Description of Operation

XP-20 Owner’s Manual

In application the XP-20s front panel controls and alphanumeric display are quite straight forward, and intuitive. We encourage you to become familiar with their operation prior to establishing any input connections with this unit. Experience indicates that engaging in a few minutes of exploration will add much to your ultimate enjoyment of this exceptional Pass Labs product.

The left most button on the front panel is Mute. Pressing this button toggles between mute on and mute off. Mute on removes signal from the output of the preamp.

The second button from the left is Mode. The front panel mode switch cycles the preamplifier control chassis display through 3 different levels of illumination, Bright, Dim and Off. Default setting is Bright. Manually selection of illumination levels over- writes the default setting. Removing power re-boots the system and re-establishes the default settings. When in Off the display will illuminate at the Dim level only as control selections are being made. Six seconds after the last control command the display will blank, returning to Off.

The two input elect switches (designated by left and right pointing arrows) toggle through inputs 1-5 in sequence.

When selecting an active input, as previously indicated, the left and right arrows select for inputs 1 through 5. Input 5 is unique in that it is linked with the PASS THRU (Home Theatre) function. (The HOME THEATRE / PASS THRU FUNCTION is discussed at length below.)

Before selecting the theatre pass through (pass thru) option, it is imperative that the input device on input number 5 has its gain set to minimum. Failure to follow this precaution could result in a volume level intolerable to both ears and speakers. (The standard 2 volt source component, with the pre-amp set to 0 dB, will drive most power amps to full rated output.)

As an added precaution when “pass through” is selected the volume ramps upto 75. This is to prevent nasty surprises when “pass thru” is selected accidentally. The ramp up sequence can be stopped at any time by hitting any button on the remote.

The theater “Pass Thru” function bears special attention, this function is only available as direct access through the hand held remote control. This function is associated only with input number 5 and has two positions selected with the “pass thru” button on the

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Pass Labs XP-20 owner manual Description of Operation
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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.
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