Sunfire Signature Stereo Amplifier User Manual
Contents
1. Theater Grand Amplifier TGA 7401 TGA 7401 230 and TGA 7201 TGA 7201 230 User s Manual j CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and main tenance servicing instructions in the literature accompanying the appliance Important Safety Instructions 1 Read Instructions 2 Keep these Instructions 3 Heed all Warnings 4 Follow all Instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 Do not install near any heat sourc es such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 8 Unplug this apparatus during light ning storms or when unused for long periods of time 9 Refer all servicing to qualified ser vice personnel Servicing is required when the apparatus has been dam aged in any way such as a power supply cord or plug is damaged liq2. From Preamplifier main RCA outputs To Amplifier RCA inputs D D D gt O oO aG X SUR Line level audio signals From Amplifier Front L R RCA To Amplifier Rear L R RCA inputs Biamping with an external crossover If you have an external active crossover you can greatly increase the efficiency of your system The crossover will split the preamplifier output signals into two frequency ranges You can connect the crossover s low frequency outputs to the ampli fier s rear channel inputs and the crossover s higher frequency outputs to the amplifier s front channel inputs This is an efficient system because the channels only amplify signals with in the frequency range of the speaker element they are driving Little power is wasted Make sure that the crossover point of your active crossover is adjusted to match the crossover point of your speakers Consult your speaker and crossover owner s manuals Sunfire User s Manual Speaker level audio outputs T From Amplifier outputs u RIGHT m To Speaker input posts CURRENT meres oo LEFT F SOURCE P ER TWEETER UDSPEA RENT KERS SOURCE UNBALANCED PREAMP OUTPUTS R L FULL FREQ RANGE ACTIVE EXTERNAL CROSSOVER FREQ LOW FRE HIGH FREQ L aN zj du fs DE SS Q SU K CEA D oo D WO a pe acte RIG
3. The TGA 7401 can produce 400 watts rms per channel into 8 ohms and 800 watts rms into 4 ohms The TGA 7201 can produce 200 watts rms per channel into 8 ohms and 400 waits rms into 4 ohms The big breakthrough is the uncanny tracking downconverter which uses 18 Herculean Mosfets in the TGA 7401 and the TGA 7201 This allows the amplifier to produce phenominal power output without the heat generated by conventional designs The circuit boards are heavy glass epoxy double sided with a Faraday shield on the back side All resistors in the signal path are 1 tolerance metal film Critical capacitors are film devices with high dielectric strength and ultra low absorption characteristics An enormous power source built around a massive power transformer provides the ultimate muscle for limitless dynamics We could go on and on but here s the best part we ve included two kinds of outputs on the front left and front right channels 1 a standard voltage source i e near zero impedance output for all typical applications and 2 a higher impedance current source output which many prefer for electrostatic planar mag netic or ribbon speakers such as our Cinema Ribbon line Or you can biwire your system with the voltage source driving the woofer s and the current source driving the upper part of the system In many cases this provides by far the best possible interface between the amplifier and the speaker system Whichever way you
4. a speaker to be out of phase Turn on and turn off thumps Plug the amplifier into an unswitched AC outlet and use the AUTO ON feature This will allow the amplifier to turn on and off silently Current source outputs not working If you are biamping or biwiring make sure that the current source fuses have not blown 17 APPENDIX Specifications TGA 7401 Power output 400 watts continuous per chan nel into eight ohms at 1 kHz with no more than 0 5 T H D Power at clipping min 800 watts per channel into four ohms Hum and Noise 118 dB A Weighted Maximum output current 120 amps peak to peak per ch Maximum output voltage 56 6 Vrms Output impedance Front Left and Right channels Voltage source Approx zero ohms Current source Approx one ohm RCA Input impedance 24 kQ Input sensitivity for rated output Unbalanced 1 9 Vrms Balanced 0 95 Vrms XLR Input impedance 10 kQ each leg balanced to ground Female XLR Pin 1 is ground Pin 2 is positive hot Pin 3 is negative cold Damping Factor 150 1 2 18 12 VDC Trigger Inputs Input voltage range 5 18 VDC Impedance approx 600 Q 20 mA 12 V Removable terminal block and dual 1 8 minijacks for daisy chain ing Power Consumption 45 W At idle 580 W Typical 1 8th power 1440 W Continuous power Dimensions and Weight 17 0 inches wide 5 75 inches high including feet 16 7 inches deep to tips
