Rock, 1 press menu, 2 select settings – Rio Audio Cali User Manual
Page 36: 3 press riostick, 4 select equalizer, 5 press riostick, 6 select rock, Jazz, 6 select jazz, Rio cali

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Rio Cali
Rock
Select the Rock equalizer option to change the sound of tracks according to the Rock preset settings.
1 Press MENU.
2 Select Settings.
3 Press RIOSTICK
4 Select Equalizer.
5 Press RIOSTICK.
6 Select Rock.
7 Press RIOSTICK to set the Rock equalizer option and return to Player mode.
Jazz
Select the Jazz equalizer option to change the sound of tracks according to the Jazz preset settings.
1 Press MENU.
2 Select Settings.
3 Press RIOSTICK
4 Select Equalizer.
5 Press RIOSTICK.
6 Select Jazz.
7 Press RIOSTICK to set the Jazz equalizer option and return to Player mode.