Esoteric Sound is an audio equipment company based in Wheaton, Illinois, specializing in turntables, equalizers, noise reduction gear, and accessories geared toward archivists, audio restorers, and collectors of vintage and 78 RPM recordings. Run by electronics manufacturer Mike Stosich, the company acquired the rights to the storied Rek-O-Kut turntable brand in the early 2000s and has since continued to manufacture transcription turntables under that name.

The Rek-O-Kut line includes belt-driven transcription turntables such as the Trovatore, Rondine 3, and Legacy, several of which support multiple playback speeds including 33-1/3, 45, and 78 RPM along with intermediate speeds used for transcribing early 20th-century recordings. Beyond turntables, Esoteric Sound supplies styli, cartridges, tonearms, preamps, audio editing software, cleaning products, and folk music CDs.

The company has a reputation within the archival and record-collecting community for a technical, engineering-focused approach to sound restoration and has supplied equipment to national archives and institutional audio preservation programs.

Esoteric Sound has 1 product cataloged on Equipboard, including Active & Passive Monitors.