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18 October 29, 2001 AM178934_09_V.pdf
English
Operating Your Lifestyle
®
20 Music System
Fine-tuning your system
In most situations, following the speaker placement guidelines (see page 6) for your
Lifestyle
®
20 music system provides excellent sound quality.
You do not need to adjust tone settings for changes in volume, since Bose
®
patented signal
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 below.
Adjusting speaker controls
The Lifestyle
®
20 music system TREBLE and BASS controls are located on the
Acoustimass
®
module (Figure 24). 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 will increase bass. Moving the module away from the
corner will decrease bass.
Figure 24
Bass and treble controls
®
T
re
b
le
B
a
s
s