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7

T R O U B L E S H O O T I N G

If you used the high-level
(speaker) inputs and there 
is no sound from any of the
speakers:

• Check that receiver/amplifier
is on and a source is playing.
• Check that powered
subwoofer is plugged into 
an active electrical outlet 
and is switched on.
• Check all wires and
connections between
receiver/amplifier and
speakers. Make sure all 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
subwoofer is plugged into an
active electrical outlet and
switched on.
• Adjust the crossover point.
• Flip the Phase Control
switch to the opposite
position.
• If you are using a Dolby
Digital/DTS receiver or 
processor, make sure that the
subwoofer adjustments on 
the receiver/processor are 
set up correctly.
• Slowly turn the Level 
Control clockwise until you
begin to hear the desired
amount of bass.

If you used the line-level
inputs and there is no sound
from the subwoofer:

• Check that receiver/amplifier
is on and a source is playing.
• Check that powered
subwoofer is plugged into an
active electrical outlet and is
switched on.
• Check all wires and con-
nections between receiver/
amplifier and subwoofer.
Make sure all wires are
connected. Make sure none
of the wires are frayed, cut 
or punctured.
• Review proper operation of
your receiver/amplifier.
• Slowly turn the Level 
Control clockwise until you
begin to hear the desired
amount of bass.
• Make sure that you have
configured your receiver/
processor so that the
subwoofer/LFE output is on.

Phase Control

The Phase Control determines
whether the subwoofer’s
piston-like action moves in
and out in phase with the
main speakers or opposite
the main speakers. There is
no correct or incorrect
setting. Proper phase
adjustment depends on
several variables such as
subwoofer placement and
listener position. Adjust the
phase switch to maximize

bass output at the listening
position.

Remember, every system,
room and listener is different.
There are no right or wrong
settings; this switch offers the
added flexibility to adjust your
subwoofer for optimum
performance for your specific
listening conditions without
having to move your
speakers. If at some time 

in the future you happen to
rearrange your listening room
and move your speakers, you
should experiment with the
phase switch in both
positions, and leave it in 
the position that maximizes
bass performance.

Содержание PowerBass PB10

Страница 1: ...hen using 150Hz when using speaker level output speaker level outputs Frequency Response 27Hz low pass 25Hz low pass crossover setting crossover setting Dimensions H x W x D 14 16 with feet x 14 x 15 15 1 2 17 1 2 with feet x 15 x 16 356mm 406mm with feet x 394mm 445mm with feet x 356mm x 381mm 381mm x 406mm Weight 35 lb 15 9kg 40 lb 18 2kg JBL Consumer Products 250 Crossways Park Drive Woodbury N...

Страница 2: ...fice 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 their needs and expectations JBL Consumer Products D E S I G N G O A L Bring the thrill of live performance and movie sound to the home environment by calling on JBL s ...

Страница 3: ...roduct 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 17 Power Lines An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits or w...

Страница 4: ...ion options Please look over the following three examples to determine which description best matches your system and follow the corresponding hookup instructions To use the binding post speaker terminals with bare wire unscrew the collar until the hole through the center post is visible under the collar Insert the bare end of the wire through the hole in the post then screw the collar back down u...

Страница 5: ...y has one subwoofer output jack then you may connect the subwoofer output on your receiver preamplifier to either the left or right line level input on the subwoofer It makes no difference which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure your receiver or processor is configured cor rectly Make sure that the sub woofer is conf...

Страница 6: ...er output on your receiver preamplifier to either the left or right line level input on the subwoofer It makes no difference which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure that you have configured your surround sound processor for Subwoofer On or LFE On The front left front right center and rear speakers should be set to Sm...

Страница 7: ...r Frequency Control determines the highest frequency at which the subwoofer reproduces sounds If your main speakers can comfortably reproduce some low frequency sounds set this control to a lower frequency setting between 50Hz 100Hz This will concentrate the subwoofer s efforts on the ultradeep bass sounds required by today s films and music If you are using smaller bookshelf speakers that do not ...

Страница 8: ...aying Check that powered subwoofer is plugged into an active electrical outlet and is switched on Check all wires and con nections between receiver amplifier and subwoofer Make sure all wires are connected Make sure none of the wires are frayed cut or punctured Review proper operation of your receiver amplifier Slowly turn the Level Control clockwise until you begin to hear the desired amount of b...

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