E250P/P12SW subwoofers
OPERATION
Power
When the unit is plugged in and the power switch is on and no signal is received, the LED on the top of the unit*will turn red. When a signal is present, the LED will turn green.
Note: It will take several min- utes for the LED to turn from green to red after the input signal to the subwoofer is removed. Due to JBL’s unique
sumption is minimal when the subwoofer is not receiving a signal. Of course, the sub- woofer can be turned off, whenever desired, if you do not wish to leave it in auto (standby) mode.
* E250P: LED is on the amplifier faceplate
Level Control
The subwoofer Level Control adjusts the volume of the subwoofer relative to the rest of the system. Proper level adjustment depends on sev- eral variables such as room
size, subwoofer placement, type of main speakers and position. Adjust the subwoofer level so that the volume of the bass information is pleasing to you.
Crossover Adjustments
The Crossover Frequency Control determines the highest frequency at which the sub- woofer reproduces sounds. If your main speakers can com- fortably reproduce some low- frequency sounds, set this control to a lower frequency setting, between 50Hz and 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 extend to the lower bass fre- quencies, set the
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