Simple Explanation

The deep, punchy part of bass that you can hear and feel—usually between 45 Hz and 120 Hz.

Concise Technical Definition

A frequency range in audio from approximately 45 Hz to 120 Hz, just above sub-bass, providing the foundational weight and impact of music.

Layman-Friendly Analogy

Like the thump of a kick drum or the deep rumble of a bass guitar—it moves the air and fills the room.

Industry Usage Summary

Handled by larger woofers or subwoofers in speaker systems; important for music genres with rhythmic bass content. Often overlaps with the crossover region between subwoofers and main speakers.

Engineering Shortcut

45 Hz–120 Hz; punchy bass above sub-bass; handled by woofers.

Full Technical Explanation

Low-bass refers to audio frequencies typically ranging from 45 Hz to 120 Hz, sitting just above the sub-bass region (< 45 Hz). This range carries much of the perceived punch and weight in music and effects—kick drums, bass guitars, and cinematic rumble are often found here. It’s crucial for musical rhythm and emotional impact. In speaker systems, this range is reproduced by woofers or shared between subwoofers and main speakers, depending on crossover settings. Accurate reproduction requires proper driver size, cabinet design, and room tuning to avoid boominess or cancellation. Proper integration of low-bass helps maintain clarity, dynamic energy, and realism in playback.