Subaru 1998 Impreza Owner's Manual page 134

J Power switch and volume control (ON/VOL)
Volume control
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 con-
trolled 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
Power ON/OFF
HS0086
When the volume level is set
at the level 18:
HS0087