WELCOME TO PASS LABORATORIES


Founded in 1991 by legendary audio designer Nelson Pass, Pass Laboratories, Inc. markets its unique amplifiers, preamplifiers and speakers throughout the world. The company has been based in Foresthill, California, since its beginning, and is widely regarded as one of the most innovative audio brands in the world.

Our critically acclaimed Aleph, X and XA-Series products have won numerous awards, and Founder Nelson Pass holds numerous audio patents. His achievements include developing the first dynamically biased Class A amplifier circuit, developing a fully cascode audio power amplifier, and developing the Stasis amplifier in 1977.

He helped popularize solid-state, single-ended Class A power amplifiers, and developed the very successful Aleph series of products, and the Super-Symmetry™ circuit, which achieves exceptionally low distortion and noise levels. The company is now poised to introduce a new generation of amplifiers and other high-performance audio products.

 
LATEST NEWS
 

  • XA200.5, XA160.5 are now shipping.

  • INT-150 continues to receive rave reviews and awards.

  • XP-10 preamp is expected to ship by March 2008.

  • XP-20 preamp should follow in another month or two.

 
Other Pass websites:

First Watt is a "kitchen-table" effort by Nelson Pass. First Watt builds very simple high quality, low power audio amplifiers intended for use with sensitive loudspeaker drivers.

These amplifiers are hand-built by Pass and are available in very limited quantities. Each design is a different exploration into high quality at low power. At the end of the sales cycle of new product, the schematics and technical details of each design will be posted for the benefit of the "DIY" community. ...................continue


PassDIY is a website dedicated to the audio enthusiast who likes to build and learn.

Nelson Pass has supported the DIY community ever since he published the Class A amplifier project in Audio Magazine way back in 1977.

This commitment continues today with the Zen series of amplifiers, the Pearl phonostage and lots of articles .......continue
 

 
© 2008, Pass Laboratories, PO 219, Foresthill, CA 95631, voice: 530.367.3690