Simple Explanation

A speaker or subwoofer with a built-in amplifier—often with an active crossover filter inside as well.

Concise Technical Definition

A loudspeaker system that includes a built-in power amplifier and usually an active crossover filter to divide frequencies before amplification. Requires external power.

Layman-Friendly Analogy

Like a speaker with its own engine—it doesn’t need help from a separate amp to work. Just plug it in and go.

Industry Usage Summary

Common in studio monitors, PA systems, and powered subwoofers, active speakers simplify setup by integrating amplification and signal processing directly into the speaker cabinet. This ensures tighter control over sound and easier plug-and-play operation.

Engineering Shortcut

Active speaker = speaker + built-in amp + crossover (often).

Full Technical Explanation

An active speaker is a self-powered loudspeaker that contains an internal amplifier, meaning it doesn’t require an external amplifier to operate. Many active speakers also include active crossover circuits that divide the audio signal into frequency bands before amplification—allowing each driver (e.g., woofer, tweeter) to receive a band-limited signal. This approach improves efficiency, control, and overall sound quality. Active speaker systems are widely used in studio, live sound, and consumer applications for their convenience and performance consistency.