2008 Subaru Impreza Owner's Manual - Page 187

Audio 5-9 & Adjustable level of each mode Mode Volume Volume control AUX volume control* Tone and balance Bass control Midrange control Treble control Balance Fader Other settings SVC BEEP CS Auto (Type B audio) *Only when an AUX audio product is connected. Range of levels (displayed) 0 to 40 0 to 40 −8 to +8 −8 to +8 −8 to +8 L9 to R9 R9 to F9 OFF to 2 OFF to ON OFF to ON Initial setting 15 15 0 0 0 0 0 OFF ON OFF Turn counterclockwise For less volume For less volume For less bass sound For less midrange sound For less treble sound Right channel attenuated Front attenuated OFF OFF Turn clockwise For more volume For more volume For more bass sound For more midrange sound For more treble sound Left channel attenuated Rear attenuated ON ON For less auto volume change For more auto volume change