Bose Acoustimass 6 - Manual (Page 14)

14 December 20, 2001 AM189815_04_V.pdf
Figure 14
A Dolby Pro-Logic receiver set for
NORMAL center mode
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Using Your Acoustimass ® -6 Speakers
For realistic home theater sound
Each speaker produces only the sound directed to it by the steering logic in your surround
sound receiver. During a surround sound program, the front and center speakers will emit
sound almost constantly, while the surround speakers may be silent for periods of time.
How to set your Pro-Logic receiver
For use in video applications, be sure the SURROUND SOUND center mode setting of your
receiver is on NORMAL (Figure 14). You may press in the button labeled Loudness (Bass
Boost or Super Bass on some receivers) to see if you prefer that video sound.
Use the test tone on your receiver to further verify connections and to adjust the volume
level of the speakers.
To use the test tone
1. Press test tone ON at the remote.
2. Listen and confirm that each speaker reproduces sound as the tone moves from speaker
to speaker in this order: LEFT, CENTER, RIGHT, SURROUND. One tone should come
from both SURROUND speakers at the same time.
3. Adjust the volume levels of the CENTER and SURROUND speakers to achieve the
balance you prefer for your listening area.
Instructions for this process vary, depending on the brand and model of receiver you are
using. Follow your receiver owner’s guide instructions for more details on using the test tone.
To balance the bass and treble
Upholstered furniture, wall-to-wall carpets, or heavy drapes can muffle treble (high notes),
making your speaker system sound bass heavy. Bare floors and walls and hard surface
furniture can make your speaker system sound too shrill. After listening to your speakers,
you may want to adjust the balance of bass and treble. You can use the bass and treble
controls on your receiver.
Suggestion for spacious stereo sound
Try setting your receiver to the PHANTOM surround mode while listening to music from a CD
or cassette tape. This will enable you to enjoy a wide stereo image reproduced by the front
speakers, plus the ambience and spaciousness provided by your surround speakers.
If your receiver has a Loudness button, turn that off during regular stereo playback.
How to set your Dolby Digital (AC-3) receiver
Your Acoustimass-6 speakers are compatible with the output from Dolby Digital (AC-3)
receivers. Take special care to set the channel output according to the specifications listed in
the chart below. The Acoustimass speaker system is a full-range system and must be set as
LARGE speakers on the Dolby Digital screen menu. An exception is the center speaker,
which must be set as SMALL. Turn the subwoofer OFF. Finally, turn the LFE (low-frequency
effects) ON and set the crossover frequency to 200 Hz.
Receiver channel output Proper setting
Left and Right Front ............................................ LARGE
Center ................................................................. SMALL
Left and Right Surround ..................................... LARGE
Subwoofer ............................................................. OFF
LFE (low-frequency effects) .................................... ON
Crossover frequency ........................................... 200 Hz
Follow the receiver owner’s guide instructions for using the receiver test tone to verify your
connections and to adjust the volume levels of the speakers.