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JBL Cinema 500 Manual

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ENGLISH
OPERATING THE SUBWOOFER
TURNING THE SUBWOOFER ON AND OFF
Set the subwoofer’s Power Switch to the “On” position.
If the subwoofer’s Power-On Mode Switch is set to “Auto,” the subwoofer •
will automatically turn itself on when it receives an audio signal, and it will
go into Standby mode after it has received no audio signal for 20 minutes.
The subwoofer’s LED will glow green when the subwoofer is on and will
glow red when the subwoofer is in Standby.
If the Power-On Mode Switch is set to “On,” the subwoofer will remain on •
at all times. The subwoofer’s LED will glow green.
If you will not be using the subwoofer for an extended period – for instance,
if you’re going on vacation – set the Power Switch to the “Off” position.
SUBWOOFER ADJUSTMENTS: CROSSOVER CONTROL
NOTE: The Crossover Control functions only when
you are using the Line-Level In L/R Connectors. The
Line-Level In LFE Connector bypasses the subwoofer’s
built-in crossover and the Crossover Control.
The Crossover Control adjusts the subwoofer’s built-in
crossover between 50Hz and 200Hz. The higher you
set the Crossover Control, the higher in frequency
the subwoofer will operate and the more its bass will
“overlap” that of the satellite speakers. This adjustment
helps achieve a smooth transition of bass frequencies between the
subwoofer and the satellites for a variety of different rooms and subwoofer
locations.
To set the Crossover Control, listen for the smoothness of the bass. If the
bass seems too strong at certain frequencies, try a lower Crossover Control
setting. If the bass seems too weak at certain frequencies, try a higher
Crossover Control setting.
SUBWOOFER ADJUSTMENTS: VOLUME
Use the Subwoofer Level Control to set the subwoofer’s
volume. Turn the knob clockwise to increase the
subwoofer’s volume; turn the knob counterclockwise
to decrease the volume. Once you have balanced the
subwoofer’s volume with that of the other speakers in
your system, you shouldn’t have to change it.
Notes on Setting Subwoofer Volume:
Sometimes the ideal subwoofer volume setting for •
music is too loud for films, while the ideal setting
for films is too quiet for music. When setting the
subwoofer volume, listen to both music and films with strong bass content
and find a “middle ground” volume level that works for both.
If your subwoofer always seems too loud or too quiet, you may want to •
place it in
a different location. Placing the subwoofer in a corner will always tend to
increase its bass output, while placing it away from any walls or corners
will always tend to lessen its bass output.
SUBWOOFER ADJUSTMENTS: PHASE
The Phase Switch determines whether
the subwoofer driver’s piston-like action
moves in and out in phase with the satellite
speakers. If the subwoofer were to play
out of phase with the satellite speakers,
the sound waves from the satellites could
partially cancel out the waves from the
subwoofer, reducing bass performance and
sonic impact. This phenomenon depends in part on the placement of all the
speakers relative to each other in the room.
Although in most cases you should leave the Phase Switch in the “Normal”
position, there is no absolutely correct setting for the Phase Switch. When
the subwoofer is properly in phase with the satellite speakers, the sound will
be clearer and have maximum impact, and percussive sounds like drums,
piano and plucked strings will sound more lifelike. The best way to set the
Phase Switch is to listen to music that you know well and to set the switch in
the position that gives drums and other percussive sounds maximum impact.
0234CSK - JBL Cinema 500 Quick Start ENG.indd 9 05/10/10 12:29:21
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  • when power sub switch on light is continue flashing ? no idea Submitted on 20-5-2021 at 00:06

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