The MANLEY brand has been around since the late 1980's. Manley's first commercially available products were upper echelon high-fidelity vacuum tube amplifiers and preamplifiers constructed at the old Vacuum Tube Logic of America factory (VTL). In 1993, Manley Laboratories, Inc. became a separate entity apart from VTL. The new Manley Labs factory houses the Manley HiFi and Pro Studio manufacturing as well as the Langevin production lines, their newly acquired machine shop, and printed circuit board facilities. Since their modest beginnings, Manley has produced many award winning tube audio products still exceptional today as when they were first introduced— testament to their design and reliability.