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Fine-tuning your system

Figure 21

Bass and treble controls

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In most situations, you only need to follow the speaker placement guidelines (see "Setting

Up" on pages 6-8) for your system to provide excellent sound quality.

You do not need to adjust tone settings for changes in volume, since Bose

processing technology provides a natural tonal balance over the full range of volume settings.

If desired, you can further fine-tune your system as described here.

Adjusting speaker controls

The Lifestyle

12 system TREBLE and BASS controls are located on the Acoustimass

module (Figure 21). They allow you to adjust the treble (high frequencies) and bass (low

frequencies). In the normal setting, the dots on each control are in the 12 o'clock position.

You can also locate the normal setting by feeling when the control settles into the notch at

this position. Turn the controls clockwise to increase, and counterclockwise to decrease, the

amount of treble or bass.

Compensating for room acoustics

The acoustics (sound qualities) of your room can affect the overall sound quality of any

speaker system. In general, you can reduce many problems with acoustics by the cautious

use of the TREBLE and BASS controls.

Too much or too little treble

Rooms with too few sound-absorbing furnishings, especially those with bare floors and walls,

may sound overly shrill or "bright." Turning down the treble control (toward –)

decreases treble sound.

Rooms with a lot of sound-absorbing furnishings, such as upholstered furniture, wall-to-wall

carpet, or heavy drapes, may reduce the treble sound of your system. Moving speakers

further away from soft furnishings increases treble. You can increase treble sound by slightly

turning up the treble control (toward +).

Too much or too little bass

You can decrease bass sound by turning down the bass control (toward –). To increase bass,

turn up the bass control (toward +).

Acoustimass module placement affects the amount of bass you hear. Placing the module

closer to the corner of the room increases bass. Moving the module away from the corner

decreases bass.

Compensating for movie soundtracks

When a movie soundtrack is played in a motion picture theater, its bass is restored to the full

level intended by the movie's sound designer. To perform the same way in your home, your

Lifestyle

12 system restores the bass to this level when you select VIDEO. In VIDEO, AUX, or

TAPE mode, you can choose between standard and enhanced bass.

In VIDEO mode, the system turns on enhanced bass for movies. Press VIDEO again to

change to standard bass.

In AUX or TAPE mode, the system turns on in standard bass. Press AUX or TAPE again to

change to enhanced bass for movies.

December 20, 2001

Maintaining Your Lifestyle

12 System

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