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HT PS 300 (120V) OM  7/22/98 2:05 PM  Page 1

All the 

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

The safety

and operating instructions should
be retained for future reference.

All warnings on

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

All 

operating and use instructions
should be followed.

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.

Do not place this

product on an unstable cart, stand,
tripod, bracket, or table. The prod-
uct 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 the manu-
facturer, or sold with the product.
Any mounting of the product should
follow the manufacturer’s instruc-
tions, and should use a mounting
accessory recommended by the 
manufacturer.

The

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

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
product 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 manufacturer’s
instructions have been adhered to.

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.

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.

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, con-
tact your electrician to replace your 
obsolete outlet. Do not defeat the
safety purpose of the polarized
plug.

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, 
paying particular attention to cords
at plugs, convenience receptacles,
and the point where they exit from
the product.

Unplug this product

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

The power

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

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.

Do not overload

wall outlets, extension cords, or
integral convenience receptacles, as
this can result in a risk of fire or
electric shock.

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.

Unplug this product from the wall
outlet and refer servicing to quali-
fied service personnel under the 
following conditions:

The power-supply cord or the

plug has been damaged; or

Objects have fallen onto, or 

liquid has been spilled into, the
product; or

The product has been exposed to

rain or water; or

The product does not operate

normally when following the operat-
ing instructions. Adjust only those 
controls that are covered by 
the operating instructions, as an
improper adjustment of other con-
trols may result in damage and will
often require extensive work by a
qualified technician to restore the
product to its normal operation; or

The product has been dropped,

or the enclosure damaged; or

The product does not appear to

operate normally or exhibits a
marked change in performance.

Do not use

attachments not recommended by
the product manufacturer, as they
may cause hazards.

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.

Upon completion

of any service or repairs to this
product, ask the service technician
to perform safety checks to deter-
mine that the product is in proper
operating condition.

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.

Part No. JBLULA 6/96

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.

HT PS 300 (120V) OM  7/22/98 2:05 PM  Page 2

The ideal placement for the 
HT PS300 is along the wall
where the front speakers are
installed. Because of the 
side firing design of the sub-
woofer, it is recommended
that the woofers be placed in
a corner at least six inches
away from the side walls.
Since the HT PS300 is video-
shielded, it may be placed in
proximity to a television 
monitor, if desired.

≥

≥

Front view

Top view

HT PS 300 (120V) OM  7/22/98 2:05 PM  Page 3

THX® Mode:
If your surround processor/
receiver is THX certified or 
contains a subwoofer
crossover.

°

°

(          )

Note: When the THX/Normal
switch is set to “THX,” the
internal crossover and output
level control are bypassed.

(          )

(          )

To continue enjoying THX-
quality bass response in a
very large room, two or more
HT PS300 subwoofers may be
connected in series. For every
3000 cu. ft. of room volume,
it is recommended that you
use one HT PS300.

HT PS 300 (120V) OM  7/22/98 2:05 PM  Page 4