Bedienungsanleitung JBL Array series (Seite 9 von 12) (Englisch)

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Power On

Plug your subwoofer’s AC cord

into a wall outlet. Do not use

the outlets on the back of the

receiver.

Initially set the Subwoofer

Level (Volume) Control ¢to

the “min” position.

Turn on your sub by pressing

the Power Switch ªon the

rear panel.

Auto On/Standby

With the Power Switch ª

in the “on” position, the Power

Indicator LED £will remain

backlit in red or green to

indicate the On/Standby

mode of the subwoofer.

RED = STANDBY (No signal

detected, Amp Off)

GREEN = ON (Signal detected,

Amp On)

The subwoofer will auto-

matically enter the Standby

mode after approximately 10

minutes when no signal is

detected from your system.

The subwoofer will then power

ON instantly when a signal is

detected. During periods of

normal use, the Power Switch

ªcan be left on. You may turn

off the Power Switch ªfor

extended periods of non-

operation, e.g., when you are

away on vacation.

If the Auto Switch •is in the

“on” position, the subwoofer

will remain on.

Adjust Level

Turn on your entire audio

system and start a CD or movie

soundtrack at a moderate

level. Turn up the Subwoofer

Level (Volume) Control ¢

about halfway. If no sound

emanates from the subwoofer,

check the AC-line cord and

input cables. Are the con-

nectors on the cables making

proper contact? Is the AC

plug connected to a “live”

receptacle? Has the Power

Switch ªbeen pressed to

the “on” position? Once you

have confirmed that the sub-

woofer is active, proceed by

playing a CD or movie. Use a

selection that has ample bass

information.

Set the overall volume control

of the preamplifier or stereo

to a

comfortable level. Adjust

the Subwoofer Level (Volume)

Control

¢until you obtain a

pleasing blend of bass. Bass

response should not over-

power the room but rather

should be adjusted so there is

a harmonious blend across the

entire musical range. Many

users have a tendency to set

the subwoofer volume too

loud, adhering to the belief

that a subwoofer is there to

produce lots of bass. This is

not entirely true. A subwoofer

is there to enhance bass,

extending the response of

the entire system so the bass

can be felt as well as heard.

However, overall balance

must be maintained or the

music will not sound natural.

An experienced listener will

set the volume of the sub-

woofer so its impact on bass

response is always there but

never obtrusive.

Crossover Adjustments

NOTE: This control will have

no effect if the LP/LFE Selector

Switch ¶is set to “LFE.” If

you have a Dolby Digital or

DTS processor/receiver, the

Crossover Frequency is set

by the processor/receiver.

Consult your owner’s manual

to learn how to view or change

this setting.

The Crossover Adjustment

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 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

frequencies, set the Crossover

Adjustment Control to a higher

setting, between 120Hz and

150Hz.

Phase Control

The Phase Switch §deter-

mines whether the subwoofer

speaker’s pistonlike action

moves in and out with the main

speakers (0˚) or opposite the

main speakers (180˚). 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.

1500 ARRAY OPERATION

Project Array OM 1/10/06 12:21 PM Page 9

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JBL Array series Seite 9

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