PS Audio Stereo Amplifier GCC 250 User Manual

Owner’s Reference

Owner’s Reference GCC Power Ampliﬁer Series

Instructions for use

GCC Power Amp Series

Document 15-043-01-1

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Introduction i

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Table Of Contents

Owner’s Reference GCC Power Ampliﬁer Series

Introduction

Getting Started

2 - 3

Quick Start Guide

Setup Instructions

4 - 6

7 - 8

Questions and

Answers

9 - 11

Troubleshooting

Speciﬁcations

Warranty

13 - 14

15 - 16

Service

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Introduction

Owner’s Reference GCC Power Ampliﬁer Series

Thank you

Thank you for your purchase of the GCC series Control Ampliﬁer. This document covers the three

stereo Control Ampliﬁer models, GCC-100, GCC-250, GCC-500.

Control Ampliﬁers are actually Variable Gain Power Ampliﬁers™ with multiple inputs. Users can select

any one of 5 input sources and control the gain of the power ampliﬁer via the front panel control or

through the supplied remote control, which results in the volume to the speakers being controlled.

The three models

These are not

integrated

ampliﬁers

Control Ampliﬁers are unique in the world of audio and are the shortest and purest audio path of any

product on the market. While Control Ampliﬁers resemble an integrated ampliﬁer in their operation,

they are not integrateds.

Integrated ampliﬁers are a marriage of a preampliﬁer, or input volume attenuator and a power ampliﬁer.

Because of the PS Audio Gain Cell™, the GCC Series of products do not attenuate the input signal

and do not “throw away” the unwanted signal. Instead, the GCC Control Ampliﬁers vary their gain in

response to the user’s front panel or remote commands.

This creates the world’s ﬁrst Variable Gain Power Ampliﬁer™, or the GCC Control Ampliﬁer.

Each of the three Control Ampliﬁer models is a dual mono Control ampliﬁer, capable of driving nearly

every loudspeaker load with ease and beauty.

GCC power ampliﬁers are based on our unique and proprietary Gain Cell technology for the input

electronics and SDAT Class D switching power ampliﬁcation for the output.

The GCC series have high efﬁciency digital ampliﬁcation 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.

Cool and efﬁcient

running

Power ratings for each model are designated by their naming scheme into an 8 Ohm load. The GCC-

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 GCC-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 GCC-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.

Power ratings

You should expect state of the art performance and sonics from any of the GCC Series Control

Ampliﬁers. These Control Ampliﬁers are unmatched by any other power ampliﬁer/preampliﬁer

combination 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.

What you can

expect

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Getting Started

Owner’s Reference GCC Power Ampliﬁer Series

Once your new GCC Series Control Ampliﬁer is unpacked, you’ll need to ﬁnd a convenient place to set

it. Placing the Control Amp nearest to your source equipment is probably the best idea since you will

want to have as short an interconnect between the source and the Control Ampliﬁer as you can.

Location

There are several ways to mount the GCC Series Control Ampliﬁer: on a rack shelf or on a shelf near

your sources.

If the GCC Series Control Ampliﬁer is to be placed on the ﬂoor or carpet, make sure the unit is not

going to come in contact with water or cleaning solvents. Make sure the carpet does not interfere

with airﬂow to the amp.

Cautions

Isolation

The GCC Series Control Ampliﬁer can beneﬁt from aftermarket isolation devices such as cones, spikes

and Sorbothane pads.

Once you have chosen the location for the GCC Series Control Ampliﬁer you can use the supplied

AC power cord to connect it to the AC wall receptacle or you can use an aftermarket power cord and

receptacle.

Power Cables

We strongly recommend the use of a PS Audio xStream Power™ AC cable and a PS Power Port™

AC receptacle to feed the GCC Control Ampliﬁer power. While the supplied power cable is adequate

for the task it is not going to provide the best performance. Choosing any xStream Power cable will

make a signiﬁcant performance improvement over the stock power cable.

