Bose Acoustimass 10 Owner's guide - Page 11

Using Your Acoustimass®-10 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 You must set the volume levels for the front, center, and surround speakers at your receiver. For use in video applications, be sure the SURROUND SOUND center mode setting of your receiver is on NORMAL (Figure 10). The center channel and surround (rear) speakers have a wider response range and therefore play at a slightly lower volume. The signal levels for these speakers may need to be increased. You can adjust these levels at the receiver or with the remote control. Your receiver may have a test tone to help you set volume levels. If it does, follow these steps: • Press test tone ON at the remote. • Set the volume for the speakers in the following order: Left, Center, Right, Surround. • Balance the pink noise tone for evenness among all individual speakers. Instructions for this process vary, depending on the brand and model of receiver you are using. Follow your receiver owner's guide for testing and adjusting the balance of each speaker. 12 13 14 15 16 17 18 11 19 10 20 9 21 8 22 7 23 6 24 5 25 4 26 3 27 2 1 0 28 29 30 Figure 10 A Dolby Pro-Logic receiver set for NORMAL surround sound Bass and treble adjustments 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. Set your Dolby AC-3 receiver correctly Your Acoustimass-10 speakers are compatible with the output from Dolby AC-3 receivers. Take special care to set the channel output according to the specifications listed in the chart below. The cube speakers are full-range loudspeakers and must be set up as LARGE speakers on the AC-3 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 200Hz. Speaker Setting at receiver Left and Right Front Large Center Small Left and Right Surround Large Subwoofer OFF (not used) LFE (low frequency effects ON Crossover frequency 200Hz AM183644_01_V.pdf December 20, 2001 11