High fidelity

High fidelity (often shortened to Hi-Fi or HiFi) is the high-quality reproduction of sound.[1] It is important to audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion, and a flat (neutral, uncolored) frequency response within the human hearing range.[2]

Hi-fi speakers are a key component of quality audio reproduction.

High fidelity contrasts with the lower-quality sound produced by inexpensive audio equipment, AM radio, or the inferior quality of sound reproduction that can be heard in recordings made until the late 1940s. In lo-fi music, such defects are themselves aspects of the music.


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