specified by Cambridge SoundWorks
or have the same characteristics as the
original part. Unauthorized substitutions
may result in fire, electric shock, or other
hazards.
SAFETY CHECK - Upon completion of any
service or repairs to the
Subwoofer
service technician to perform safety checks
to determine that the
or
condition.
or
Slave Subwoofer
Slave Subwoofer
Powered Subwoofer
is in proper operating
Powered
, ask the
ii
Important – Please Read First
ass drums, organs, and
electronic synthesizers are
among the very few instru-
B
ments that produce extremely
low frequency sounds. As a result,
comparatively few home loudspeakers are designed to reproduce bass
below about 50 Hz.
Today, however, home loudspeakers are called upon to reproduce
more than music: in home theater
systems, they are called upon to
reproduce movie soundtracks. And
modern movie soundtracks contain
a lot of energy at very low frequencies—on sound effects. To do full
justice to these effects, as well as to
the musical low frequencies missed
by most speakers, the Cambridge
SoundWorks powered subwoofer
systems reproduce, at high power,
the lowest bass sounds the human
ear can detect.
You should keep in mind when
installing your system and investigating its capabilities that you will
be dealing with a relatively unfamiliar range of sounds. These are
sounds more felt than heard, and
are encountered more often in the
well-equipped movie theater than
in the concert hall.
Also keep in mind that a
Cambridge SoundWorks Audio/
Video Consultant is only a toll-free
call away should you need advice
or assistance.
Cambridge SoundWorks
1-877-YES-HIFI
(1-877-937-4434)
24 hours a day,
every day
In Canada: 1-800-987-9104
Outside US or Canada:
Tel: 617-332-5936
Fax: 617-527-3194
www.cambridgesoundworks.com
E-mail:
info@cambridgesoundworks.com
1
Unpacking
1. Upon unpacking your Powered
Subwoofer (or Slave Subwoofer),
please examine carefully for any
signs of shipping damage. If
there is any damage, do not
install or use the subwoofer.
Consult the store where you
purchased the subwoofer for
assistance. If purchased through
our mail order catalog service,
call Cambridge SoundWorks
at 1-877-937-4434.
2. If you purchased a Cambridge
SoundWorks Powered
Subwoofer, its accessory pack
should contain:
• One spare T3.15A, 250V fuse
• Four square rubber feet
3. If you purchased a Cambridge
SoundWorks Slave Subwoofer,
its accessory pack should
contain:
• One spare T3.15A, 250V fuse
• 25 feet of 16 gauge
speaker wire
• One wire stripper
• Four wire nuts
• Four square rubber feet
4. We suggest that you keep the
shipping carton and packing
materials in case you later
move, or have to ship your
subwoofer.
Audio And AC Power Connections
Note: Make all connections with the
Powered Subwoofer switched off.
The Powered Subwoofer can be
connected to the main amplifier’s
speaker outputs, from stereo
preamp outputs or from a mono
subwoofer output.
Using the speaker outputs of
your main amplifier to drive the
Powered Subwoofer is usually the
best way to connect the Powered
Subwoofer, even if you have a
separate preamp or subwoofer
output (like the subwoofer output
on a Dolby Digital
If you have large Left and Right
speakers and a Dolby Digital (AC-3)
system, please be sure to read the
note at the end of this section.
Connection Method One:
Connect directly to an amplifier or
receiver’s speaker output terminals
using conventional speaker wire
(Figure 1 on page 3). You can use
lightweight speaker wire (20-22
gauge) because this is a high impedance connection. The Powered
Subwoofer uses virtually none of
the amplifier or receiver’s output
power. Be sure to connect these
new speaker wires to the same
®
(AC-3) system).
speaker outputs used by your main
speakers. Do not use any additional
speaker output terminals your
amplifier or receiver may have.
Alternatively, you may connect
the speaker wires between the
Powered Subwoofer and the input
terminals of your main speakers
instead of the amplifier or receiver’s
speaker output terminals.
Be sure the speaker wire connects
the positive (+) terminals of the
subwoofer to the positive (+)
terminals of the amplifier or receiver (and similarly connects the
negative (–) terminals together). All
two-conductor speaker cable is
coded along one conductor by
lettering, a stripe or a raised bead
-or- the appearance of the two
conductors differs, usually one
copper and one silver. This allows
you to easily connect the proper
conductor to each terminal.
Connection Method Two: Connect
from a stereo preamp output to the
Powered Subwoofer’s Line Level
inputs. A suitable length of conventional stereo phono cable with RCA
plugs at each end is all you need if
your preamp has an unused stereo
preamp output.
2
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