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1. Read Instructions.

All

the safety and operating
instructions should be 
read before the product is
operated.

2. Retain Instructions.

The

safety and operating instruc-
tions should be retained for
future reference.

3. Heed Warnings.

All warn-

ings on the product and in
the operating instructions
should be adhered to.

4. Follow Instructions.

All

operating and use instruc-
tions should be followed.

5. Water and Moisture.

The

product should not be used
near water – for example,
near a bathtub, washbowl,
kitchen sink, laundry tub, in
a wet basement or near a
swimming pool, and the like.

6. Accessories.

Do not place

this product on an unstable
cart, stand, tripod, bracket
or table. The product may
fall, causing serious injury to
a child or adult, and serious
damage to the product. Use
only with a cart, stand, tri-
pod, bracket or table recom-
mended by the manufacturer,
or sold with the product.
Any mounting of the product
should follow the manufac-
turer’s instructions, and
should use a mounting
accessory recommended by
the manufacturer.

7. Wall or Ceiling
Mounting. 

The product

should be mounted on a 
wall or ceiling only when
and as recommended by the
manufacturer.

8. Ventilation.

Slots and

openings in the cabinet are
provided for ventilation and
to ensure reliable operation
of the product and to protect
it from overheating, and
these openings must not be
blocked or covered. The
openings should never be
blocked by placing the prod-
uct on a bed, sofa, rug or
other similar surface. This
product should not be placed
in a built-in installation
such as a bookcase or rack
unless proper ventilation 
is provided or the manufac-
turer’s instructions have
been adhered to.

9. Heat. 

The product should

be situated away from heat
sources such as radiators,
heat registers, stoves or
other products that produce
heat. If placed near an
amplifier, check with 
the manufacturer for 
applicability.

10. Power Sources.

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.

11. Grounding or
Polarization. 

This product

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 pur-
pose of the polarized plug.

12. Power-Cord Protection.

Power-supply cords should
be routed so that they are
not likely to be walked on or
pinched by items placed
upon or against them, pay-
ing particular attention to
cords at plugs, convenience
receptacles and the point
where they exit from the
product.

13. Cleaning.

Unplug this

product from the wall outlet
before cleaning. Do not use
liquid cleaners or aerosol
cleaners. Use a damp cloth
for cleaning.

14. Nonuse Periods.

The

power cord of the product
should be unplugged from
the outlet when left unused
for long periods of time.

15. Lightning. 

For added

protection for this product
during a lightning storm, or
when it is left unattended
and unused for long periods
of time, unplug it from the
wall outlet and disconnect
the antenna or cable system.
This will prevent damage to
the product due to lightning
and power-line surges.

16. Overloading.

Do not

overload wall outlets, exten-
sion cords or integral conve-
nience receptacles, as this
can result in a risk of fire or
electric shock.

17. Object and Liquid
Entry. 

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.

18. Damage Requiring
Service.

Unplug this product

from the wall outlet and
refer servicing to qualified
service personnel under the
following conditions:

a.

The power-supply cord or

the plug has been damaged;
or

b.

Objects have fallen onto,

or liquid has been spilled
into, the product; or

c.

The product has been

exposed to rain or water; or

d.

The product does not

operate normally when fol-
lowing the operating instruc-
tions. Adjust only those con-
trols that are covered by the
operating instructions, as an
improper adjustment of other
controls may result in dam-
age and will often require
extensive work by a qualified
technician to restore the
product to its normal opera-
tion; or

e.

The product has been

dropped, or the enclosure
damaged; or

f.

The product does not

appear to operate normally
or exhibits a marked change
in performance.

19. Attachments. 

Do not

use attachments not recom-
mended by the product man-
ufacturer, as they may cause
hazards.

20. Replacement Parts.

When replacement parts are
required, be sure the service
technician has used replace-
ment parts specified by 
the manufacturer or that
have the same characteris-
tics as the original part.
Unauthorized substitutions
may result in fire, electric
shock or other hazards.

21. Safety Check.

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.

22. Servicing.

Do not

attempt to service this prod-
uct yourself, as opening or
removing covers may expose
you to dangerous voltage or
other hazards. Refer all ser-
vicing to qualified service
personnel.

Part No. JBLULA 10/99

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: To prevent electric shock,

 do not remove the grounding plug 

on the power cord, or use any plug 

or extension cord that does not have 

a grounding plug provided. 

Make certain that the 

AC outlet is properly grounded. 

Do not use an adapter plug 

with this product.

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.

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.

read first!

Important Safety Precautions!

PSW-D112  11/9/99  11:02 AM  Page 2

Summary of Contents for PSW-D112

Page 1: ...r you have chosen will provide every note of enjoyment that you expected and that when you think about pur chasing additional audio equipment for your home car or office you will once again choose JBL Please take a moment to complete the enclosed profile card It enables us to keep you posted on our latest advancements and helps us to better understand our customers and build products that meet the...

Page 2: ...e power cord of the product should be unplugged from the outlet when left unused for long periods of time 15 Lightning For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet and disconnect the antenna or cable system This will prevent damage to the product due to lightning and power line surges...

Page 3: ...ts in your room One technique that can help you find the ideal subwoofer location is to tem porarily place the subwoofer near the main listening loca tion Then move around the room and determine where you hear the most pleasing bass performance This would then be the ideal location for the subwoofer When we designed the PSW D112 powered subwoofer our goal was to offer the user the best possible pe...

Page 4: ...ur receiver proces sor contains Dolby Digital or DTS surround processing technology then set the Low Pass control on the 180Hz position 4 2 If your receiver amplifier has subwoofer outputs or preamp output jacks for the left and right channels Phase 0 180 High Pass 60 180 120 90 150 Low Pass Out Line Level In 60 180 120 90 150 Off On Power R R L L L R SPKR In L R SPKR Out RECEIVER AMPLIFIER SUBWOO...

Page 5: ...ow frequency information that is returned to your receiver amplifier Your receiver amplifier does not need to waste valuable power reproducing the low frequencies In addition since no low frequency information is being sent to your main loudspeakers they are able to reproduce mid and high frequencies with greater clarity Phase 0 180 High Pass 60 180 120 90 150 Low Pass Out Line Level In 60 180 120...

Page 6: ...fforts to the ultradeep bass sounds while your main speakers continue to reproduce the mid bass information If you Level Control The subwoofer Level Control located on the front panel adjusts the volume of the subwoofer relative to the rest of the system Proper level adjustment depends on several variables such as room size subwoofer placement type of main speakers and listener position Adjust the...

Page 7: ...wires are connected Make sure none of the speaker wires are frayed cut or punctured Review proper operation of your receiver amplifier If there is low or no bass output Make sure the connections to the left and right Speaker Inputs have the correct polarity and Make sure that the sub woofer is plugged into an active electrical outlet Adjust the crossover point Flip the Phase Control switch to the ...

Page 8: ...Part No 200731 Specifications PSW D112 Amplifier Power RMS 250 Watts Driver 12 High Polymer Laminate Inputs Line Level and Speaker Level Outputs Line Level and Speaker Level Low Pass Frequency Continuously variable from 60Hz 180Hz High Pass Frequency Continuously variable from 60Hz 180Hz when using line level outputs 180Hz when using speaker level outputs Frequency Response 28Hz low pass crossover...

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