Speakers that don't require a separate subwoofer and produce all sound from a single unit are commonly referred to as "full-range speakers" or "two-way speakers." These speakers are designed to reproduce a wide frequency range, typically covering the low, mid, and high frequencies within a single enclosure.
The term "two-way" refers to the speaker's internal configuration, which typically consists of two drivers: a woofer or midrange driver for handling lower frequencies and a tweeter for reproducing higher frequencies. The combination of these two drivers allows the speaker to cover a broader range of frequencies compared to a single-driver speaker.
Full-range speakers are often used in various audio systems, such as computer speakers, bookshelf speakers, and multimedia speakers. They provide a convenient and compact solution for audio reproduction, eliminating the need for an additional subwoofer while still delivering a balanced sound output across different frequency ranges.