GCA 100 - PS Audio
Contents
1. ay Owner s Reference PS AUDIO Owner s Reference GCA Power Amplifier Series Instructions for use GCA Power Amp Series Document 15 041 01 1 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Introduction i 2004 PS Audio International Inc All rights reserved Introduction PS AUDIO Owner s Reference GCA Power Amplifier Series Important Safety Read these instructions Instructions Heed all warnings Follow all instructions WARNING TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE Clean only with a dry cloth Do not place flammable material on top of or beneath the component All PS Audio components require adequate ventilation at all times during operation Rack mounting is acceptable where appropriate Do not remove or bypass the ground pin on the end of the AC cord unless absolutely necessary to reduce hum from ground loops of connected equipment This may cause RFI radio frequency interference to be induced into your playback setup All PS products ship with a grounding type plug If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Unplug this apparatus during lightning storms or when unused for long period2. Conditions Remedy Miscellaneous Warranty Owner s Reference GCA 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 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 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 sende
3. connection to improper voltage supply or attempted repair by anyone other than a facility 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Warranty 9 2004 PS Audio International Inc All rights reserved PS AUDIO Outside the US Warranty Owner s Reference GCA Power Amplifier Series 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 v
4. 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 You should expect state of the art performance and sonics from any of the GCA Series power amplifiers These power amplifiers are unmatched by any other power amplifier 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 expect 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Introduction iv 2004 PS Audio International Inc All rights reserved PS AUDIO Location Cautions Isolation Power Cables Conditioners Getting Started Owner s Reference GCA Power Amplifier Series Once your new GCA Series Power Amplifier is unpacked you ll need to find a convenient place to set it There are several ways to mount the GCA Series Power Amplifier on a rack shelf on the floor behind the loudspeakers or on shelf near your preamplifier If the GCA Series Power 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 The GCA Series Power Amplif
5. s Service Department and ensure all freight shipping charges are prepaid If you have If you feel your country s authorized dealer or distributor is either unwilling or unable to service your problems PS Audio products please contact our service department at service psaudio com or at the above contact numbers to discuss the situation Voltage changes 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 Your serial Your PS Audio product serial number is number Please fill in the dealer or distributor s information from where you originally purchased the unit Your purchase information 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com 2004 PS Audio International Inc All rights reserved Service 12
6. the binding post is locked closed To insert a banana style speaker cable connector loosen the outer barrel of the GCA Series Power 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 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 GCA Series Power 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 GCA Series Power Amplifier We do not recommend plugging the GCA Series Power 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 Turn your equipment back on Make sure everything is powered up properly with the GCA Series Power Amplifier between the AC receptacle and your AV equipment Make sure the preamplifier or surround processor that is feeding the GCA Series Power Amplifier is turned on first Then press the front panel PS logo on the GCA Series Power Amplifier to power up the GCA Series Power Amplifier There is a normal 2
7. If it has chances are good you either need to replace your preamplifier with a quieter one or you may need to experiment with better shielded interconnect cables 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 The easiest way to figure out where ground loop problems lie is by the process of elimination You 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Troubleshooting 6 2004 PS Audio International Inc All rights reserved PS AUDIO Finding a ground loop Try a cheater plug Process of elimination It could be the cable TV Blue light is too bright Problems with subwoofers Troublesnooting Owner s Reference GCA Power Amplifier Series 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 power amp your next step will be to reconnect the amp and move further down the chain If you were working with a receiv
8. Inc All rights reserved AU Table Of Contents PS AUDIO Owner s Reference GCA Power Amplifier Series Introduction IV Getting Started 1 Quick Start Guide 2 3 Questions and 4 5 Answers Troubleshooting 6 8 Warranty 9 10 Service 11 12 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Table Of Contens iii 2004 PS Audio International Inc All rights reserved Introduction PS AUDIO Owner s Reference GCA Power Amplifier Series Thank you Thank you for your purchase of the GCA series power amplifier This document covers the three stereo power amplifier models GCA 100 GCA 250 GCA 500 The three models Each of the three stereo amplifier models is a dual mono power amplifier capable of driving nearly every loudspeaker load with ease and beauty GCA 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 Cool and efficient The GCA 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 running highest standards Power ratings 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
9. acitors inside the GCA series power 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 GCA series power amplifier cease to function contact your dealer or PS Audio s service center for help Placement of the GCA series power amplifier is not critical Placement with respect to other equipment can be important In general place the GCA series power amplifier close to the preamplifier 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 preamplifiers surround processors or integrated amplifiers and receiver preamp outputs Isolation through the use of spikes cones or Sorbothane feet is recommended for the GCA series power amplifier if soace 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 amplifier 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 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 sw
