AM264271_00_V.pdf November 19, 2001 9
Operating Your 901
®
Powered Speaker System
Listening to your 901
®
powered speaker system
The 901 powered speaker system is intended to be used as a ZONE 2 speaker system. A
ZONE 2 remote control is recommended. Please see your LIFESTYLE
®
system’s owner’s
guide for complete instructions or contact Bose
®
customer service for assistance. See the
address and phone number list included with your system.
Adjusting the sound quality
In most situations, placing your speakers according to the guidelines given in “Placing the
speakers” on page 5, will result in excellent sound quality.
You do not need to adjust tone settings for different volume settings. Bose patented signal
processing technology provides a natural tonal balance over the full range of volume settings.
If you wish to fine-tune the tonal balance further, use the TREBLE and BASS controls.
Figure 6
Powered (left) speaker
control panel
Treble and bass controls
The TREBLE and BASS controls are located on the powered speaker pedestal (Figure 6).
They allow you to adjust the treble (high frequencies) and bass (low frequencies). In the nor-
mal setting, the dot on each control is in the 12 o’clock position. You can also locate the nor-
mal setting by feeling when the control settles into the notch at this position. Turn the controls
clockwise to increase, or 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 few sound-absorbing furnishings, especially those with bare floors and walls,
may sound overly shrill or “bright”. Turning down the treble control (toward –) decreases tre-
ble 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 far-
ther 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 +).
Speaker placement affects the amount of bass you hear. Placing the speakers closer to the
corners of the room will increase bass. Keep the speakers within 2 to 4 feet (60–120 cm) of
the side walls (see “Placing the speakers” on page 5). If you want to increase bass further,
starting at 16 inches from the back wall, move the tips of the V-shaped rear panels slightly
closer to the wall (but no closer than 8 inches).
®
901
®
DIRECT REFLECTING
®
POWERED SPEAKER SYSTEM
OUTPUT
TO
ACCESSORY
SPEAKER
FROM
LIFESTYLE® MUSIC
CENTER
INPUT
BASS
– +
NORM
TREBLE
– +
NORM
POWER
ON
OFF
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RISQUE DE CHOC ÉLECTRIQUE
NE PAS OUVRIR
AVIS
MAY BE COVERED BY PAT. RIGHTS ISSUED AND PENDING
INCLUDING U.S. PAT.3,582,533 4,061,890 4,146,745 4,158,756
4,739,514 AND RE31679. PATENTED IN CANADA 1974, 1980
© 1994 BOSE CORPORATION
SERIAL NUMBER
D.O.M.
BOSE CORPORATION, FRAMINGHAM, MA 01701-9168
MADE IN U.S.A.
(44 pages)
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