Simple Explanation

The very low bass frequencies, typically ranging from 1 Hz to 80 Hz, often produced by large subwoofers.

Concise Technical Definition

Sub-bass refers to the frequency range below typical bass, generally from 1 Hz to 80 Hz, that is produced by subwoofers. These frequencies have longer wavelengths, requiring larger speaker cones for efficient reproduction. Sub-bass is characterized by deep, powerful low-end sounds that are often felt physically rather than heard, especially at the lower end of the spectrum. Subwoofers with larger cones, such as those measuring 10", 12", 15", or even up to 80", are designed to handle and reproduce these sub-bass frequencies with high efficiency.

Layman-Friendly Analogy

Sub-bass is like the deep rumble you feel during a thunderstorm or a car chase scene in a movie—it's so low you might not hear it clearly, but you can definitely feel it in your chest. This is the kind of bass that subwoofers are made to produce, adding that powerful "thump" to music or sound effects.

Industry Usage Summary

Sub-bass is crucial in audio systems that aim to deliver a full range of sound, particularly in home theater setups, music production, and sound reinforcement. Subwoofers designed to reproduce sub-bass frequencies are integral for delivering deep, immersive sound, especially in genres like electronic music, hip-hop, and movie soundtracks where low-end frequencies are prominent. Audio engineers and enthusiasts use subwoofers with large drivers (e.g., 15", 18", 21") to achieve sub-bass performance that extends to frequencies as low as 1 Hz, providing a more complete listening experience.

Engineering Shortcut

Very low-frequency bass, typically from 1 Hz to 80 Hz, reproduced by large subwoofers.

Full Technical Explanation

Sub-bass is the portion of the frequency spectrum below the normal bass range, usually defined as the frequencies from 1 Hz to 80 Hz. These frequencies, characterized by their long wavelengths, are typically produced by large subwoofers, which are designed to handle the power and efficiency required to reproduce them. Sub-bass frequencies are often felt rather than heard, especially in the lower end of the range. Larger subwoofers with drivers ranging from 10" to 80" are capable of reproducing these deep frequencies with high efficiency, ensuring that the full spectrum of bass is present in an audio system. Sub-bass is particularly important in applications such as movie soundtracks, electronic music, and other media that rely on intense, low-end frequencies to provide a complete and immersive experience.