HT PS300
Powered
Subwoofer
simple
set-up guide
thank you
for choosing JBL. For over 50 years, JBL has
been involved in every aspect of musical and film recording and
reproduction, from live performances to monitoring the recordings
you play in your home, car, or office.
We’re confident that the JBL loudspeaker you have
chosen will provide every note of enjoyment that you expected –
and that when you think about purchasing additional audio
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JBL Consumer Products
one.
Speaker Placement
Front view
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.
≥6"
Top view
≥6"
two.
Hookup
Line-Level Inputs
THX® Mode:
If your surround processor/
receiver is THX certified or
contains a subwoofer
Output
Level
Crossover
Frequency
On
crossover.
Receiver/Processor
Stby
0
10
50Hz 120Hz
Subwoofer
Out
Input Output
THX
Controls
THX
Line
0°
(
)
Bypassed
Phase
Line Level
Input
180°
L
R
High Level
Inputs
Note: When the THX/Normal
switch is set to “THX,” the
internal crossover and output
level control are bypassed.
+
+
–
–
–
–
+
+
High Level
Outputs
L
R
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.
Receiver/Processor
Sub 1
Sub 2
Subwoofer
Out
Input Output
Input Output
THX
Controls
Bypassed
THX
Controls
)
Bypassed
(
)
(
Normal Mode:
If your surround processor/
receiver does not contain a
subwoofer crossover.
Output
Level
Crossover
Frequency
On
Receiver/Amplifier
Stby
0
10
50Hz 120Hz
Subwoofer
Out
Input Output
THX
Controls
THX
Line
0°
(
)
L
R
Bypassed
Phase
Line Level
Input
180°
L
R
Note: Some receivers/
processors have a mono
High Level
Inputs
subwoofer output. In this
case, you must use a “Y”-
connector (not included) in
order to maximize the sub-
woofer’s performance.
+
+
–
–
–
–
+
+
High Level
Outputs
L
R
Receiver/Amplifier
Front Speakers
High Level
If your receiver does not
have subwoofer outputs:
Left
Right
+
–
–
+
Output
Level
Crossover
Frequency
On
Stby
0
10
50Hz 120Hz
Input Output
THX
Controls
Bypassed
THX
Line
0°
(
)
Phase
Line Level
Input
180°
L
R
High Level
Inputs
+
+
–
–
–
–
+
+
High Level
Outputs
L
R
Left
Front Speaker
Right
Front Speaker
+
–
+
–
Operation
The HT PS300 contains a
signal sensing auto turn-
on/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
LED Status LED Status
Off
Off
On
Mode
Off
Procedure
Power switch off
Off
On
Off
On
Power switch on and play program material
Standby Simply turn off your receiver/processor. The HT PS300 will On
turn off after approximately five minutes. The subwoofer will
turn on when your receiver/processor begins playing again.
Output Level
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.
0
10
Output
Level
0
10
Crossover Frequency
The Crossover Frequency
adjustment determines
satellite speakers. Experiment
with this adjustment to
find the crossover frequency
that sounds best with your
speakers.
Note: When the THX/Normal
switch is set to “THX,” the
internal crossover is bypassed.
Crossover frequency is then
adjusted at the THX processor.
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
switch set to “180°.” Decide
which sounds better and
leave the switch in this posi-
tion. Repeat this procedure if
you change the location of
the subwoofer.
Troubleshooting
If there is no output from
the subwoofer, check the
following:
If there is low bass output,
check the following:
If you are hearing midrange
frequencies (such as voices)
through the subwoofer,
check the following:
• Make sure that the sub-
woofer 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.
• 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.
• 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.
• Review proper operation of
your receiver/amplifier.
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 speci-
fications 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
A Harman International Company
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