Bose Acoustimass 6 Series III Owner's guide - Page 13

Using your system For realistic home theater sound CAUTION: The Acoustimass® 6 and Acoustimass 10 speaker systems incorporate an automatic 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 exceeding safe levels. Sustained listening at these levels is not recommended. Adjusting the LFE level (low frequency effects) 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 LFE sound receiver to match the volume levels for each of the cube speakers. Then use the LFE BASS control on the Acoustimass module to match the volume of the LFE channel to the cube speaker channels. LFE LFE BASS 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 control 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. Setting your digital surround sound receiver 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 channels regardless of receiver settings. However, the following table suggests a set of recommended 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 Front left and right Front center Rear left and right LFE/Subwoofer Receiver setting LARGE LARGE LARGE ON 13 264887_00 _V.pdf • August 13, 2002