Soulnote is a high-end home audio brand by CSR, Inc. headquartered in Kanagawa, Japan. CSR was founded in 2004 by the former members of Marantz Japan. Hideki Kato is the Chief Sound Manager since 2016. At Soulnote, only listening dominates the determination and improvement of circuit, selection of parts and mechanical construction. This approach is a kind of antithesis against the supremacy of static performance.