Pass Laboratories, Inc., founded in 1991 by Nelson Pass operating out of his shop at home, developed prototypes of a single-ended Class A, mono-block amplifier design which when introduced to the audio world was acclaimed as the “Amplifier of the Decade”. As one of the most prestigious names in audio, Pass Labs philosophy is “to build simple amplifiers that are distortion free and that sound as good as possible” with attention to design elements like output current and bias that can affect performance and is why Pass Labs amplifiers are superior to most others on the market. In 1998 the company released the X1000, the first amplifier using the patented SuperSymmetric topology – a ground breaking design that has formed the amplifier products from Pass Labs to the present day. In 2017, Nelson Pass and Wayne Colburn were deservedly awarded a “Lifetime Achievement Award” which recognized their superior and sustained contributions to fine audio. Among Pass Labs array of exceptional audio components is the INT-60 integrated amplifier, designed and built to last a lifetime, with exquisite resolution and dynamics that bring every detail and musical passage to life. If you are interested in “trading up” to a life-changing Pass Labs audio component, you can trade-in one or more electronic components toward the purchase of Pass Labs audio system by filling out Overture's Trade-In Form.