SCS 138 Sub (serv.man11) - JBL Audio User Guide / Operation Manual. Page 10

Press the Master Power
Switch (marked 

Power

¡

) to

the ON position to use the
subwoofer. The subwoofer will
automatically turn itself on or
go into standby (sleep) mode
when left in the standby mode
("Auto/On" switch™ 

™

in the

"Auto" position). When your
receiver or amplifier is off, or is
not sending program material

to the subwoofer, the
subwoofer will be in standby
mode. When the subwoofer
senses an audio signal, it will
automatically turn itself on. If
the subwoofer does not sense
a signal after approximately
twenty minutes, it will
automatically go into standby
mode. When the "Auto/On"
switch™ 

™

is switched to the

"On" position, the subwoofer
will remain on, whether or not
program material is playing. If
you will be away from home for
an extended period of time, or
if the subwoofer will not be
used, switch the Master Power
switch 

¡

to the "OFF" position.

200 Watts

IMPORTANT: CONNECT STRIPED WIRE  TO RED (    ) SPEAKER TERMINAL.

GREEN: ON
RED: STANDBY

+

Volume can be adjusted using
the Subwoofer Volume Control
£, as shown.

The crossover filter between
the subwoofer and satellites
can be adjusted using the
Crossover Control ¢. The

optimum setting for the 
SCS138 system is with the
Crossover Control ¢ set to 
the 

"Max"

position.

™

¢

¡

£