It's best not to use an equalizer and don't add a lot of bass yourself. Too much bass will eat up the high notes, and the sound will be turbid and unpleasant.
If there is an equalizer, the button should be in the middle position. Do not raise or lower the sound of each frequency.
Many fever amplifiers are not tuned, that is, they listen to music directly from the sound source, that is, enjoy the original music-that is, high-fidelity music.