A person with an interest in high fidelity music and/or sound reproduction and its associated technology.
However, almost every serious audiophile or electronics hobbyist already knows that bar/graph displays are close to useless for the application they are most commonly used for, which is the attempt to indicate output power levels of audio power amplifiers.2001, G. Randy Slone, The Audiophile's Project Sourcebook: 120 High-Performance Audio Electronics Projects, McGraw-Hill, →ISBN, page 246:
Relating to high fidelity sound reproduction or an interest in it.
Fortunately, I abandoned the cheap record player and moved into more audiophile equipment once I got into high school.2012, Michael R. Miller, The Ultimate Digital Music Guide: The Best Way to Store, Organize, and Play Digital Music, Que Publishing, →ISBN, page 307: