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.
There is a huge amount of technical information on the Pass Labs X.5 series amplifiers and the XA.5 series amplifiers on the Pass Laboratories web site (passlabs.com). These new Pass designs, as people in the industry will attest, are some of the best sounding solid state amplifiers in existence. Reviewers have said "any listener would regard them among the best sounding amps they've ever heard" (X600.5 /Ed Momkus/Dagogo) "Some of the Best Equipment around" (XA160 and X600.5 Cordesman/TAS)
The INT-150 is Pass Labs' first integrated amplifier. Based on the X150.5 Stereo Amplifier, the INT-150 embodies the design technology and refinements, including patented Super-Symmetry circuit, of he X150.5 and Pass Labs' larger X.5 Series amplifiers.
Rated at 150 wpc into 8 ohms, and 300 wpc into 4 ohms, it moves easily from black background to explosive transients, then back again, adding realism and authenticity to recorded materials. Smooth and transparent, the INT-150 provides clean, expansive sound at an affordable price.
June 2009 Soundstage Review
$7150
For more information on the entire line of Pass Labatories products, please access this link.
