Bose LS28IIIBLK Operating Guide - Page 30

Changing System Settings Menu Item Settings What each setting does Mono Decoding: On Off Center Channel: -8 to 8 Audio Status: Custom On Equalization Off - - Automatically engages Bose® Videostage® 5 mono decoding circuitry when a Dolby Digital bitstream indicates that it contains a mono program. This feature can process a one-channel program into five-speaker sound, directing the signals so that dialogue remains locked on-screen, while music and ambient effects fill the room. You experience a surround sensation, providing extra enjoyment when you watch older (that is, pre-stereo) movies. This feature can be used for mono TV shows and movies when you select TV, VCR, AUX, or TAPE. Mono decoding is off. Focuses or softens the presentation of center-channel sound. In 2-speaker mode "--" appears instead of a numeric value. Displays system audio information. See the example in Figure 12. Makes audio adjustments based on the custom equalization process performed when you played Disc 2. These audio adjustments compensate for your room furnishings, speaker placement, and listening locations you selected during the process. Erases the custom equalization adjustments and reverts to the settings that come with the system. Note: After choosing Off, press Erase on the media center within five seconds. This erasing is not reversible. To restore the custom equalization adjustments, you must run and complete the process on Disc 2 again. You have not performed the custom equalization process on Disc 2. Treble Compensation: Bass Compensation: -14 to +14 Decreases (-) or increases (+) the treble sound. After custom equalization: -9 to +6 -14 to +14 After custom equalization: -9 to +6 Rooms with few sound-absorbing furnishings, especially those with bare floors and walls, may sound overly shrill or "bright." Decreasing the treble sound can be useful. Conversely, rooms with a lot of sound-absorbing furnishings, such as upholstered furniture, wall-to-wall carpet, or heavy drapes, can sound "dull" and may benefit by increasing the treble sound. Different source materials, such as DVDs, CDs or radio stations, may also vary in the amount of treble they have. You can decrease the treble sound by lowering this setting to a negative value from -1 to -14. To increase the treble, raise this setting to a positive value from +1 to +14. Decreases (-) or increases (+) the bass sound. Placement of the Acoustimass® module affects the amount of bass you hear. Placing the module closer to the corner of the room will increase the bass. Moving the module away from the corner will decrease the bass. Different source materials, such as DVDs, CDs or radio stations, may also vary in the amount of bass they have. You can decrease the bass sound by lowering this setting to a negative value from -1 to -14. To increase the bass, raise this setting to a positive value from +1 to +14. Note: Completion of the custom equalization process compensates for your room acoustics. Subsequently, the treble and bass controls operate only over the range from -9 to +6 and should only be needed for occasional adjustments due to source material variations. 30 AM259776_02_V.pdf • April 23, 2002