Simple Explanation

An unwanted dip or peak in sound when two speakers (like a woofer and tweeter) don’t blend perfectly.

Concise Technical Definition

The deviation in on-axis amplitude response caused by phase misalignment between drivers at the crossover frequency, resulting in an imperfect combined radiation pattern.

Layman-Friendly Analogy

Like two flashlights pointing slightly out of sync—the overlap gets dim or uneven.

Industry Usage Summary

Occurs in speaker designs with multiple drivers; poor crossover alignment or physical spacing can cause destructive interference, leading to irregular frequency response at certain listening angles.

Engineering Shortcut

On-axis amplitude dip/peak at crossover due to phase error.

Full Technical Explanation

Lobing error refers to anomalies in the on-axis sound output of a loudspeaker system caused by phase misalignment between two or more drivers—typically around the crossover frequency. When drivers are not properly aligned in time (acoustically or electrically), their sound waves combine imperfectly, creating lobes—areas of reinforcement and cancellation. This results in non-uniform amplitude response, especially in the vertical axis, leading to "hot spots" or dips at various listening positions. The error can be minimized through proper driver spacing, acoustic alignment, crossover design, and phase correction, especially in multiway loudspeakers. It’s a critical factor in achieving smooth, consistent off-axis response and accurate imaging.