Bose Acoustimass 3 Series III - Manual (Page 7)

Connections/ Maintenance
Check the system
1^1^ sure your system is working properly by following these steps:
1. Turn on your amplifier or receiver.
2. Turn the balance control on your ampliHer all the way to the left. You should hear music
from the left cube speaker only. You may detect a faint sound from the other cube
speaker. (You will also hear the bass module.)
3 . Turn the balance control all the way to the right. Now you should hear music from the right
cube speaker only. You may also hear a faint sound from the left cube speaker, as well as
the bass module.
4 . Now play music that includes some deep bass passages. Listen with the balance control
in the center position. Compare that sound to what you hear with the balance control in
the far left position. Then compare the sound in the center balance position with sound
when the control is in the right position. The bass should be the same or louder with the
control in the center. Be sure to return the balance control to the center position when you
are done.
If your system does not respond as described, check all the wires for proper positive to
positive and negative to negative connections. If your system still doesn't respond properly,
see “Problems and causes” on page 8.
Cleaning your speakers
C^n the cabinets of your Acoustimass*-3 system using a damp cloth. If necessary, use a
^Hdetergent such as dish soap. Do not use any solvents, chemicals, or cleaning solutions
containing alcohol, ammonia, or abrasives. Do not allow liquids to spill through the speaker
grilles or enter the Acoustimass module.
You can vacuum the speaker grilles. To avoid damaging the drivers located directly behind the
grille cloth, use light pressure only.
Automatic system protection
When played at high volume, the Acoustimass-3 system’s automatic protection circuit acti­
vates to prevent damage to the system from electrical stress or overload. When this happens,
you may notice a slight decrease in volume, which Is normal. It indicates that the power input
may have exceeded safe levels. Setting the volume at or above this level for sustained periods
is not recommended.