We recommend the use of power conditioning equipment, such as a PS Audio Power Plant, UPC-

200 or any of the Ultimate Outlet or Power Director series from PS. We do not recommend the use of

simple AC ﬁlter power conditioners, not made by PS Audio, as most of these will ”bleach” the sound

and rob the music or video soundtrack of some measure of life and dynamics. If you do not use PS

Audio power conditioning equipment, you would be advised to plug the GCC Control Ampliﬁer directly

into the AC wall receptacle.

Conditioners

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Quick Start Guide

Owner’s Reference GCC Power Ampliﬁer Series

Once you have decided on the location and chosen the appropriate power cables, you are ready to

install the GCC Control Ampliﬁer.

Power down ﬁrst

We would recommend that you power the entire system down before attempting to insert the GCC

Control Ampliﬁer.

Insert the GCC Control Ampliﬁer into the system.

Connect the inputs of the GCC Control

Ampliﬁer to the output of your source

equipment such as CD players, phono

preampliﬁers, tuner, etc. There are two

choices of inputs: balanced or single

ended. There is one balanced input and

four single ended RCA inputs.

Connect the

inputs

Balanced inputs require a source that

has a balanced output. These outputs

Balanced inputs

are the preferred method of connection

as a balanced XLR type of output allows

the lowest noise connection, and allow

owners to take advantage of the high

common mode rejection characteristics found in the Gain Cell of the GCC Control Ampliﬁer. 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 sources have only this standard type of

input. Be sure to use a high quality well shielded and well regarded interconnect for this critical link.

RCA inputs

Speaker cables are a critical link between your loudspeakers and your new GCC Control Ampliﬁer.

Make sure you use only the highest quality such as a PS Audio speaker cable that will be perfectly

matched to your equipment’s needs.

Speaker Cables

Pay close attention to the polarity on the rear panel binding posts. It is critically important that you

match plus and minus (red and black) of the GCC Control Ampliﬁer to the plus and minus of your

speaker. Carefully observe the polarity. The plus or red terminal of the GCC Control Ampliﬁer must

eventually be tied to the plus or red terminal of your loudspeaker. The GCC Control Ampliﬁer is a non-

inverting ampliﬁer design meaning it is in phase with the input signal.

Check for proper

polarity

Subwoofer

connections

Use the Aux Out RCA connectors on the rear of the GCC Control Ampliﬁer to feed your subwoofer’s

low level inputs. Some subwoofers have high level inputs where the output of the ampliﬁer can be

connected as an input to the subwoofer. Generally there is no problem. In a few rare instances there

may be a problem, which will show itself as problematic if the amp’s protection comes on after hooking

up the sub. REL subwoofers and some Sunﬁre subwoofers can be problematic. Please check with

the factory or your dealer if you encounter these subwoofers or any problems.

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Quick Start Guide

Owner’s Reference GCC Power Ampliﬁer Series

If you wish to use a second power ampliﬁer to bi-amp,

Bi-amping

you can use the GCC as either the top end ampliﬁer

or the bottom end ampliﬁer for the bass. If you have

a GCC-100 we would recommend this be used on

the top end (tweeter) of the bi-amp speaker. Use the

largest ampliﬁer for the bass frequencies. Connect

the second ampliﬁer to the Aux Out RCA connectors

on the rear of the GCC Series Power Ampliﬁer.

Locking binding

posts

These binding posts, on the rear panel of the GCC

Control Ampliﬁer, will accept either spade or banana

type connectors. To use a spade or forked connector,

simply unscrew the binding post, place the tongs of

the spade over the threaded binding post and tighten

the outer barrel of the binding post. It is permissible

to us a wrench to tighten the binding post down.

Connecting a

banana style

The banana style connectors should be inserted into

the center hole on the rear of the binding post. The

PS Audio binding post is a unique locking design for

banana style connectors. You should not attempt

to insert a banana connector into the GCC Control

Do not ground

the outputs

Ampliﬁer’s binding post while the binding post is locked closed. To insert a banana style speaker

cable connector, loosen the outer barrel of the GCC Control Ampliﬁer’s binding post, insert the banana

connector and then tighten. Note that once this has been tightened, the banana connector is locked

securely in place. Do not attempt to remove the banana connector without ﬁrst loosening the outer

barrel of the binding post.

