HIGH FIDELITY
noun Electronics.
sound reproduction over the full range of audible frequencies with very little distortion of the original signal.
Ideally, high-fidelity equipment has inaudible noise and distortion, and a flat (neutral, uncolored) frequency response within the human hearing range.
In radio, sound recording, etc., an approximately exact reproduction of sound achieved by low distortion and a wide range of reproduced frequencies, from approximately 20 to 20,000 hertz
High fidelity is not "my fidelity " it is not whatever I want it to be. I might not like sound reproduced as accurate and distortion free as possible but that’s what it means. The equipment that can reproduce the sound it is given with as little distorion or inaudible distortion comes the closest to being High Fidelity equipment no matter the price. High Fidelity Audio is dying even though we have equipment that can reproduce music more accurate than ever before we choose to be subjectivist and declare whatever we prefer HiFi.