JBL Speaker HT PS300 User Manual

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  
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 your needs and expectations.  
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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