Simple Explanation

A comparison testing methodology between two components. Usually a side-by-side comparison of two speakers or amplifiers. See also: ABX Testing.

Concise Technical Definition

A comparison testing methodology where a first test (A) is compared against a second test (B), often used in audio to evaluate differences in sound between two devices or conditions.

Layman-Friendly Analogy

Like trying two brands of coffee back-to-back to see which one you like better—but with sound equipment instead of drinks.

Industry Usage Summary

Commonly used by audiophiles, engineers, and reviewers to evaluate differences between two audio components. A/B testing helps isolate preferences or performance differences by switching between A and B under consistent conditions.

Engineering Shortcut

A/B = direct back-to-back component comparison; manual or switched.

Full Technical Explanation

An A/B test is a method of comparing two audio components—such as amplifiers, speakers, or cables—by switching between them under identical conditions to detect audible differences. It may be done casually or with structured switching to minimize bias. A/B tests are sometimes confused with ABX tests, which add a third “X” trial that is unknown to the listener and used for blind comparison. A/B testing, while useful, may be subject to psychological bias unless conducted blind or double-blind. It remains a popular tool in product evaluation, both subjective and objective.