Plug it into a

power source

Make sure that neither the + nor the – terminals of the ampliﬁer come in contact with each other, or

ground, or anything other than the speaker terminals when the ampliﬁer is on. This will shut the amp

off and place it in a protection mode.

Plug the GCC Control Ampliﬁer into the power source using the AC power cable you selected. It

is advisable to use as short a power cable as possible to the GCC Control Ampliﬁer. We do not

recommend plugging the GCC Control Ampliﬁer into an extension strip or plug extender unless it is

of the highest quality and heavy duty design, such as the PS Audio Juice Bar or device with similar

properties.

Make sure the source equipment, like a CD player or tuner, are turned on. Then, press the front panel

PS logo on the GCC Control Ampliﬁer to power up the GCC Control Ampliﬁer. There is a normal 2

second delay for the ampliﬁer once powered up.

Push the front

panel logo to turn

it on

At this point you should be ready to enjoy the beneﬁts of the GCC Control Ampliﬁer and enjoy!

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Setup instructions

Owner’s Reference GCC Power Ampliﬁer Series

The Gain Cell Control Ampliﬁer Setup menu allows you to adjust the following controls:

Front panel setup

• Input Name

• Input Gain

• Home Theater Bypass Input

The setup menu allows

you to view the following

information:

• Software

Version

To enter the setup menu,

turn the GCC off from

the front panel power

How to enter into

the setup menu

button. Then, hold down

the Input Up and Input

Down buttons and press

the Power Button while

holding the other buttons.

The display will then read:

(Setup) Input 1 Name

To scroll through the

options, use the Input Up

or Input Down buttons.

The list of options are:

Input 1 Name

Input 1 Gain

Input 2 Name

Input 2 Gain

Input 3 Name

Input 3 Gain

Input 4 Name

Input 4 Gain

Input 5 Name

Input 5 Gain

Home Theater Bypass

Software Version

Press the Mute

button to accept

Once you have selected the option that you want, press the Mute button to enter that mode. You

should see the current setting on the 2nd line of the display (below the option name).

Press the power

button to exit

At any time, you may press the Power button to exit to Setup Menu.

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Setup instructions

Owner’s Reference GCC Power Ampliﬁer Series

Input Name Editing:

Input naming

This mode allows you to edit the name of the Input on the Display.

The character with an underscore is the character that you are currently editing.

To edit the Input Name, you will use the following controls:

Mute Button –

Name the inputs

whatever you

want

This button allows you to move to the next character. When you press it, you will see the

underscore move to the next character. When you reach the end of the line, the underscore will start

again at the beginning of the line.

Volume Control Knob –

Turn the volume control knob to edit the current character. For your reference, here is a list of the

possible characters:

0123456789:-#. ABCDEFGHIJKLMNOPQRSTUVWXYZ

When you are ﬁnished editing the name, hit either Input Up or Input Down to go to the next option,

or hit the Power button to exit the Setup Menu.

Input Gain Editing:

Adjust the gain of

each input

This mode allows you to adjust the gain of each individual input relative to the other inputs. You can

use this control to Gain match each of your components so that they are all at the same level on the

volume control.

To edit the Input Gain, you will use the following controls:

Volume Control Knob –

Turn the volume control knob to edit the gain. You can go down to a minimum of -5dB or up to a

maximum of +5dB in 0.1dB steps.

When you are ﬁnished editing the gain, hit either Input Up or Input Down to go to the next option, or

hit the Power button to exit the Setup Menu.

Home Theater Bypass Mode:

Home Theater

bypass

This mode allows you to assign one of the Inputs as a Home Theater Bypass. This allows you to

use your 2-channel preamp in your multichannel home theater system. Normally, your Surround

Sound Processor or Receiver would be plugged into this input.

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Setup instructions

Owner’s Reference GCC Power Ampliﬁer Series

To edit the Home Theater Bypass Input, you will use the following controls:

Volume Control Knob –

Turn the volume control knob to edit the theater bypass input. Turn the knob until it reaches the

desired Input. You may also turn the knob all the way down to turn this feature off.

