Piega SA is a prestigious Swiss loudspeaker manufacturer founded in 1986 by Leo Greiner, Kurt Scheuch, and Christian Schmid in Horgen, Zürich, Switzerland. The company name derives from the Italian word 'la piega' ('the fold'), referencing their pioneering ribbon tweeter technology that features ultra-thin aluminum foil folded into pleated diaphragms weighing only 0.007 grams. What began as a garage business has evolved into Switzerland's leading loudspeaker manufacturer, remaining a family enterprise now managed by second-generation leaders Alexander and Manuel Greiner since 2018, working alongside Thomas Müller. Located on the shores of Lake Zurich, Piega operates two handcraft workshops where skilled artisans spend eight hours assembling each coaxial driver entirely by hand without conveyor belts. The company pioneered several audio innovations, including the world's first coaxial ribbon module combining tweeter and midrange drivers, and introducing aluminum cabinets in 1989. Piega's current product lineup ranges from the ACE series to their flagship $195,000 Master Line Source system, all featuring their proprietary ribbon technology that delivers exceptional frequency response and minimal distortion. Their commitment to Swiss precision, innovative engineering, and handcrafted excellence has established Piega as a globally respected name in high-end audio reproduction.