PS Audio GCA-500, GCA-250, GCA-100 manual Quick Start Guide

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Quick Start Guide

Owner’s Reference GCA Power Amplifier Series

Power down first

Connect the inputs

Balanced inputs

RCA inputs

Rear switch

Speaker Cables

Once you have decided on the location and chosen the appropriate power cables, you are ready to install the GCA Series Power Amplifi er.

We would recommend that you power the entire system down before attempting to insert the GCA Series Power Amplifi er.

Insert the GCA Series Power Amplifi er into the system.

Connect the inputs of the GCA Series Power Amplifi er to the output of your preamplifi er, surround processor or preamp outputs of a receiver or integrated amplifi er. There are two choices of inputs: balanced or single ended. Once chosen, you must switch to the appropriate input via

the rear mounted input selection switch on the GCA Series Power Amplifi er.

Balanced inputs require a preamp or source that has a balanced output. These outputs are the preferred method of connection as a balanced XLR type of output allows the lowest noise connection between preamp and power amp, and allow owners to take advantage of the high common mode rejection characteristics found in the Gain Cell of the GCA Series Power Amplifi er. Be sure to use a high quality well shielded and well regarded interconnect for this critical link. PS Audio makes an entire line of excellent choices for interconnects, perfectly matched to your equipment’s needs.

RCA or single ended inputs will be the typical inputs as many preamplifi ers, surround processors, receivers and integrated amplifi ers have only this standard type of input. Be sure to use a high quality well shielded and well regarded interconnect for this critical link. PS Audio makes an entire line of excellent choices for interconnects, perfectly matched to your equipment’s needs.

Make sure the rear mounted input selection switch is placed in the appropriate position, either XLR or RCA (balanced or single ended). The switch must match the input you are using. Only one input on the GCA Series Power Amplifi er can be used at a time, either XLR or RCA.

Speaker cables are a critical link between your loudspeakers and your new GCA Series Power Amplifi er. Make sure you use only the highest quality. PS Audio makes an entire line of excellent choices for speaker cables, perfectly matched to your equipment’s needs.

4826 Sterling Drive, Boulder, CO 80301

Quick Start Guide 2

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

 

©2004 PS Audio International Inc. All rights reserved.

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Contents Owner’s Reference DocumentIntroduction Important Safety Instructions IntroductionTable Of Contents Three models Cool and efficient running Power ratingsThank you What you can expectLocation Isolation Power Cables ConditionersGetting Started Getting StartedQuick Start Guide Quick Start GuideCheck for porper polarity Push the front panel logo to turn it onQuestions and Answers Placement?Front panel power button 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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