List of products by brand Pass Labs

Pass Labs is a high end audio company based in Foresthill, California, USA founded by Nelson Pass, a well-known figure in the high end audio community.
Pass Labs is a high end audio company based in Foresthill, California, USA founded by Nelson Pass, a well-known figure in the high end audio community. In 2007 Pass Labs is applying the “.5” advances to the XA series of amplifiers, with the XA100.5, XA60.6, and XA30.5 shipping as of this writing. These revisions dramatically lower distortion and noise and also dramatically improved the performance of the amplifiers into low impedance loads.
Pass Labs Xs 150 Monoblock... Pass Labs Xs 150 Monoblock...
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Pass Labs Xs 150 Monoblock Power Amplifiers

$125,995

Like the Xs 300, this amplifier was developed through constant and thorough innovation. After years of SIT device experimentation, followed by deployment in Nelson\'s First Watt designs, circuit modification captured the unique tube-like sonic footprint of SITs from much higher-output MOSFET devices used in the Xs series. The result is unparalleled, fatigue-free listening enjoyment.

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Pass Labs Xs 300 Monoblock... Pass Labs Xs 300 Monoblock...
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Pass Labs Xs 300 Monoblock Power Amplifiers

$159,995
The Xs series monoblock power amplifiers represent the reference-quality, state-of-art amplifiers from Pass Laboratories. Through years of "spare no effort" endeavor, they represent the true pinnacle of music reproduction.
 
The Xs 300 delivers 300 watts, employs separate power supply and amplifier chassis\' for lower noise and utilizes higher-power constant-current source. Single-ended bias current not only lowers distortion, but facilitates better control of its harmonic structure, tweaked and optimized through endless listening tests for your musical pleasure.

Xs Series - Class A

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Pass Labs Xs Phono... Pass Labs Xs Phono...
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Pass Labs Xs Phono Preamplifier

$84,995

The Xs Phono preamplifier represents an all-out assault on the state-of-art in Vinyl and the most intensive and difficult design effort made at Pass Laboratories. The final product of this massive effort extracts the utmost performance from a simple topology  and operates with the extremely small and delicate signals coming from today\'s wide variety of phono cartridges. The result is music that emerges from a quieter background and blooms into a richer, more precise soundstage.

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Pass Labs Xs Preamplifier Pass Labs Xs Preamplifier
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Pass Labs Xs Preamplifier

$74,995

This large, dual-chassis preamplifier is built in true dual-mono arrangement. Each channel has its own power supply board with over 100,000uf of capacitance for unfettered transient response. Noise levels have been dropped from the already low-noise XP30. Refined circuit design and layout, new gain-stages with auto-bias and DC compensation all combine for optimal performance. But it all comes down to sound; once you listen to the Xs preamplifier, there is no going back.

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