Hello LMcc! With the sound mode set to standard, press and hold the SOUND CONTROL button for about 5 seconds to adjust the sound for each frequency band. 150Hz, 300Hz, 600Hz, 1.2kHz, 2.5kHz, 5kHz, and 10kHz are selectable using the Left/Right buttons, and each can be adjusted to a setting between -6 to +6 using the Up/Down buttons. ~ Samsung Solutions