Updated February 10, 2017 Open iTunes on your computer. Click the “Music” tab in the iTunes left sidebar. Open the “Edit” menu at the top of the program interface. Click the “Select All” option. ITunes selects all the music in your library. Open the “File” menu at the top of the window. Select the “Get Info” option. A dialog box appears. Select the “Options” tab of the dialog box. The Options page opens. Click the drop-down arrow of the “Equalizer Preset” field. Select the “Bass Boost” option from the Equalizer Presets drop-down list. Click the “OK” button of the dialog to close the window and return to iTunes. Writer Bio