Jensen VX7021 Operation Manual page 17

Reset
Touch the Reset icon to reset the 10 equalizer band frequencies to the mid point.
Loudness
Touch the Loudness icon to turn the loudness option On / Off. The loudness
option automatically alters the frequency response curve of the music to make it
more natural when played at a lower volume level.
Exiting the Equalizer
To exit the Equalizer menu touch the SRC icon to return to the current source.
Fader-Balance
Balance - Touch the FAD-BAL icon on the left side of the equalizer screen to
display the balance/fader screen.
Fade-Balance Adjustment Screen
Balance - This feature is used to balance the audio output levels between the
left and right side of the vehicle. Touch the  or  icons to change the balance
control settings -20 (Left) to +20 (Right). The setting can also be changed by
touching screen within the grid to move the sphere.
Fader - This feature is used to fade the audio output levels between the front and
rear of the vehicle. Touch the  or  icons to change the fade control settings -20
(Rear) to +20 (Front). The setting can also be changed by touching screen within
the grid to move the sphere.
Sub (Subwoofer) - This feature is used to reduce or increase the subwoofer sound
level. Touch the slide bar  or  icons to adjust the settings.
Exiting the Balance-Fader
To exit the balance-fader touch the SRC icon on the top left corner of the screen.