When you are ﬁnished editing the home theater bypass input, hit either Input Up or Input Down to go

to the next option, or hit the Power button to exit the Setup Menu.

Software Version:

This mode allows you to view the current software version.

Software version

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Questions And Answers

Owner’s Reference GCC Power Ampliﬁer Series

The GCC Control Ampliﬁer 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.

Should the unit

be on all the

time?

There is no harm in leaving the unit on at all times as the lifespan of the GCC Control Ampliﬁer will be

unaffected by leaving it on. We recommend placing the ampliﬁer 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

GCC Control Ampliﬁer at all times.

There are no user replaceable internal fuses inside the GCC Control Ampliﬁer. There is an internal fuse

that should only be replaced by an authorized service center if needed. The components inside the

GCC Control Ampliﬁer have lethal voltages when powered and even when un-powered. Capacitors

inside the GCC Control Ampliﬁer 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 GCC Control Ampliﬁer cease to function, contact your

dealer or PS Audio’s service center for help.

Are there any

internal fuses?

Placement of the GCC Control Ampliﬁer is not critical. Placement with respect to other equipment

can be important. In general, place the GCC Control Ampliﬁer as close to the source equipment

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 preampliﬁers,

surround processors or integrated ampliﬁers and receiver preamp outputs. The outputs on

Placement?

Isolation?

Isolation through the use of spikes, cones or Sorbothane feet is recommended for the GCC Control

Ampliﬁer 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 GCC Control Ampliﬁer can be adjusted via the rear

panel three position switch. The switch is located on the upper left hand corner of the GCC Control

Ampliﬁer 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 blue

light

The front panel PS logo is the power button. Press the blue PS logo on the GCC Control Ampliﬁer’s

front panel to turn the ampliﬁer 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 GCC Control Ampliﬁer is on

or off.

Front panel power

button

Yes, cables make a difference. It is important to use the best power cables, interconnects and speaker

cables when operating the GCC Control Ampliﬁer.

Do cables make a

difference?

You can power nearly every loudspeaker made with a GCC Control Ampliﬁer. It is relatively tolerant

of most loudspeakers loads and will not be damaged by attempting to power heavy loads. If, while

playing music, the GCC Control Ampliﬁer continues to go into a protection mode when the music gets

loud, it means that the speaker load is probably too difﬁcult for the GCC Control Ampliﬁer and the next

What speakers

can I use?

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Questions And Answers

Owner’s Reference GCC Power Ampliﬁer Series

higher wattage model should be considered.

The GCC Control Ampliﬁer is speciﬁc to your country’s voltage. Do not use the GCC Control Ampliﬁer

on a voltage higher than it is rated for. For instance, do not take a 120 volt rated GCC Control Ampliﬁer

and attempt to use it in a 230 volt country. Failure to observe this cautionary note will void your

warranty and may damage the ampliﬁer. If you need to operate the GCC Control Ampliﬁer at a voltage

other than the voltage it was designed for, contact your dealer, distributor or the factory.

What voltages

can the amp run

on?

If the GCC Control Ampliﬁer protection circuitry is activated, the ampliﬁer will immediately shut off and

the fault will be indicated on the front panel display. Check for the source of the problem, then use the

front panel logo switch to restart the amp.

Protection circuitry

The GCC Control Ampliﬁer produces little heat under normal operation. There are vent holes at the

rear of the chassis, both top and bottom and you should be careful not to obstruct these vents if

possible.

Does the amp

require ventilation?

The GCC Control Ampliﬁer can remotely activate another piece of equipment, such as a second power

ampliﬁer, by a DC control voltage. Using a small mini jack, you can use the GCC Control Ampliﬁer to

turn on and off another piece of equipment with a 12 volt trigger. When connected to a GCA Control

Ampliﬁer trigger input jack, located on the lower left hand corner of the GCA ampliﬁer’s rear panel (as

you face the panel), the GCC Control Ampliﬁer will now turn the second ampliﬁer on and off with a

push of the GCC’s front panel power button.

