Pass Labs XP-20 specs

XP-20 Owner’s Manual

remote; those two positions, on and off. This function is useful in that it allows the preamplifier to function as a unity buffer (0dB gain at volume step 75) for use with components that best function with their own volume controls, such as surround processors. When the right-front and left-front outputs of the processor are routed through input 5 of the XP-20 (with the gain of the XP-20 set for step 75), the volume will be under full control of the processor and the XP-20’s action will be totally transparent.

When the user chooses this setting the software sets the XP-20’s gain to step 75 and displays the setting as 75P for both right and left channel, regardless of how it was previously configured. When at unity gain in the home theater mode (Pass Thru) both left and right level controls on the XP-20 will have a displayed value of 75P (0 dB), and any previous balance settings will be over written, allowing total control by the processor. Both of these default conditions are intentional, and intended to make the most advantageous use of your source electronics.

You may also set any input to unity (0 dB) by setting the volume at step 75 from the remote or front panel control.

When “Pass Thru” is de-selected the XP-20 reverts back to the previous input, volume and balance settings.

Input 5 may be manually selected and used without the “pass thru” function, in which case its behavior will be identical to inputs 1-4.

The electronic volume control allows greater than 80 dB range and is driven by a micro-controller that reads the optical encoder serving as a front panel volume control.

In this manner tracking of the volume of the two balanced channels is possible with accuracy unavailable on any ordinary analog volume control, assuring precise level steps and high common mode noise rejection in balanced circuits. Wayne Colburn’s exceptional volume control in conjunction with the fluorescent display give the user ability to replicate volume levels with absolute accuracy in steps of roughly 1 dB or less.

The remote control uses a multi-button direct access architecture. This remote is designed to operate several pieces of Pass Labs electronics, not all of the functions available on this remote will be applicable to all of your Pass Laboratories electronics. Specifically the uppermost left hand button marked “power” does not work with the XP-20. The XP-20 is designed to be powered continuously and therefore this button will not affect the pre amplifiers operation.

XP-20 specifications

The Pass Labs XP-20 is a high-performance preamplifier that embodies the sophisticated engineering and design philosophies of its founder, Nelson Pass. Renowned for its exceptional sound quality and performance, the XP-20 is an evolution of its predecessor, the XP-10, and is designed to meet the needs of audiophiles and music lovers who demand the very best in their audio equipment.

At the core of the XP-20 is a fully balanced circuitry design, which allows for improved signal integrity, reduced noise, and enhanced dynamic range. This balanced topology not only minimizes distortion but also ensures that the audio remains pure and true to the source material. The preamplifier features dual differential gain stages, which contribute to its remarkable clarity and transparency, making it a perfect partner for high-end power amplifiers.

One of the standout features of the XP-20 is its extensive input and output options. The unit includes multiple single-ended and balanced inputs, ensuring compatibility with a vast array of audio sources, including CD players, turntables, and digital streaming devices. The outputs are equally versatile, allowing for easy connection to power amplifiers or active speakers.

Another key characteristic of the XP-20 is its massive power supply, which provides the necessary current and voltage to drive the preamp's demanding circuitry. This robust power supply is designed with low noise and high regulation, ensuring that the unit operates efficiently while maintaining sonic fidelity.

Furthermore, the XP-20 incorporates advanced volume control technology, allowing for precise adjustments without compromising audio quality. The volume control is designed to minimize signal degradation, which results in a more accurate representation of the music.

Thermal management is also a critical aspect of the XP-20's design. With substantial heatsinking and ventilation provisions, the unit remains cool even during heavy use, ensuring long-term reliability and performance.

The build quality of the Pass Labs XP-20 is exceptional. The chassis is solid and well-constructed, with an aesthetic that exudes elegance and professionalism. It's available in a sleek black or silver finish, making it a stylish addition to any audio system.

In summary, the Pass Labs XP-20 is a preamplifier that exemplifies high-end audio engineering. Its combination of balanced circuitry, versatile connectivity, robust power supply, and meticulous design make it an outstanding choice for those seeking to elevate their audio experience. Whether for critical listening or casual enjoyment, the XP-20 stands as a testament to Pass Labs' dedication to audio excellence.