Audio equalizers change the frequency response characteristics of an audio system. When you discuss audio equalizers, or "EQs," you might think of the types found in home theaters or car stereos. However, many modern audio players and devices have some form of built-in audio equalization.
PARAMETRIC EQ vs. GRAPHIC EQ: Differences + How and When to Use Them
The EQ can be as simple as a portable Bluetooth speaker with knobs to adjust bass and treble levels. Or it can be more complicated, like the graphic equalizers you find in some music apps.
The best audio equalizers offer greater, more precise control over tone and frequency, going beyond just bass and treble. They can boost or cut the decibel output of specific frequency bands.
Some home stereo receivers or amplifiers offer built-in audio equalizer controls with varying degrees of control, including individual sliders or knobs. They may also have digital displays that are controlled by a remote control.
