Founded in 1997 by Ken Ishiguro, Acoustic Revive is a Japanese manufacturer of specialized audio cables and accessories headquartered in Isesaki-shi, approximately 60 miles northwest of Tokyo. Ishiguro, recognized as a deeply creative and prolific designer, addresses various vulnerabilities in hi-fi systems through innovative products like the legendary RR series Schumann Wave Generators. The company's flagship RR-777 Ultra Low Frequency Schumann Wave Generator operates at 7.83Hz frequency and represents over a decade of evolution from the original RR7 through RR77, RR777, to the current RR888 models. These devices generate subsonic frequencies designed to affect listener perception or room acoustics, requiring placement at least 1.5 meters high and separate electrical outlets from audio systems. Acoustic Revive's product line includes high-quality audio cables utilizing rare minerals found exclusively in Japan, power conditioners, and various acoustic accessories. Represented in the United States by Lotus Group USA, the company has built a reputation among audiophiles for products that claim to enhance system performance through addressing electromagnetic and acoustic interference, establishing Ken Ishiguro as a respected figure in high-end audio accessory design.