Information & ideas worth sharing


by: true-apex-admin

In Leaving Class A, an article by Nelson Pass about Pass Lab’s design philosophy, he asks readers to imagine that “two transistors are runners in a relay race and the [electrical]...

Sep 1st, 2016
by: true-apex-admin

Our XP-30 3-Chassis Reference Preamp premiered to an enthusiastic reception at last year’s CES. Compared with earlier preamps, the XP-30 generates less noise, crosstalk, and distortion as...

Feb 2nd, 2016

Marvel Comics has the X-Men, Pass Labs has the Xs Amps, our own superheroes in the expanding universe of components for audiophiles. And just as the “X” in X-men stands for extra power...

Feb 2nd, 2016
by: true-apex-admin

With January here, the staff at Pass Labs is finishing its latest CES exhibit. This year, the spotlight will be on our new Xs Preamplifier. Three years in development, the Xs Preamp raises to the...

Dec 17th, 2015
by: true-apex-admin

International CES 2014 - January 7 - 10th Las Vegas, Nevada.
Pass will be set up at the Venetian Hotel, Room 209, on the 34th Floor (34-209).
We are sharing the  Floor with: ...

Dec 28th, 2013

Pass Laboratories celebrates its twenty-second year by presenting the best amplifiers we have ever made.   If you have heard the qualities of the highly acclaimed Xs series of amplifiers...

Dec 25th, 2013
by: Nelson Pass

There are people who do not know that Wayne Colburn has designed the Pass Labs preamplifier products for the last 20 years.  Wayne's modesty has tended to keep him out of the spotlight,...

Dec 22nd, 2013
by: Kent English

The exercise of phono-cartridge loading is a necessary and inescapable adjunct to fully appreciating the LP experience.

Please understand, the loading of a phono cartridge and particularly...

Dec 14th, 2013

Is Class A amplification superior and preferred to A/B?

The answers to these two questions are a definitive

Jul 31st, 2013
by: true-apex-admin

Pass Labs found themselves on the 34th floor of “The Venetian Hotel” in Las Vegas, with Great Company like Tad, Boulder, Venture and Kimber . Unveiling our Xs 300 and Xs 150 mono-block...

Jul 1st, 2013
by: true-apex-admin

Production on our Xs preamps is in full swing – we have taken our time to make sure that these preamps live up to Wayne Colburn’s expectations, along with Pass Standards.

Apr 5th, 2013
by: true-apex-admin

Pass Labs was invited to show at the premier CAS 2013, in San Francisco, CA., by none other than Mr. Constantine Soo, Publisher of When asked to add a comment to our Newsletter, this...

Apr 1st, 2013

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