Max Volume:

Bass Boost is an audio processing feature that artificially increases the volume and intensity of low-frequency sounds, typically ranging between 30 Hz and 120 Hz. Found widely on car amplifiers, headphones, software, and home theaters, it is designed to give audio a “punchier,” “boomy,” or harder-hitting feel.

However, bass boost is often misunderstood and can easily degrade your sound quality or damage equipment if used incorrectly. How Bass Boost Works