Pass Labs make some of the finest HiFi audio electronics in the industry. Continually on the "Reccomended Components" lists of Sterophile and The Absolute Sound you really need to hear the beautiful music making magic that PASS Labs products bring to any HiFi system.
Pass Labs is a high-end-audio company based in Auburn, California, United States founded by Nelson Pass, a well-known figure in the high end audio community.
Pass founded, and worked at, audio company Threshold, where he developed the Stasis series of amplifiers. These designs were later licensed to Nakamichi
Today Pass Labs makes amplifiers and, preamplifiers. Pass Labs is also a supporter of the DIY audio community and maintains an Internet presence for this purpose.