5. e Check that your preamplifier or source is running the correct sur round sound mode Maybe it is set for stereo when you were expect ing 5 1 surround sound e Check in case any missing chan nels have been turned off in a preamplifier setup menu For example the center amplifier channel will not receive a signal if the preamplifier has been set to Phantom e The Auto on off switch might be in the off position e One of the fuses for the current source outputs may have blown 16 The amplifier shuts down often or the line fuse blows often e Check that the positive and nega tive speaker wires are not shorted together e Make sure that no speakers are shorted internally If you have an ohm meter disconnect the speaker wires and measure the resistance between the speaker s positive and negative terminals If the read ing is less than 2 ohms the speak ers may have an internal short Measure all speakers and check their impedance specifications e f you have connected speakers in Parallel the overall impedance may be too low It is recommended that you rearrange the speakers in Series to increase the overall impedance thus taking some of the load off the amplifier e Make sure that the amplifier has good ventilation and is not overheating If the amplifier is in a closed rack open up the rear panel or use a quiet fan for im proved ventilation A hum is heard in your speakers This problem is
6. Service Assistance If your Sunfire product ever requires service write to us or call Sunfire 1300 E New Circle Road Suite 150 Lexington KY 40505 Phone 859 514 8290 Fax 859 269 7972 You will be directed to an au thorized Sunfire Service Station or receive instructions to ship the unit to the factory Please save the original shipping carton and packing materials in case shipping is required Please do not ship Parcel Post NOTE Before sending in your unit for repair you must call Sunfire for return authorization Include a complete description of the problem indicating how you have it connected the associated equip ment in your system and a copy of your purchase receipt Initial shipping costs are not paid by Sunfire return ground shipping costs will be prepaid if repairs were covered by the scope of this Warranty According to EN 45014 Manufacturer s name Sunfire Manufacturer s address 1300 E New Circle Road Suite 150 Lexington KY 40505 USA Declares that the products listed on this declaration Product name s Theater Grand Amplifier Product Model Number s TGA 7401 230 TGA 7201 230 Conform to the following product specifications EN 60065 2002 A1 2006 IEC 60065 2001 A1 2005 EMC EN 55013 2001 A1 2003 EN 55020 2002 A1 2003 A2 2005 EN 61000 3 2 2000 A2 2005 EN 61000 3 3 1995 A1 2001 Safety The product herewith complies with the provisions of the following Europ
7. but not manufactured by Sunfire the warranty obligations of Sunfire shall in all respects conform and be limited Sunfire User s Manual to the warranty actually extended to Sunfire by its supplier The foregoing warranties do not cover reimburse ment for labor transportation re moval installation or other expenses which may be incurred in connection with repair or replacement Except as may be expressly pro vided and authorized in writing by Sunfire Sunfire shall not be subject to any other obligations or liabilities whatsoever with respect to equipment manufactured by Sunfire or services rendered by Sunfire THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESSED AND IMPLIED WARRANTIES EXCEPT WARRANTIES OF TITLE INCLUD ING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABIL ITY AND FITNESS FOR A PARTICU LAR PURPOSE ATTENTION TO OUR VALUED CONSUMERS To insure that consumers obtain quality pre sale and after sale sup port and service Sunfire products are sold exclusively through autho rized dealers Sunfire products are not sold online The warranties on Sunfire products are NOT VALID if the products have been purchased from an unauthorized dealer or an online E tailer To determine if your Sunfire re seller is authorized please call Sunfire at 859 514 8290 We suggest that you read the Limited Warranty completely to fully under stand your Warranty Service cover age
8. decide to hook up the amplifier it will create a multilayered soundstage that is deep wide three dimensional and utterly believable The optional current source output can coax forth a sensuous delicately detailed musical voice long associated with low powered classic tube amplifiers The current source characteristic of vacuum tubes is the dominant factor in the sound stage delivery of classic tube amplifiers 4 Sunfire User s Manual CHAPTER 1 Theater Grand Amplifier Editions The Theater Grand seven chan TGA 7401 and TGA 7401 230 nel power amplifier is available in two editions 400 Watts per channel into 8 O e TGA 7401 800 Watts per channel into 4 Q e TGA 7201 The TGA 7401 has twice the power Safe Theater Grand Amplifier output of the TGA 7201 a This manual uses illustrations of the TGA 7401 The operational details features and connections to loud speakers and preamplifiers are the same for both models The TGA 7401 230 and TGA 7201 230 are export models set for 220 TGA 7201 and TGA 7201 230 240 VAC operation Their operation Q is identical to the TGA 7401 and the 200 Watts Pel phannal imo TGA 7201 amplifiers 400 Watts per channel into 4 Q 5 Sunfire User s Manual CHAPTER 1 Unpacking Your Sunfire Amplifier should reach you in perfect condition If you do notice any shipping damage please contact your Sunfire Dealer immedi ately Genily lift out the unit and remove all
