Sound Performance Lab (SPL) is a German brand that specializes in designing and manufacturing high-quality audio equipment. The company was founded in 1984 by Hermann Gier, who was a recording engineer and music producer. Today, SPL produces a wide range of products including preamplifiers, compressors, equalizers, and monitoring controllers.

SPL's products are highly regarded for their exceptional sound quality, innovative design, and user-friendly features. The company uses high-quality components and employs advanced technologies in its manufacturing process to ensure that its products deliver excellent performance and reliability.