Infinity SW-12 User Manual
Powered Subwoofer
SW-12
Owner’s Guide
(120V)
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of electric shock,
do not remove cover (or back).
No user-serviceable parts inside.
Refer servicing to qualified service personnel.
CAUTION: To prevent electric shock,
do not use this (polarized) plug with
an extension cord, receptacle or other outlet
unless the blades can be fully inserted to
prevent blade exposure.
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to constitute
a risk of electric shock to persons.
Antenna Lead-In Wire
Ground Clamp
Antenna Discharge Unit (NEC Section 810-20)
Grounding Conductors (NEC Section 810-21)
Electric Service Equipment
Ground Clamps
Power Service Grounding Electrode System
(NEC Art. 250, Part H)
I
MPORTANTSAFETYPRECAUTIONS
Read First!
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as
radiators, heat registers,stoves or other apparatus
(including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the
polarized or grounding-type plug.A polarized plug
has two blades with one wider than the other. A
grounding-type plug has two blades and a third
grounding prong.The wide blade or the third
prong are provided for your safety.If the provided
plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on
or pinched, particularly at plugs,convenience
receptacles and the point where they exit from the
apparatus.
11. Only use attachments/accessories specified by
the manufacturer.
12. Use only with the cart, stand,
tripod, bracket or table specified
by the manufacturer or sold with
the apparatus.When a cart is
ii
SW-12
used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms
or when unused for long periods of time.
14. Refer all servicing to qualified service
personnel. Servicing is required when the
apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain
or moisture, does not operate normally, or has
been dropped.
15. Do not use attachments not recommended by
the product manufacturer, as they may cause
hazards.
16. This product 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. For products intended to
operate from battery power, or other sources,
refer to the operating instructions.
17. If an outside antenna or cable system is
connected to the product, be sure the antenna or
cable system is grounded so as to provide some
protection against voltage surges and built-up
static charges.Article 810 of the National
Electrical Code,ANSI/NFPA 70, provides
information with regard to proper grounding of
the mast and supporting structure, grounding of
the lead-in wire to an antenna discharge unit, size
of grounding conductors, location of antenna
discharge unit, connection to grounding
electrodes, and requirements for the grounding
electrode. See Figure A.
Figure A.
Example of Antenna Grounding as per
National ElectricalCode ANSI/NFPA 70
18. An outside antenna system should not be
located in the vicinity of overhead power lines
or other electric light or power circuits, or where
it can fall into such power lines or circuits.When
installing an outside antenna system, extreme
care should be taken to keep from touching such
power lines or circuits, as contact with them
might be fatal.
19. Do not overload wall outlets, extension cords,
or integral convenience receptacles, as this can
result in a risk of fire or electric shock.
20. Never push objects of any kind into this
product 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 product.
21. Do not attempt to service this product
yourself,as opening or removing covers may
expose you to dangerous voltage or other hazards.
Refer all servicing to qualified service personnel.
22. When replacement parts are required, be sure
the service technician has used replacement
parts specified by the manufacturer or that have
the same characteristics as the original part.
Unauthorized substitutions may result in fire,
electric shock or other hazards.
23. Upon completion of any service or repairs
to this product, ask the service technician to
perform safety checks to determine that the
product is in proper operating condition.
24. The product should be mounted to a wall or
ceiling only as recommended by the manufacturer.
SW-12 OWNER
S GUIDE
’
Table of Contents
ii Important Safety Precautions
1 Unpacking the Subwoofer
1 Placement
2 Controls and Connections
3 Connections
4 Operation
5 Bass Optimization System
6 Maintenance and Service
7 Specifications
™
SW-12
iii
Infinity SW-12
SUB
RIGHTCHANNEL
SPEAKER
PRIMARY
LISTENING
AREA
The Infinity SW-12 continues Infinity’s long-standing commitment
to accurate sound reproduction. Our patented Ceramic Metal
Matrix Diaphragm (CMMD
proprietary Bass Optimization System,™along with a rigid, wellbraced enclosure, combine to deliver uncompromised bass
performance in any stereo or multichannel home theater.
™
) drivers, high-powered amplifier and
Unpacking the Subwoofer
If you suspect damage from transit, report it immediately to your
dealer. Keep the shipping carton and packing materials for
future use.
PLACEMENT
Since the installation of a subwoofer can be somewhat more
complicated than installing full-range speakers, it is essential
that you read this section very carefully prior to connecting the
subwoofer to your system. Should you have questions relating to
your installation, it is advisable to call either your dealer or
Infinity’s Customer Service Department for advice.
The performance of the subwoofer is directly related to its
placement in the listening room and how you align the subwoofer
with its satellite speakers. Setting the volume of the subwoofer in
relationship to the left and right speakers is also of critical
importance because it is essential that the subwoofer integrate
smoothly with the entire system. Setting the subwoofer’s volume
level too high will result in an overpowering, boomy bass. Setting
the volume level too low will negate the benefits of the
subwoofer.
Here are several additional facts on installation that may prove
useful. It is generally believed by most audio authorities that low
frequencies (below 125Hz) are nondirectional and, therefore,
placement of a subwoofer within any listening room is not
critical. While in theory it is true that the larger wavelengths of
extremely low frequencies are basically nondirectional, the fact
is that, when installing a subwoofer within the limited confines
of a room, reflections, standing waves and absorptions generated
within the room will strongly influence the performance of any
subwoofer system.As a result, the specific location of the
subwoofer becomes important, and we strongly recommend that
you experiment with placement before choosing a final location.
Placement will depend upon your room and the amount and
quality of bass required (for example, whether or not your room
permits placement of the subwoofer near either satellite).
Figure 1.This example shows the subwoofer positioned behind
the right-channel satellite speaker to re-create the actual
location of bass instruments in an orchestra and/or add impact
to movie soundtracks.
1
SW-12
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