How does the DC

trigger work?

How do I dim the

display?

To dim the front panel display, you must use the remote control. On the control is a dim button.

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Troubleshooting

Owner’s Reference GCC Power Ampliﬁer Series

If no sound comes out of the GCC Control Ampliﬁer there are several areas to check:

No sound comes

out of the amp

• You are not getting an audio signal into the Control Ampliﬁer

• You are not properly connected to the loudspeakers

• There is no power from the AC socket

• You have the DC trigger jack connected without an appropriate voltage to turn it on

It is obviously important that the GCC Control Ampliﬁer receive a high level signal from the source (CD,

DVD, tuner, etc.) or whatever you are feeding it. One way to determine if this is the case, would be

to ﬁrst go to your loudspeaker. Place your ear very near the tweeter and listen for a very slight hiss.

If you hear one, chances are good the amp is working ﬁne, connected properly at the speakers and

you have an input problem. If you

Check the input

suspect an input problem, there are

several possibilities:

• You have not selected to

correct input. Check and

make sure the input you

selected is the correct

input.

Try another

source

• The volume control is too

low or the mute is on.

• The source is not playing.

Check another source.

• Theconnectingcablesare

defective. Use another

set.

If you suspect an output problem,

use the same technique of placing

your ear very close to the speaker’s tweeter while the GCC Control Ampliﬁer is turned on. You should

hear a very slight amount of hiss from the tweeter. If you do not, check the speaker cable/amp

connection. Make sure the amp’s front panel light is on, indicating proper performance.

If you suspect an

output problem

If there is no sound and you are convinced the GCC Control Ampliﬁer has power and its front panel

light is lit, contact your dealer, distributor or PS Audio for further assistance.

If there is a lot

of hiss in your

speaker

If there is an excessive amount of hiss or noise from the loudspeaker, it is probably not from the GCC

Control Ampliﬁer as this amp has extremely low self noise. Turn the amp off, remove the interconnect

cables from the GCC Control Ampliﬁer and then turn the ampliﬁer back on. Listen once again to see

if the noise has been diminished. If it has, chances are good you either need to replace your source a

quieter one or you may need to experiment with better shielded interconnect cables.

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Troubleshooting

Owner’s Reference GCC Power Ampliﬁer Series

If you experience a hum through the speakers this can be caused by several things. The ﬁrst is the

source. If there is an excessive amount of buzz or noise from the loudspeaker, it may be caused by a

ground loop, a light dimmer in the home, poor AC power, or any number of causes. The quickest way

to determine where to start your search is to simply turn the amp off, disconnect the cables feeding

its input, and see if the hum goes away when you turn it back on. If it does, it’s most likely a ground

loop or buzz from a dimmer.

If you have hum

or buzz

The easiest way to ﬁgure out where ground loop problems lie is by the process of elimination. You

need to determine where the hum or buzz is coming from within your system.

If the hum/buzz goes away when you remove the inputs to the GCC Control Amp, your next step will

be to reconnect the sources, one at a time, listening for the return of the hum. After each connection,

check for hum until you discover the

humming culprit.

Finding a ground

loop

VCR’s, surround processors, and

any device that is connected to

a television cable or satellite dish

can cause a loud buzz and should

always be suspect. If, by the process

of elimination described above, you

determine it is a component like a

Process of

elimination

VCR that is causing the hum/buzz

to occur, and using a cheater plug

Try a cheater plug

or removing the ground pin on a

PS xStream Power Cable doesn’t

help matters, it may be necessary

to isolate the cable connection

(CATV) with an isolation transformer.

It could be the

cable TV

This inexpensive device is available

at most Wal Mart, Radio Shack or

department store type outlets and is sometimes called a ‘matching transformer’. If you have problems

ﬁnding one, call your local cable TV company for advice. The matching transformer will be placed

between the cable TV cord and the VCR, TV or processor.

Just remember, take the system down to its simplest level of connection. Find a way to hook the

system up with as many pieces of the system missing or not connected. Keep it simple and get it

to the point where the hum’s gone. Then start adding back components one at a time until the hum

returns.

