Bose Acoustimass 10 Series IV - Manual (Page 11)

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U
SING
Y
OUR
S
YSTEM
Getting the most from your home theater speakers
With system connections completed and the module plugged in, your Acoustimass ® system
is now ready for use.
You may want to familiarize yourself with the controls and built-in protections that adjust
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the audio of this system (Figure 9). They offer options to suit your particular style of use and
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preferences.
CAUTION: This system provides an automatic protection circuit to help guard against damage
from electrical stresses and overload of the system. At high volume levels, the circuit activates to
reduce output, which slightly decreases the volume. If you notice this decrease, be aware that
your system is functioning as designed. This volume reduction also indicates that power input
to the system may exceed safe levels. Sustained listening at these levels is not recommended.
Figure 9
Audio adjustment knobs
Adjusting the bass/room compensation
After placing the Acoustimass module where you want it, you can fine-tune it for that
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location. Make this adjustment only as necessary.
For example:
• If the system performance is “thin” or lacks bass, turn the BASS control (shown above)
clockwise to increase the low-frequency output of the module.
• If the audio is “boomy” or overemphasizes bass, turn the knob counter-clockwise
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to reduce the low-frequency output of the module.
The setting made at the factory is meant for use in the most common room arrangements.
Adjusting the LFE level
The LFE level control (shown above) is for use only with receivers that provide an LFE/SUB-
WOOFER channel.
By turning the knob, you can adjust the relative level of the low-frequency effects from movie
soundtracks. Use it to match the volume level of the LFE channel with volume levels of your
other speaker channels.
You can check all levels by using the “test tones” feature on your digital surround sound
receiver. For details on using this feature, refer to the owner’s guide provided with your
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surround receiver.