Requirements

XA60 Owner’s Manual

(very loud) average acoustic signal in a 100 cubic meter room, peaks will be somewhat higher.

The XA60 has a massive toroidal transformer coupled to a high current DC reservoir. Recognizing that the XA60’s ability to resolve microdynamics is best experienced with clean power, the extreme low-level resolution of the XA-series benefits from a specially designed power supply that significantly reduces and rejects power line borne noise.

The XA amps open the sonic soundstage to the very limits of the recording format. Through the XA60 complex musical passages reveal themselves in the most dramatic manner. With the XA60 you will hear everything within the upper octaves, which includes any recording, source or loudspeaker issues. Keep this in mind when choosing complementary equipment, remembering that recordings and the other components in the signal chain will strongly dictate soundstage width and imaging and likely be the limiting factors in your listening environment. The room itself will also add its acoustic signature, and should be considered an audio component.

Speaker selection should be strictly a matter of personal taste. The XA60 is unconditionally stable into any load presented by a loudspeaker, but will provide less power into other than 8 ohms. The XA60 accommodates both single ended (RCA) and balanced inputs (XLR). Input impedance’s are 11 kohm unbalanced and 22 kohm balanced to permit integration with the widest possible range of upstream components.

You can position this amplifier anywhere you wish, but it must have ventilation. We do not recommend placing it in enclosed cabinets or small closets without means for air to circulate freely. Stacking these power amplifiers directly upon each other or upon other audio components is not recommended for the same reason. This amplifier idles at approximately 300 watts, the equivalent of an incandescent reading light. At idle most of that energy is dissipated across the heat sinks, so the heat generated by each XA60 is equivalent to an incandescent reading light. To dissipate this heat the product should have about 6 inches clearance to the top and sides for adequate air circulation.

Let’s talk about power requirements. The amplifier draws about 2.5 amps (continuous rms) at 120 volts out of the wall during operation, and this reflects mostly the idle current that we run through the output stage. When not actually intending to play music the XA60 should be left in standby mode. In standby mode it draws only a few watts of power, that necessary to keep the capacitors charged.

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Pass Labs XA60 owner manual Requirements
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XA60 specifications

Pass Labs XA60 is a high-performance audio power amplifier that epitomizes the pursuit of sonic purity and fidelity in the realm of high-end audio. It is the entry-level model in the esteemed XA series, but still incorporates many of the advanced technologies and features found in its more powerful siblings. Designed with a focus on delivering an immersive listening experience, the XA60 combines state-of-the-art engineering with superior craftsmanship.

One of the key features of the XA60 is its Class A topology, which ensures that the amplifier operates in the linear region for the entirety of its output range. This design lends itself to a warm, natural sound that captures the nuances of music without the harshness often associated with other amplifier classes. The XA60 is capable of delivering 60 watts per channel into an 8-ohm load, making it ideal for driving a variety of loudspeakers, including high-efficiency models.

The amplifier employs Pass Labs' patented "Pure Class A" output stage, which utilizes a unique biasing method to minimize crossover distortion. This innovative approach enhances the overall sonic clarity and dynamic range, allowing the XA60 to reproduce even the most complex musical passages with ease. Additionally, the amplifier is characterized by its dual-mono design, isolating the left and right channels to reduce crosstalk and interference, which ultimately results in a more focused soundstage.

Another standout characteristic of the XA60 is its massive power supply. The highly refined power supply includes large heatsinks and high-quality components that help maintain stability and reduce noise during operation. The robust thermal management ensures that the amplifier remains cool, even during extended listening sessions, thus preserving the integrity of the sound.

The build quality of the XA60 is nothing short of exceptional. Housed in a sturdy chassis, the amplifier features premium-grade connectors and a simple, yet elegant aesthetic that is typical of Pass Labs products. The thoughtful design not only ensures durability but also aids in minimizing vibration, further enhancing acoustic performance.

In summary, the Pass Labs XA60 amplifier represents a harmonious blend of advanced technologies, exceptional sound quality, and impeccable craftsmanship. With its Class A operation, dual-mono architecture, and high-quality components, the XA60 provides a nuanced, engaging listening experience that appeals to audiophiles seeking both precision and warmth in their audio systems. Whether used in a dedicated listening room or as part of a larger home audio setup, the XA60 is engineered to deliver music as it was meant to be heard.
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