Finding the problem is 9/10th of the work in ﬁnding a solution.

If the blue light is too bright, or if it is not lit but the ampliﬁer plays, check the rear panel of the GCC

Series Power Ampliﬁer for the three position dimmer switch. The switch is located on the rear panel,

upper left hand side as you face the rear of the unit.

Blue light is too

bright

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Troubleshooting

Owner’s Reference GCC Power Ampliﬁer Series

If you have a problem connecting a subwoofer, please refer to the quick start guide in the front of this

manual. We do not recommend connecting the high level inputs of a self power subwoofer to the

outputs of the GCC Series Power Ampliﬁer for some subwoofers. For many subwoofers it will be ﬁne.

Some, like the REL subwoofers, and the Carver, Sunﬁre type of subwoofers may not work properly

when connected to the GCC Series Power Ampliﬁer’s outputs. This is because the GCC Series Power

Ampliﬁer is a balanced type of output with a DC voltage as referenced to ground.

Problems with

subwoofers

If the GCC Power Ampliﬁer shuts off when playing music, there are several possibilities. If the music

plays quite loudly but shuts off on the most explosive parts of the music or video soundtrack, then the

GCC Power Ampliﬁer is probably underrated for the type of speaker you are using. See your dealer or

call PS Audio for advice on going to the next size GCC Series Power Ampliﬁer in the series.

If the amp shuts

down while

playing music

If the ampliﬁer shuts down with very little volume, then check the speaker cable connections. The

GCC Power Ampliﬁer is so powerful that it can actually play music at low levels even into a near short

on its outputs. Chances are good that you have a shorted connector (plus touching the minus) and

you should simply check carefully on the back of the speaker and the back of the ampliﬁer.

If you can’t dim the front panel display, it’s probably because you are not using the remote control.

The only way to dim the front panel display is to press the Dim button on the remote. As soon as you

change volume or inputs, the display will automatically brighten and then dim back to its preset level.

If you need to dim the blue light on the front panel below the display, there is a switch located on the

rear of the GCC that has three brightness settings.

If you cannot dim

the display

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Speciﬁcations

Owner’s Reference GCC Power Ampliﬁer Series

Conﬁguration Dual Mono

Class of Operation D

Single-ended Inputs RCA - 5 pair

Balanced Inputs XLR - 1 pair

Input Device Type PS Audio Gain Cell

Input Impedance 47.5 kohms

Input Sensitivity 8.5V

Pre-Out RCA - 1 Pair

Output Binding Posts PS Audio w/ Locking Banana Jacks

Output Power @ 8 ohms (GCC-100) 100 Watts

Output Power @ 4 ohms (GCC-100) 200 Watts

Output Power @ 8 ohms (GCC-250) 250 Watts

Output Power @ 4 ohms (GCC-250) 500 Watts

Output Power @ 8 ohms (GCC-500) 500 Watts

Output Power @ 4 ohms (GCC-500) 1000 Watts

Gain (RCA) 31 to 41dB (Adjustable)

Gain (XLR) 37 to 47dB (Adjustable)

Frequency Response (GCC-100) 10Hz - 20kHz

(+0.1/-0.1dB)

Frequency Response (GCC-250) 10Hz - 20kHz

(+0.1/-0.2dB)

Frequency Response (GCC-500) 10Hz - 20kHz

(+0.1/-1.0dB)

THD (GCC-100 @ 1W) < 0.02%

THD (GCC-100 @ 100W) < 0.03%

THD (GCC-250 @ 1W) < 0.02%

THD (GCC-250 @ 250W) < 0.08%

THD (GCC-500 @ 1W) < 0.02%

THD (GCC-500 @ 500W) < 0.05%

Power Consumption @ idle < 40 Watts

Weight (GCC-100) 26.0 lbs.

Weight (GCC-250) 27.5 lbs.

Weight (GCC-500) 29.5 lbs.

Dimensions (W x H x D) 17.25 x 4.00 x 14.00 in.

