Blue Circle Audio

About Blue Circle Audio

Blue Circle Audio was a boutique Canadian high-end audio manufacturer founded and led by designer Gilbert Yeung. Renowned for its innovative and sometimes unconventional amplifier and preamplifier designs, the brand blended technical innovation with a personalized, often idiosyncratic aesthetic—think handcrafted wooden knobs and unique casework. Blue Circle continually pushed the boundaries between tube and solid-state technology, offering both hybrid and class-D amplifiers known for their musicality and sonic clarity. The company operated out of Innerkip, Ontario, Canada, and earned critical acclaim for its products' transparency and unique sonic signature. Blue Circle Audio ceased operations in 2019.