2001 Subaru Outback Owner's Manual - Page 206

This dial is used for bass/middle/treble controls when the "AUDIO" button 8 is in the depressed position. It is also used for fader/balance controls when the "FAD/BAL" button 6 is in the depressed position. Display Control mode HB5036BA Turn counterclockwise BAS MId Bass control Middle note control Treble control Fader control For less bass For less middle note Turn clockwise For more bass For more middle note TRE FAd For less treble To increase rear speaker volume and decrease front speaker volume To increase left speaker volume and decrease right speaker volume For less volume For more treble To increase front speaker volume and decrease rear speaker volume To increase right speaker volume and decrease left speaker volume For more volume BAL Balance control VOL Volume control n Tone control The volume control dial 7 normally function as volume control. The dial become a control for Bass, Middle note or Treble when you select the appropriate tone control mode. Choose desired level for each mode by turning the volume control dial. The control function returns to volume control mode after about 5 seconds. To change control modes: Each brief press of the "AUDIO" button 8 changes control modes in the following sequence starting from bass control mode. (When the radio is first turned on, the control mode is in the volume control.) 5-20