4826 Sterling Drive, Boulder, CO 80301

Speciﬁcations 12

PH: 720.406.8946 [email protected] www.psaudio.com

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Warranty

Owner’s Reference GCC Power Ampliﬁer Series

PS Audio warrants the product designated herein to be free of manufacturing defects in material and workmanship, subject

to the following conditions, for a period of three (3) years from the date of purchase by the original purchaser or date of

shipment to the authorized PS Audio dealer, whichever comes ﬁrst.

TERMS AND

CONDITIONS

This Warranty is subject to the following conditions and limitations: the Warranty is void and inapplicable if the product has

been used or handled other than in accordance with the instructions in the owner’s manual, abused, or misused, damaged

by accident or neglect or in being transported, or the defect is due to the product being repaired or tampered with by

anyone other than PS Audio or an authorized PS Audio repair center.

Conditions

a. The product must be packaged and returned to PS Audio or an authorized PS Audio repair center by the

customer at his or her sole expense in the original packing material. PS Audio will pay return freight of its

choice for original purchasers.

b. Return Authorization Number (RA Number) is required before any product is returned to our factory for any

reason. This number must be visible on the exterior of the shipping container for PS Audio to accept the

return. Units shipped to us without a Return Authorization Number or without a visible RA Number on the

exterior of the shipping container will be returned to the sender, freight collect.

c. RETURNED PRODUCT MUST BE ACCOMPANIED BY A WRITTEN DESCRIPTION OF THE DEFECT.

PS Audio reserves the right to modify the design of any product without obligation to purchasers of previously manufactured

products and to change the prices or speciﬁcations of any product without notice or obligation to any person.

In the event the product fails to meet this Warranty and the above conditions have been met, the purchaser’s sole remedy

under this Limited Warranty shall be to return the product to PS Audio or an authorized PS Audio repair center where the

defect will be repaired without charge for parts or labor.

Remedy

This Warranty is for the beneﬁt of the original purchaser of the covered product if the product has been purchased through

an authorized PS Audio dealer, distributor or agent. PS Audio will not honor this warranty without valid proof of purchase

from an authorized PS Audio dealer, distributor or agent and or a valid serial number as proof the product is a valid PS

Audio product manufactured by PS Audio International.

This warranty does not cover the cost of custom installation, customer instruction, setup adjustments or signal reception

problems.

This warranty does not cover cosmetic damage or any damage due to accident, misuse, abuse, negligence or modiﬁcation

of, or to any part of the Product, without initial express consent from PS Audio. This warranty does not cover damage due

to improper operation or maintenance, connection to improper voltage supply, or attempted repair by anyone other than

a facility authorized by PS Audio to service the Product.

This warranty is invalid if the factory applied serial number has been altered or removed from the Product.

This warranty is invalid if proof of manufacture by PS Audio International cannot be determined to the satisfaction of

the company either by veriﬁcation of a valid serial number and or a valid receipt that includes the serial number from an

authorized PS Audio dealer, distributor or agent.

To locate the servicer or dealer nearest you, or for service assistance or resolution of a service problem, or for product

information or operation, call or email PS Audio.

ANY IMPLIED WARRANTIES RELATING TO THE ABOVE PRODUCT SHALL BE LIMITED TO THE DURATION OF THIS

WARRANTY. THE WARRANTY DOES NOT EXTEND TO ANY INCIDENTAL OR CONSEQUENTIAL COSTS OR DAMAGES

TO THE PURCHASER. Some states do not allow limitations on how long an implied warranty lasts or an exclusion or

limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This

Warranty gives you speciﬁc legal rights, and you may also have other rights that vary from state to state.

Miscellaneous

Inquiries regarding the above Limited Warranty may be sent to the following address: PS Audio International, Inc., 4826

4826 Sterling Drive, Boulder, CO 80301

Warranty 13

PH: 720.406.8946 [email protected] www.psaudio.com

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Warranty

Owner’s Reference GCC Power Ampliﬁer Series

Sterling Drive, Boulder, Colorado 80301 ATTN: Customer Service; Email: [email protected]; Voice 720-406-

8946; FAX: 720-406-8967.

