Subaru A3100BE Owner's Manual page 175

To change tone and balance control
modes
Each brief press of the "TONE BAL" but-
ton (8) changes control modes in the fol-
lowing sequence starting from volume
control mode. (When the radio is first
turned on, the control mode is in the vol-
ume control.)
Volume Bass Midrange
(VOLUME) (BASS) (MIDDLE)
Balance Fader
(BALANCE) (FADER) (TREBLE)
The "TONE BAL" button is used for select-
ing the following control modes:
Treble
5-5
Audio
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