HT PS300
Powered
Subwoofer
simple
set-up guide
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JBL Consumer Products
JBL loudspeaker you have
read first! Important Safety Precautions!
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.
1. Read Instructions. All the
safety and operating instructions
should be read before the product
is operated.
2. Retain Instructions. The safety
and operating instructions should
be retained for future reference.
3. Heed Warnings. All warnings on
the product and in the operating
instructions should be adhered to.
4. Follow Instructions. All
operating and use instructions
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, tripod, bracket,
or table recommended by the manufacturer, or sold with the product.
Any mounting of the product should
follow the manufacturer’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
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.
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 purpose 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,
paying 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, extension cords, or
integral convenience 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 following the operating instructions. Adjust only those
controls that are covered by
the operating instructions, as an
improper adjustment of other controls may result in damage and will
often require extensive work by a
qualified technician to restore the
product to its normal operation; 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 recommended by
the product manufacturer, as they
may cause hazards.
20. Replacement Parts. 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.
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 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
one. Speaker Placement
≥6"
≥6"
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 subwoofer, 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 videoshielded, it may be placed in
proximity to a television
monitor, if desired.
Front view
Top view
two. Hookup
High Level
Inputs
High Level
Outputs
L R
L R
Phase
0°
180°
On
Output
Level
Crossover
Frequency
Stby
0 10
50Hz 120Hz
+ – – +
+ – – +
Line
THX
THX
Controls
Bypassed
Line Level
Input
Input Output
( )
Subwoofer
Out
Receiver/Processor
Subwoofer
Out
Sub 1Receiver/Processor Sub 2
THX
Controls
Bypassed
Input Output
( )
THX
Controls
Bypassed
Input Output
( )
Line-Level Inputs
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 THXquality 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.
Normal Mode:
High Level
Inputs
High Level
Outputs
L R
L R
Phase
0°
180°
On
Stby
0 10
50Hz 120Hz
+ – – +
+ – – +
Line
THX
THX
Controls
Bypassed
Line Level
Input
Input Output
( )
Subwoofer
Out
L R
Output
Level
Crossover
Frequency
Receiver/Amplifier
High Level
Inputs
High Level
Outputs
L R
L R
Phase
0°
180°
On
Stby
0 10
50Hz 120Hz
+ – – +
+ – – +
+ – – +
+ –
Line
THX
THX
Controls
Bypassed
Line Level
Input
Input Output
( )
Left
Front Speaker
+ –
Right
Front Speaker
Front Speakers
Left Right
Output
Level
Crossover
Frequency
Receiver/Amplifier
If your surround processor/
receiver does not contain a
subwoofer crossover.
Note: Some receivers/
processors have a mono
subwoofer output. In this
case, you must use a “Y”connector (not included) in
order to maximize the subwoofer’s performance.
High Level
If your receiver does not
have subwoofer outputs:
Operation
0 10
Output
Level
0 10
Output
Level
The HT PS300 contains a
signal sensing auto turnon/off circuit. This feature
will automatically turn the
subwoofer on when you turn
your system on and begin
playing any program material.
The subwoofer will return to
standby when no signal is
received for approximately
5 minutes. The power switch
is for vacation use only.
Standby On
Mode Procedure LED Status LED Status
Off Power switch off Off Off
On Power switch on and play program material Off On
Standby Simply turn off your receiver/processor. The HT PS300 will On Off
turn off after approximately five minutes. The subwoofer will
turn on when your receiver/processor begins playing again.
Output Level
Note: When the THX/Normal
switch is set to “THX,” the
output control is bypassed.
Output level is then adjusted
at the THX processor.
Crossover Frequency
The Crossover Frequency
adjustment determines
the highest frequency the
HT PS300 will reproduce. It
allows a seamless transition
from the subwoofer to the
Phase
The Phase switch is used to
adjust the relative polarity of
the subwoofer. Listen to your
HT PS300 subwoofer and main
speakers with the switch in
the “0°” position, then listen
to the same material with the
satellite speakers. Experiment
with this adjustment to
find the crossover frequency
that sounds best with your
speakers.
switch set to “180°”. Decide
which sounds better and
leave the switch in this position. Repeat this procedure if
you change the location of
the subwoofer.
Note: When the THX/Normal
switch is set to “THX,” the
internal crossover is bypassed.
Crossover frequency is then
adjusted at the THX processor.
Troubleshooting
If there is no output from
the subwoofer, check the
following:
• System is on and a source
is playing.
• The HT PS300 is plugged in
and “Power” is on.
• If you are using the
THX input, make sure the
THX/ Normal switch is set
to “THX.”
• If you are not using the
THX input, make sure the
THX/ Normal switch is set
to “Normal.”
• If you are using the “High
Level Inputs,” check all wires
and connections between the
receiver/amplifier and the
subwoofer. Make sure all wires
are connected and that none
of the speaker wires are
frayed, cut, or punctured.
• Adjust the “Output Level”
control.
• Review proper operation of
your receiver/amplifier.
If there is low bass output,
check the following:
• Make sure that the subwoofer is plugged into a live
electrical outlet and the
“Power” is on.
• If you are using the “High
Level Inputs,” make sure the
connections to the left and
right “High Level Inputs”
have the correct polarity
(+ and –).
• Adjust the “Crossover
Frequency.”
• Adjust the “Output Level”
control.
• Change the setting on the
“Phase” switch.
If you are hearing midrange
frequencies (such as voices)
through the subwoofer,
check the following:
• When using the THX mode,
make sure the subwoofer
crossover is activated on your
processor/receiver.
• When using the “Line
Level” or “High Level Inputs,”
adjust the “Crossover
Frequency” to a lower
frequency.
C
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B
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5
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A Harman International Company
Specifications
Amplifier Power
200 watts
Drivers
Dual 12" with polymer-laminated cones
Inputs
THX and normal line level, high level
Outputs
High level
Crossover Frequency –
Normal and High Level Inputs
50Hz – 120Hz (continuously adjustable)
Frequency Response (Determined by crossover setting)
25Hz – crossover point
Dimensions (HxWxD)
21-3/4 x 21 x 21"
552 x 533 x 533mm
Weight
67 lbs/30.5 kg
Occasional refinements may
be made to existing products
without notice, but will always
meet or exceed original specifications unless otherwise
stated.
JBL Consumer Products
80 Crossways Park West, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
1-800-336-4JBL (4525) (USA only)
1996 JBL, Incorporated. JBL is a registered trademark of JBL, Incorporated.
©
Lucasfilm and THX are registered trademarks of Lucasfilm Ltd.
Printed in Canada 12/96 Part No. HTPS300OM
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