10. ary from state to state Inquiries regarding the above Limited Warranty may be sent to the following address PS Audio International Inc 4826 Sterling Drive Boulder Colorado 80301 ATTN Customer Service Email customerservice psaudio com 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 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Warranty 10 2004 PS Audio International Inc All rights reserved PS AUDIO If you require service in North America Obtain an RA number Contact information If you are in the United States or Canada Use original packing If you are outside the US or Canada Service Owner s Reference GCA Power Amplifier Series In the unlikely even
11. country s voltage Do not use the GCA series power amplifier on a voltage higher than it is rated for For instance do not take a 120 volt rated GCA series power 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 GCA series power amplifier at a voltage other than the voltage it was designed for contact your dealer distributor or the factory If the GCA series power amplifier protection circuitry is activated the amplifier will immediately shut off Check for the source of the problem then use the front panel logo switch to restart the amp The GCA series power 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 The GCA series power amplifier can be remotely activated by a DC control voltage Using a small mini jack you can turn the GCA series power amplifier on and off with a 12 volt trigger For instance the PS Audio GCP preamplifier has a trigger output jack When connected to the GCA series power amplifier trigger input jack located on the lower left hand corner of the GCA series power amplifier s rear panel as you face the panel the preamplifier will now turn the GCA series power amplifier on and off with a single push of the preamplifier s power button 4826 Sterling D
12. ector With a source connected to the preamp and the preamp volume turned up click the rear mounted input selector on the GCA Series Power Amplifier to both positions and see if this solves the problem If not place the switch to the proper position and replace the interconnects between the preamp and power amp At last resort if you suspect an input problem try another preamp or plug the output of your CD player or DVD player directly into the GCA Series Power Amplifier Be careful to choose a CD or DVD with relatively soft music because this will play very loudly If you suspect an output problem use the same technique of placing your ear very close to the speaker s tweeter while the GCA Series Power 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 there is no sound and you are convinced the GCA Series Power Amplifier has power and its front panel light is lit contact your dealer distributor or PS Audio for further assistance If there is an excessive amount of hiss or noise from the loudspeaker it is probably not from the GCA Series Power Amplifier as this amp has extremely low self noise Turn the amp off remove the interconnect cables from the GCA Series Power Amplifier and then turn the amplifier back on Listen once again to see if the noise has been diminished
13. elp matters it may be necessary to isolate the cable connection CATV with an isolation transformer 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 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 many subwoofers it will be fine Some like the REL subwoofers and the Carver Sunfire type of subwoofers will not work properly when connected to the GCC Series P
14. er or an integrated amplifier you will need to jump to step 4 If you have a preamp or processor that is feeding the power amp your next step would be to disconnect all inputs to the preamplifier or processor Once these are disconnected and the preamp or processor is connected only to the power amplifier turn the system on and again listen for hum Should the hum now appear it is a problem with your preamp or processor or their interaction with the power amp Before returning the preamp or processor to the manufacturer try a cheater plug to break a ground loop Cheater plugs are simple devices that convert a three prong AC plug into a two prong AC plug and in the act of converting three prongs to two prongs they disconnect the ground from the wall socket Try one of these on the preamp or the power amp or both If you determine that there is still no hum present when the preamp processor or receiver is connected with no inputs then selectively begin plugging in your various inputs one at a time After each connection check for hum until you discover the humming culprit 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 VCR that is causing the hum buzz to occur and using a cheater plug or removing the ground pin on a PS xStream Power Cable doesn t h
15. ier can benefit from aftermarket isolation devices such as cones spikes and Sorbothane pads Once you have chosen the location for the GCA Series Power 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 We strongly recommend the use of a PS Audio xStream Power AC cable and a PS Power Port AC receptacle to feed the GCA Series Power 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 life and dynamics If you do not use PS Audio power conditioning equipment you would be advised to plug the GCA Power amplifier directly into the AC wall receptacle 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Getting Started 1 2004 PS Audio International Inc All rights reserved PS AUDIO Power down first Connect the inputs Balanced inputs RCA inputs Rear switch Speaker Cables Quick Start G
16. itch provides medium brightness the lower position shuts the light off The front panel PS logo is the power button Press the blue PS logo on the GCA series power 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 GCA series power amplifier is on or off Yes cables make a difference It is important to use the best power cables interconnects and speaker cables when operating the GCA series power amplifier You can power nearly every loudspeaker made with a GCA series power 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 GCA series power 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 GCA series power 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Questions and Answers 4 2004 PS Audio International Inc All rights reserved PS AUDIO What voltages can the amp run on Protection circuitry Does the amp require ventilation How does the DC trigger work Questions And Answers Owner s Reference GCA Power Amplifier Series amplifier and the next higher wattage model should be considered The GCA series power amplifier is specific to your
17. ker Carefully observe the polarity The plus or red terminal of the GCA Series Power Amplifier must eventually be tied to the plus or red terminal of your loudspeaker The GCA Series Power Amplifier is a non inverting amplifier design meaning it is in phase with the input signal Most subwoofers have low level inputs only as in an RCA or XLR connector 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 whcih 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 These binding posts on the rear panel of the GCA Series Power 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 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 GCA Series Power Amplifier s binding post while
