PS Audio GCA-250, GCA-500 manual Thank you, Three models, Cool and efficient running Power ratings

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®

Introduction

 

 

Owner’s Reference GCA Power Amplifier Series

Thank you

Thank you for your purchase of the GCA series power amplifi er. This document covers the three

 

stereo power amplifi er models, GCA-100, GCA-250, GCA-500.

The three models

Each of the three stereo amplifi er models is a dual mono power amplifi er, capable of driving nearly

 

every loudspeaker load with ease and beauty. GCA power amplifi ers are based on our unique

 

and proprietary Gain Cell Technology for the input electronics and SDAT Class D switching power

 

amplifi cation for the output.

Cool and efficient running

Power ratings

The GCA series have high effi ciency digital amplifi cation stages that allow them to run cool to the touch even while driving demanding loads and should offer years of trouble free performance of the highest standards.

Power ratings for each model are designated by their naming scheme into an 8 Ohm load. The GCA- 100 provides up to 100 watts per channel, both channels driven, into an 8 Ohm load and doubles its power rating into a 4 Ohm load. The GCA-250 provides up to 250 watts per channel, both channels driven, into an 8 Ohm load and doubles its power rating into a 4 Ohm load. The GCA-500 provides up to 500 watts per channel, both channels driven, into an 8 Ohm load and doubles its power rating into a 4 Ohm load.

What you can expect

You should expect state of the art performance and sonics from any of the GCA Series power amplifi ers. These power amplifi ers are unmatched by any other power amplifi er on the market in terms of performance within their rated power levels and will provide excellent performance in either a two channel or multi-channel environment.

4826 Sterling Drive, Boulder, CO 80301

Introduction iv

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

 

©2004 PS Audio International Inc. All rights reserved.

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Contents Document Owner’s ReferenceIntroduction Important Safety Instructions IntroductionTable Of Contents Cool and efficient running Power ratings Thank youThree models What you can expectIsolation Power Cables Conditioners Getting StartedLocation Getting StartedQuick Start Guide Quick Start GuideCheck for porper polarity Push the front panel logo to turn it onPlacement? Front panel power buttonQuestions and Answers Isolation? Front panel blue lightWhat voltages can the amp run on? Troubleshooting Finding a ground loop Try a cheater plug If the amp shuts down while playing music Warranty WarrantyConditions Remedy Miscellaneous Warranty Outside the USService ServiceService

GCA-100, GCA-250, GCA-500 specifications

PS Audio has long been recognized as a leader in high-fidelity audio equipment, and their line of power amplifiers, specifically the GCA-250, GCA-500, and GCA-100, showcases the company’s commitment to quality sound reproduction and cutting-edge technology. Each model in this series is designed to deliver exceptional performance, making them suitable for both audiophiles and casual listeners alike.

The GCA-250 is known for its impressive power output, delivering 250 watts per channel into 8 ohms. This power allows it to drive a variety of speakers effortlessly, providing dynamic sound with precision and clarity. One of the standout features of the GCA-250 is its Class AB amplifier design, which combines the best characteristics of both Class A and Class B amplification. This results in low distortion levels and high efficiency, enabling the amplifier to produce warm and rich audio without excessive heat generation.

Moving up the line, the GCA-500 takes performance to another level with its 500 watts per channel output into 8 ohms. This amplifier is built to handle more demanding speaker loads, making it ideal for larger systems or for those who prefer a more powerful sound experience. It incorporates advanced feedback control technologies that help minimize signal degradation, ensuring that the audio remains pure and detailed even at higher volumes. The GCA-500 also features a balanced input option, enhancing connectivity and reducing noise interference for a cleaner sound.

At the entry level, the GCA-100 offers a commendable 100 watts per channel into 8 ohms. Despite being the most compact model, it still embodies PS Audio’s high standards of construction and sound quality. The GCA-100 is perfect for smaller listening spaces or as part of a multi-room audio setup. It maintains a robust build quality and utilizes a simplified design to focus on delivering a straightforward yet enjoyable listening experience.

All three models share key characteristics such as their robust chassis construction, which helps minimize vibrations and interference, and their ultra-silent operation thanks to premium components and design considerations. They also offer seamless integration with other PS Audio products, making them versatile components in a complete audio system.

In summary, the PS Audio GCA series of amplifiers—GCA-250, GCA-500, and GCA-100—combine innovative technologies, high-quality materials, and powerful performance to cater to diverse audiophile needs. Whether for casual listening or serious audio pursuits, these amplifiers stand out as durable and high-performing choices that bring music to life with stunning fidelity.
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