JVC KW-NT3 Manuel D'instructions page 63

Sound equalization
You can select a preset sound mode suitable to the music genre.
You can also customize the sound mode.
1
2
3
Select a sound mode.
Storing your own adjustments
You can store your adjustments into <User1>,
<User2>, and <User3>.
1
Repeat steps 1 and 2, then in step 3 on the
left...
2
Select the frequency (1), then adjust the
frequency level (2).
Also adjusts the frequency level
3
Store the adjustment.
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