Using Your System; For Realistic Home Theater Sound; Adjusting The Lfe Level; Adjusting The Bass/Room Compensation Level - Bose Acoustimass 10 Series III Owner's Manual

For realistic home theater sound

LFE
BASS

Setting your digital surround sound receiver

CAUTION: The Acoustimass
matic protection circuit, which guards against most kinds of damage from electrical stress or
overload. This circuit activates at high volume levels to reduce output, causing a slight
decrease in volume. This is normal operation and indicates that power input may be exceed-
ing safe levels. Sustained listening at these levels is not recommended.

Adjusting the LFE level

The LFE level control on your powered Acoustimass module increases or decreases the rela-
tive level of low frequency effects on movie soundtracks. Use it to regulate the presence of
these underlying deep bass sounds. Use the "test tones" feature in your digital surround
sound receiver to match the volume levels for each of the cube speakers. Then use the LFE
control on the Acoustimass module to match the volume of the LFE channel to the cube
speaker channels.

Adjusting the bass/room compensation level

This feature will allow you to fine-tune your system after you have placed the Acoustimass
module in your selected location. If the room sounds "thin" or lacks bass, turn the BASS con-
trol in a clockwise direction to increase the bass level of the module. If the room sounds
"boomy" or has too much bass, turn the knob in a counter-clockwise rotation to reduce the
bass level of the module. The factory or detent setting is appropriate for a majority of listening
situations.
Your Acoustimass 6 or Acoustimass 10 speakers are compatible with the output from digital
surround receivers. Integrated Signal Processing assures full bass reproduction for all chan-
nels regardless of receiver settings. However, the following table suggests a set of recom-
mended receiver settings. The cube speaker arrays should be set to LARGE in the receiver's
digital display menu. The LFE, or subwoofer, is set to ON. If applicable, the crossover value
should be set to the lowest number possible, typically 80 Hz.
Speaker Receiver setting
Front left and right LARGE
Front center LARGE
Rear left and right LARGE
LFE/Subwoofer ON
®
6 and Acoustimass 10 speaker systems incorporate an auto-
(low frequency effects)

Using your system

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