Bedienungsanleitung JBL CS480 (Seite 9 von 12) (Englisch)

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OPERATION

Surround Modes

When using the CS480 in a Dolby Digital or DTS home theater system,

make sure all speakers are set to “Small”. In a Dolby Pro Logic®home

theater system, make sure the receiver’s center channel mode is set

to “Normal.”

Some Dolby Digital-equipped receivers/processors offer different

setup options for each source or surround mode (e.g., CD-stereo,

videotape, Dolby, Pro Logic). In each case, follow your equipment’s

instructions to ensure that the subwoofer output is turned on and that

the speakers are set to “Small” in each mode.

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 Control 1to the“MIN” position.

Turn on the subwoofer by pressing the Power Switch 6on the

rear panel.

Turn on your entire audio system and start a CD or movie soundtrack

at a moderate level.

Auto On/Standby

With the Power Switch 6in the ON position, the LED on the rear

panel 5will remain lit in green or red to indicate the ON or STANDBY

mode of the subwoofer.

RED = STANDBY (No signal detected, Amp Off)

GREEN = ON (Signal detected, Amp On)

The subwoofer will automatically 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 6

can be left on. You may turn off the Power Switch 6for extended

periods of nonoperation, e.g., when you are away on vacation.

Adjust Level

Turn the Subwoofer-Level Control 1up about halfway.If no sound

emanates from the subwoofer, check the AC-line cord and input

cables. Are the connectors on the cables making proper contact? Is

the AC plug connected to a “live” receptacle? Has the Power Switch

6been pressed to the ON position? Once you have confirmed that

the subwoofer is active, proceed by playing a CD or DVD. Use a

selection that has ample bass information.

Set the overall volume control of the receiver/processor to a comfort-

able level. Adjust the Subwoofer-Level Control 1until you obtain

apleasing blend of bass. Bass response should not overpower the

room but rather 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 experi-

enced listener will set the volume of the subwoofer so its impact on

bass response is always there but never obtrusive.

Phase Control

The Phase Switch 2determines 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 room size, subwoofer placement and

listener position. Adjust the phase switch to maximize bass output at

the listening position.

Final Positioning

After correctly connecting the CS480 system and verifying that both the

subwoofer and all satellite speakers are playing, it is time to optimize

the system for your particular listening room. Earlier, you placed the

subwoofer in its general location. Finding the exact location for optimum

performance sometimes only involves moving the speakers up to a

few inches in any direction. We urge you, therefore, to experiment

with placement, if possible, until your speakers deliver their full

potential.

AFew Suggestions

We recommend that you do not operate your speakers or subwoofer with

the bass, treble and loudness controls set to full boost. This will place

undue strain on your electronics and speakers, and could damage them.

The volume control setting on your processor/preamp or receiver is not a

specific indication of the overall loudness level of the speakers. The only

important consideration is the loudness level at which the system can be

played, regardless of where the volume control is set.

Always turn down the volume control setting on your processor/preamp

or receiver when changing sources, or switching inputs to AM or FM

operation. Excessively loud transients (clicks or popping sounds) can

damage the satellite speakers and possibly the subwoofer.

Maintenance and Service

The satellite and subwoofer enclosures may be cleaned using a soft cloth

to remove fingerprints or to wipe off dust.

All wiring connections should be inspected and cleaned or remade peri-

odically. The frequency of maintenance depends on the metals involved

in the connections, atmospheric conditions and other factors, but once

per year is the minimum.

In the event that your system ever needs service, contact your

local JBL

dealer or distributor, or visit www.jbl.com

for a service center near you.

CS 480-120V om.qxd 12/15/06 4:43 PM Page 11

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