PS Audio has authorized distribution in many countries of the world. In each country, the authorized importing retailer or

distributor has accepted the responsibility for warranty of products sold by that retailer or distributor. Warranty service

should normally be obtained from the importing retailer or distributor from whom you purchased your product. In the

unlikely event of service required beyond the capability of the importer, PS Audio will fulﬁll the conditions of the warranty.

Such product must be returned at the owner’s expense to the PS Audio factory, together with a photocopy of the bill of sale

for that product, a detailed description of the problem, and any information necessary for return shipment.

Outside the US

4826 Sterling Drive, Boulder, CO 80301

Warranty 14

PH: 720.406.8946 [email protected] www.psaudio.com

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Service

Owner’s Reference GCC Power Ampliﬁer Series

In the unlikely event there is a problem with your PS Audio component, please contact your dealer,

distributor, or the PS Audio corporate research center to discuss the problem before you return the

component to our California manufacturing facilities for repair. Products shipped to either the factory

or the corporate research facilities will be refused and returned freight collect if not accompanied by a

PS Audio Service Department issued return authorization number (RA Number).

If you require

service in North

America

Return authorization numbers must be prominently displayed on the outside of the box and an

accompanying letter describing the problem and re-listing the RA number must be inside the box to

qualify for service.

Obtain an RA

number

To contact the PS Audio Service Department:

Contact

information

TELEPHONE

720-406-8946

HOURS Monday-Friday, 9:00 am to 5:00 pm MST

FAX

720-406-8967

E-MAIL

WEBSITE

[email protected]

http://www.psaudio.com

If you are in the United States or Canada use the following procedure:

If you are in the

United States or

Canada

1. Obtain a Return Authorization Number (R/A number) and shipping address from the PS Audio

Service Department.

2. Insure and accept all liability for loss or damage to the product during shipment to the PS Audio

factory and ensure all freight (shipping) charges are prepaid.

The product may also be hand delivered to the California or Colorado facilities if arrangements with

the Service Department have been made in advance. Proof of purchase from an authorized PS Audio

dealer, distributor or agent will be required for warranty validation at the time of hand delivery.

Use the original packaging to ensure the safe transit of the product to the factory, dealer, or distributor.

PS Audio may, at its discretion, return a product in new packaging and bill the owner for such packaging

if the product received by PS Audio was boxed in nonstandard packaging or if the original packaging

was so damaged to the point it was unusable. If PS Audio determines that new packaging is required,

the owner will be notiﬁed before the product is returned.

Use original

packing

To purchase additional packaging, please contact your authorized PS Audio dealer, distributor, or the

PS Audio Service Department for assistance.

If you are outside

the US or Canada

If you are outside the United States or Canada and require service you must contact your country’s

dealer or distributor for instructions. PS Audio warranties its products (see warranty section) worldwide.

Service for PS Audio products outside the United States and Canada is handled through your country’s

distributor or dealer.

4826 Sterling Drive, Boulder, CO 80301

Service 15

PH: 720.406.8946 [email protected] www.psaudio.com

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Service

Owner’s Reference GCC Power Ampliﬁer Series

1. Obtain a Return Authorization Number (R/A number) and shipping address from your dealer or

distributor’s Service Department.

2. Insure and accept all liability for loss or damage to the product during shipment to the dealer or

distributor’s Service Department and ensure all freight (shipping) charges are prepaid.

If you feel your country’s authorized dealer or distributor is either unwilling or unable to service your

PS Audio products, please contact our service department at [email protected] or at the above

contact numbers to discuss the situation.

If you have

problems

Voltage changes to match your country’s voltage and frequency requirements to your PS Audio

product are possible only at the time of purchase. The GCA ampliﬁer series is set to a ﬁxed voltage to

match your country’s requirements and may not be changed.

Voltage changes

Your PS Audio product serial number is:

Please ﬁll in the dealer or distributor’s information from where you originally purchased the unit.

Your serial

number

Your purchase

information

Date of purchase

4826 Sterling Drive, Boulder, CO 80301

Service 16

PH: 720.406.8946 [email protected] www.psaudio.com

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