Simple Explanation

A type of crossover filter used in loudspeakers that maintains a smooth and flat frequency response before the cutoff point.

Concise Technical Definition

A crossover alignment that uses Butterworth filter characteristics, providing a maximally flat amplitude response in the passband with no ripple.

Layman-Friendly Analogy

Like a smooth dimmer that gradually reduces light without any flickering — it divides audio between drivers without harsh drops or overlaps.

Industry Usage Summary

Commonly used in loudspeaker crossover networks due to its predictable, smooth performance; ideal when minimal interaction between drivers is desired.

Engineering Shortcut

Butterworth crossover = smooth, ripple-free audio division between speaker drivers.

Full Technical Explanation

Butterworth crossovers are based on Butterworth filter design principles, offering a flat frequency response in the passband. They are often used in 2-way or 3-way speaker systems to ensure consistent sound output without added coloration.