1999 Subaru Impreza Owner's Manual - Page 148

J Power switch and volume control (ON/VOL) Volume control When the volume level is set at the level 18: Power ON/OFF HS0086 HS0087 The same knob is used for both power (on/off) and volume control. The radio is turned on and off by pushing the knob and the volume is controlled by turning the knob. The volume control has total of 34 volume levels (V: 0 for minimum, V: 33 for maximum). J Tone and balance control (TONE/BAL) The volume control knob normally function as volume control. This knob become the controls for Bass, Treble, Fader or Balance when you select the relevant tone and balance control mode. The "T/B" (Tone and balance) button is used for selecting the following control modes: - Bass (low note) control - Treble (high note) control - Fader control (Volume balance control between front and rear speakers) - Balance control (Volume balance control between right and left speakers) To change control modes: Each pushing the "T/B" button changes control modes in the following sequence starting from volume control mode. (When the radio is powered on, control mode is in the volume control.) 5-4