X0.2 Owner’s Manual

up/down arrows. The up arrow toggles to a straight through function with neither attenuation nor gain. This function is useful in that it allows the pre-amplifier to function as a unity buffer 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 X0.2 (with the gain of the X0.2 set for Unity gain), the volume will be under full control of the processor and the X0.2’s action will be totally transparent. When the user chooses Unity this sets the X0.2’s gain to the straight through 0dB setting, regardless of how it was previously configured. When

at “Unity” both left and right level controls on the X0.2 will have a displayed value of 54, and any previous balance settings will be lost. Both of these default conditions are intentional, and intended to make the most advantageous use of your source electronics. You may also set any of the four inputs to unity (0dB gain) by manually setting the volume of that input at 54.

Before selecting this option, it is imperative that the input device on input number 5 have its gain set to minimum. Failure to follow this precaution could result in a volume level intolerable to both ears, speakers and bank account. We trust that the remote control, with its four buttons that duplicate those of the preamp front panel will enable you to quickly select inputs and establish levels of output.

The rear mounted pair of five-way binding posts on the power supply

/control unit are intended to actuate the remote on/off function of our own X series power amplifiers from the X0.2 front panel, or via the four button remote. When the preamp mode “Amp” is selected it allows the user to switch a nominal 12 volts DC at maximum draw of 50 milliamps to these binding posts. In some instances this voltage may have the ability to control products from other manufactures, but we by no means have a comprehensive listing of their compatible features. If you have questions about compatibility your service technician and dealer are an excellent source of information. This setting has no “default” condition, it maintains the last setting chosen by its user.

The remote control uses the same four-button system as the front panel controls, but in a slightly different physical configuration. The far left button is mode < left the far right button is mode > right. The top button is select ^ up and the bottom is select v down. The main chassis display shows the active function. The display has two brightness levels and off. If any control is used the display reverts to its dim setting. The off mode shows the display for about 7 seconds and then turns off.

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Pass Labs pre-amplifier owner manual
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pre-amplifier specifications

Pass Labs, an esteemed name in the realm of high-fidelity audio equipment, has garnered a reputation for producing premium amplifiers and pre-amplifiers designed for audiophiles who crave exceptional sound quality. Among its acclaimed offerings is the Pass Labs pre-amplifier, a device that captures the essence of music reproduction with unparalleled precision and clarity.

One of the defining features of Pass Labs pre-amplifiers is their use of a fully balanced differential circuit topology. This design significantly reduces common-mode noise, preserving the integrity of the audio signal and ensuring that the listener experiences sound as it was intended to be heard. This topology is especially effective in eliminating distortion and improving dynamic range, hallmarks of a quality audio experience that Pass Labs strives to deliver.

The pre-amplifier is equipped with premium-grade components, including high-quality capacitors and resistors, which are crucial for maintaining signal purity. These components contribute to the overall fidelity of the sound, allowing for rich, detailed reproduction across a wide frequency range. Additionally, the circuit design is optimized for low noise and low distortion, ensuring that even the most subtle nuances of music are faithfully rendered.

Another standout characteristic of the Pass Labs pre-amplifier is its seamless integration with various audio sources. With multiple input options, including XLR and RCA connectors, the pre-amplifier accommodates a variety of devices, from turntables to digital players. This versatility makes it an ideal choice for audiophiles with diverse audio setups, ensuring compatibility regardless of the source.

To enhance user experience, Pass Labs incorporates intuitive controls and a user-friendly interface, allowing for easy adjustments and monitoring of audio settings. Features such as a built-in volume control and selectable input sources provide convenient options for users, ensuring a streamlined listening experience.

Moreover, the robust build quality of Pass Labs pre-amplifiers exudes a sense of durability and sophistication. The solid chassis and meticulous attention to detail not only serve to protect the internal components but also reduce external vibrations that could interfere with sound performance.

In conclusion, the Pass Labs pre-amplifier stands as a prime example of engineering excellence in high-fidelity audio. With its balanced differential circuit topology, premium components, and user-friendly features, it is designed to meet the discerning demands of audiophiles. Whether in a home listening environment or a professional setting, the Pass Labs pre-amplifier promises to deliver an extraordinary audio experience that brings music to life.
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