CircleLabs is a Polish manufacturer of high-end professional audio equipment founded by designer Krzysztof Wilczynski. The company, headquartered in Cracow, Poland, represents 25 years of passion and research into perfect amplification technology. Originally active in designing specialized equipment for scientific research in microbiology with apparatus used in leading research centers worldwide, CircleLabs transitioned to audio equipment in 2019. Their proprietary "Circle Power" technology combines tube and transistor technologies, which attracted attention from leading Hi-End equipment manufacturers and resulted in the development of reference monoblocks. The company's core philosophy centers on "Beauty in sound," creating products that capture the beauty of music while maintaining elegant and refined form. CircleLabs specializes in integrated amplifiers, preamplifiers, power amplifiers, and phono preamplifiers, targeting demanding audiophiles with their premium audio solutions.