PS Audio GCA-100, GCA-500 Placement?, Isolation? Front panel blue light, Front panel power button

Page 8

®

Should the unit be on all the time?

Are there any internal fuses?

Questions And Answers

Owner’s Reference GCA Power Amplifier Series

The GCA Series Power Amplifi er is best left powered on at all times. The current draw is negligible and keeping it powered on will make sure the internal AC capacitors stay working properly.

There is no harm in leaving the unit on at all times as the lifespan of the GCA series power amplifi er will be unaffected by leaving it on. We recommend placing the amplifi er in its standby mode via the front panel logo/standby button when the amp is not in use. We further recommend leaving power to the GCA series power amplifi er at all times.

There are no user replaceable internal fuses inside the GCA series power amplifi er. There is an internal fuse that should only be replaced by an authorized service center if needed. The components inside the GCA series power amplifi er have lethal voltages when powered and even when un-powered. Capacitors inside the GCA series power amplifi er can retain an electrical charge after the unit has been powered down. Do not attempt to get inside the unit for any reason unless instructed to do so by your dealer or an authorized service representative. Should the GCA series power amplifi er cease to function, contact your dealer or PS Audio’s service center for help.

Placement?

Placement of the GCA series power amplifi er is not critical. Placement with respect to other equipment

 

can be important. In general, place the GCA series power amplifi er close to the preamplifi er or surround

 

processor as possible. It is always preferable to have long speaker cables and short interconnects

 

if there is a distance problem. Long interconnect cables will degrade the performance of most

 

preamplifi ers, surround processors or integrated amplifi ers and receiver preamp outputs.

Isolation?

Front panel blue light

Isolation through the use of spikes, cones or Sorbothane feet is recommended for the GCA series power amplifi er if space and budget allows. Isolation of any piece of high-end stereo and theater equipment is always recommended wherever practical.

The brightness of the blue light on the front of the GCA series power amplifi er can be adjusted via the rear panel three position switch. The switch is located on the upper left hand corner of the GCA series power amplifi er as you face the rear panel. When the switch is in the upper most position, the front panel light will be the brightest. The middle position of the switch provides medium brightness, the lower position shuts the light off.

Front panel power button

The front panel PS logo is the power button. Press the blue PS logo on the GCA series power amplifi er’s front panel to turn the amplifi er on or off. We recommend keeping the rear mounted switch for the blue light brightness at one of the two visible levels so you can tell if the GCA series power amplifi er is on or off.

Do cables make a difference?

What speakers can I use?

Yes, cables make a difference. It is important to use the best power cables, interconnects and speaker cables when operating the GCA series power amplifi er.

You can power nearly every loudspeaker made with a GCA series power amplifi er. It is relatively tolerant of most loudspeakers loads and will not be damaged by attempting to power heavy loads. If, while playing music, the GCA series power amplifi er continues to go into a protection mode when the music gets loud, it means that the speaker load is probably too diffi cult for the GCA series power

4826 Sterling Drive, Boulder, CO 80301

Questions and Answers 4

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

 

©2004 PS Audio International Inc. All rights reserved.

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Introduction Owner’s ReferenceDocument 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 Conditions Remedy Miscellaneous WarrantyWarranty 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.
Top Page Image Contents