2008 Volvo C70 Owner's Manual - Page 214

When listening to FM radio stations, Dolby Surround Pro Logic II functions best in areas with strong reception. If reception is weak, selecting 2 or 3-channel stereo may provide better sound quality. The Dolby symbol will be appear in the display when Dolby Pro Logic II is activated. There are three alternative settings: Pro Logic II 3-channel Off (normal 2-channel stereo) 238 10 Audio Audio functions Activating/deactivating Surround sound 1. Press MENU followed by ENTER . 2. Select AUDIO SETTINGS in the menu and press ENTER . 3. Select Surround FM/AM/CD/AUX and press ENTER . 4. Select PRO LOGIC II, 3-channel stereo or OFF and press ENTER . Equalizer Front/Rear This function is used to fine-tune the sound level for different frequencies separately. NOTE This function is only available on certain sound systems. To adjust the equalizer settings: 1. Press MENU followed by ENTER . 2. Select AUDIO SETTINGS in the menu and press ENTER . 3. Select EQUALIZER FRONT/REAR and press ENTER . The column in the display indicates the sound level for the current frequency. 1. Adjust the level with the TUNING dial (4), or use the Up/Down arrows. Additional frequencies can be selected with the Right/Left arrows. 2. Save the settings by pressing ENTER or exit without saving by pressing EXIT . Automatic sound control The audio system's volume is adjusted automatically according to the speed of the vehicle. There are three settings available, which determine the level of volume compensation: LOW MEDIUM1 HIGH