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What will it do?

No attenuators inside

What you can expect

Introduction

Owner’s Reference GCHA Headphone Amplifier

Thank you for your purchase of the PS Audio GCHA Headphone Amplifi er.

The GCHA is a high-end headphone amplifi er designed for audiophile listening. It is based on PS Audio’s unique Gain Cell Technology.

The GCHA contains a Gain Cell’s preamplifi er stage and a Class A biased output stage. The GCHA can accept audio signals from any analog source or digital audio from your USB-compliant computer.

A unique feature of the GCHA is the volume control itself: which does not attenuate the audio signal in the tradional manner, rather, the level of the GCHA is adjusted by controling the gain of amplifi ers inside the GCHA.

In a traditional headphone amplifi er, an audio signal is presented to the amplifi er at full signal level. The headphone amplifi er then attenuates, or reduces, that input signal to reach the desired listening level with headphones. While this conventional method of controlling the volume is an acceptable practice, it does have drawbacks: the attenuators cause degradation of the audio signal. The GCHA solves this problem by use of the PS Gain Cell technology. Gain Cells have adjustable gain and need no attenuation of the input signal to achieve desired listening levels. Instead, the front panel volume control is a gain adjustment, rather than an attenuator. The removal of any attenuators in the signal path has a sonic advantage over conventional technologies.

You should expect unrivaled sonic qualities, with low noise, high performance audio being delivered to your headphones.

4826 Sterling Drive, Boulder, CO 80301

Introduction iv

PH: 720.406.8946 service@psaudio.com www.psaudio.com

 

©2005 PS Audio International Inc. All rights reserved.

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PS Audio GCHA manual What will it do? No attenuators inside What you can expect
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GCHA specifications

The PS Audio GCHA is an innovative headphone amplifier that has garnered attention for its remarkable performance and versatility. Designed to provide an extraordinary listening experience, the GCHA combines cutting-edge technology with user-friendly features to cater to both casual listeners and audiophiles alike.

One of the standout characteristics of the PS Audio GCHA is its powerful amplification capabilities. It delivers up to 1 watt per channel, ensuring that it can drive a wide variety of headphones, from high-impedance models to more sensitive in-ear monitors. This level of power allows the GCHA to reproduce dynamic sound stages and intricate details, making it an excellent choice for critical listening across various music genres.

The GCHA incorporates a unique analog signal path, which sets it apart from many digital headphone amplifiers on the market. PS Audio emphasizes a non-fatiguing listening experience, and the GCHA achieves this by utilizing high-quality components, including audiophile-grade op-amps and capacitors. This results in a warm, natural sound signature that remains true to the original recording.

Connectivity options are abundant with the GCHA, giving users flexibility in integrating it into their audio systems. The amplifier features multiple inputs, including RCA and 3.5mm connections, allowing for seamless integration with other audio devices. Additionally, a high-quality headphone output ensures that users can enjoy their music without compromise.

Integrated into the GCHA is also a high-performance power supply that minimizes noise and interference. This well-engineered power management system ensures consistent performance, providing a clean audio signal even in challenging environments. A sturdy and well-designed chassis adds to the amplifier's longevity while reducing the risk of physical damage.

Another notable feature of the PS Audio GCHA is its elegant design. With a sleek, modern appearance, it fits well in any audio setup, blending aesthetic appeal with practical functionality. The front panel includes intuitive controls, allowing users to adjust volume and input selection easily.

In summary, the PS Audio GCHA is a top-tier headphone amplifier that marries powerful performance with high-quality construction and user-friendly features. Its ability to deliver a rich and immersive listening experience makes it a worthy addition to the audiophile's equipment arsenal. Whether you're enjoying a casual listening session or engaging in serious music analysis, the GCHA stands out as an exceptional choice.
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