18. n 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 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 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 PH 720 406 8946 service psaudio com www psaudio com Service 11 2004 PS Audio International Inc All rights reserved Service PS AUDIO Owner s Reference GCA 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
19. ower 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 4826 Sterling Drive Boulder CO 80301 Troubleshooting 7 PH 720 406 8946 service psaudio com www psaudio com 2004 PS Audio International Inc All rights reserved Troublesnooting Owner s Reference GCA Power Amplifier Series PS AUDIO If the amp shuts If the GCC Series Power Amplifier shuts off when playing music there are several possibilities If the down while music plays quite loudly but shuts off on the most explosive parts of the music of video soundtrack then the GCC Series 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 playing music lf the amplifier shuts down with very little volume then check the speaker cable connections The GCC Series 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 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com 2004 PS Audio International Inc All rights reserved Troubleshooting 8 PS AUDIO TERMS AND CONDITIONS
20. r 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 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
21. rd 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 Amplifier 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 Amplifier 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 PH 720 406 8946 service psaudio com www psaudio com Quick Start Guide 2 2004 PS Audio International Inc All rights reserved PS AUDIO Check for porper polarity Be careful when connecting a subwoofer Locking binding posts Connecting a banana style Do not ground the outputs Plug it intoa power source Push the front panel logo to turn it on Quick Start Guide Owner s Reference GCA Power Amplifier Series 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 GCA Series Power Amplifier to the plus and minus of your spea
22. rive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Questions and Answers 5 2004 PS Audio International Inc All rights reserved PS AUDIO No sound comes out of the amp Check the input Check the rear input selector first Try another source If you suspect an output problem If there is a lot of hiss in your speaker If you have hum or buzz Troublesnooting Owner s Reference GCA Power Amplifier Series If no sound comes out of the GCA Series Power Amplifier there are several areas to check Either you are not getting an audio signal into the Series Power Amplifier you are not properly connected to the loudspeakers so the audio can get out of the Series Power Amplifier there is no power from the AC socket or you have the DC trigger jack connected without an appropriate voltage to turn it on It is obviously important that the GCA Series Power Amplifier receive a high level signal from the preamplifier surround processor or whatever source 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 suspect an input problem the first thing to check is the rear panel switch The switch on the rear of the GCA Series Power Amplifier is an input sel
23. s of time When making connections to this or any other component make sure all components are off Turn off all systems power before connecting the PS Audio component to any other component Make sure all cable terminations are of the highest quality There are no user serviceable fuses inside this product THERE ARE NO USER SERVICEABLE PARTS INSIDE ANY PS AUDIO PRODUCT REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL Please contact your authorized dealer distributor or PS Audio if you have any questions not addressed in this reference manual This product is manufactured in the United States of America PS Audio is a registered trademark of PS Audio International Inc and is restricted for use by PS Audio International Inc its subsidiaries and authorized agents and servicing instructions are risk of electric shock to the 5 with the don ggg persons WARNING To reduce the risk of electric shock do not remove cover or back ppanc No user servicoabie parts inside Refer servicing to quatitied service personnel The exclamation point within a The lightning flash with arrow WARNING triangle is intended to tell the Harel ie oil aange is hii RISK OF ELECTRIC SHOCK user that important operatin intended to tell the user that 9 2 parts inside the product are a DO NOT OPEN 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Introduction ii 2004 PS Audio International
24. second delay for the amplifier once powered up At this point you should be ready to enjoy the benefits of the GCA Series Power Amplifier and enjoy 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 service psaudio com www psaudio com Quick Start Guide 3 2004 PS Audio International Inc All rights reserved PS AUDIO Should the unit be on all the time Are there any internal fuses Placement Isolation Front panel blue light Front panel power button Do cables make a difference What speakers can use Questions And Answers Owner s Reference GCA Power Amplifier Series The GCA Series Power 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 There is no harm in leaving the unit on at all times as the lifespan of the GCA series power 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 GCA series power amplifier at all times There are no user replaceable internal fuses inside the GCA series power amplifier There is an internal fuse that should only be replaced by an authorized service center if needed The components inside the GCA series power amplifier have lethal voltages when powered and even when un powered Cap
25. t 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 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 To contact the PS Audio Service Department TELEPHONE 720 406 8946 HOURS M F 9 00 am to 5 00 pm MST FAX 720 406 8967 E MAIL service psaudio com WEBSITE http www psaudio com If you are in the United States or Canada use the following procedure 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 validatio
26. uide Owner s Reference GCA Power Amplifier Series Once you have decided on the location and chosen the appropriate power cables you are ready to install the GCA Series Power Amplifier We would recommend that you power the entire system down before attempting to insert the GCA Series Power Amplifier Insert the GCA Series Power Amplifier into the system Connect the inputs of the GCA Series Power Amplifier to the output of your preamplifier surround processor or preamp outputs of a receiver or integrated amplifier 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 Amplifier 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 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 preamplifiers surround processors receivers and integrated amplifiers have only this standa
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