9. of con nectors Weight 40 lbs TGA 7201 Power output 200 watts continuous per chan nel into eight ohms at 1 kHz with no more than 0 5 T H D Power at clipping min 400 watts per channel into four ohms Hum and Noise 115 dB A Weighted Maximum output current 80 amperes peak to peak per channel Maximum output voltage 40 Vrms Output impedance Front Left and Right channels Voltage source Approx zero ohms Current source Approx one ohm RCA Input impedance 24 kQ Input sensitivity for rated output Unbalanced 1 34 Vrms Balanced 0 67 Vrms XLR Input impedance 10 kQ each leg balanced to ground Female XLR 1 Pin 1 is ground Pin 2 is positive hot C Pin 3 is negative cold gt Damping Factor 150 12 VDC Trigger Inputs Input voltage range 5 18 VDC Impedance approx 600 Q 20 mA 12 V Removable terminal block and dual 1 8 minijacks for daisy chain ing Power Consumption 45W At idle 280W Typical 1 8th power 1440W Continuous power Dimensions and Weight 17 0 inches wide 5 75 inches high including feet 16 7 inches deep to tips of con nectors Weight 34 Ibs 2008 Sunfire a division of Elan Home Systems LLC All rights reserved Sunfire reserves the right to improve its products at any time Therefore specifications are subject to change without notice Manual part 913 153 00 Rev A Sunfire User s Manual APPENDIX Sunfire Limited War
10. position the amplifier is always on regard less of input signals or 12 VDC trigger In the power off position the amplifier is always off regard less of input signals or 12 VDC trigger See page 7 for details of the front panel LED status 7 6 2 12 VDC Trigger Input Although the AUTO ON signal sensing turn on is adequate for most installations the 12 VDC trigger inputs are offered as an optional way to turn on the amplifier The Sunfire Theater Grand Il III IV TGP 5 and TGP 401 Processors have a compatible 12 VDC trigger output see page 11 This can be used to automatically turn on the amplifier when the processor is turned on 1 8 mono mini jacks are provided for ease of installation along with a terminal strip to allow more flexibility for custom wired installations The terminal strip and both mini jacks are internally connected in parallel allow ing daisy chaining to turn on multiple amplifiers The supplied 1 8 mini plug mono cable can be used to connect the trigger output of the Theater Grand Processor to the amplifier i Do not exceed 18 VDC on this input CAUTION Do not connect AC line voltage to this input 6 676 8 9 10 The voltage range for the trigger input is from 5 to 18 VDC The input impedance is approximately 600 Q 20 mA 12V 3 RCA Inputs Your Theater Grand Amplifier has three sets of inputs for each of the seven channels Two are unbalanced RCA in
11. 20 V model 8 amps for the 230 V model Care If you need to clean the front sur face first turn off the power and then use a dry soft cloth rubbing with the grain Connection Tips Before setting up your new system please consider the following A Always make sure that your components are all unplugged before making or changing connections e Make sure that the power cords of all your components are attached to the same outlet or at least to the same circuit This will reduce the possibility of a ground loop in the system A e Use the XLR inputs if your preamplifier has XLR outputs These balanced connections provide superior noise rejec tion Make sure that the total cur rent draw does not exceed the current rating of your AC outlet or power strip e Whenever possible keep the power cords away from the signal cables or speaker wires to prevent any hum or audio interference being heard in the speakers e Choose reliable hookup cables also called patch cords or RCA cables They should be fully shielded and as short as pos sible for the job e Some patch cords can be a very tight fit and there is usu ally a preferred method of get ting them off Some have to be removed with a twisting action Be gentle or you may damage the jacks of the amplifier or your other components e Some special patch cords can only be hooked up in one direction these are usually marked with arrows e Itis
12. HT Fos TWEETER RIGHT to pa CURRENT WOOFER Woon LEFT SOURCE o R TWEETER UDSPEAKER RRENT S SOUR 13 CE CHAPTER 2 Biwiring Connections If your speakers can be biwired or biamped they will have completely separate input terminals for the woofer section and the upper range See the speaker diagram and discussion on page 12 Make sure that any bridge clips between the woofer and upper range posts are removed from the speak ers when you want to biamp or biwire them Consult your speaker owner s manual for details The front channels of the Theater Grand Amplifier each have two pairs of outputs which can be used to biwire your speakers The idea is to use the voltage source to drive the woofer and the current source to drive the upper range This will offer improved performance and still allow you to con nect seven speakers for your Home Theater system This page shows the input and out put connections for Biwiring a left front speaker and a right front speaker The remaining speaker connections have been omitted from this drawing for clarity They can be connected as shown on pages 10 and 11 Output connections e Connect the amplifier s right front voltage source output to the right speaker s woofer input terminals Connect the amplifier s right front current source output to the right speaker s upper range input terminals e Connect the amplifier s left front voltage source output to the lef
13. U DSPEAKERS L LB Speaker level audio outputs From Amplifier outputs To Speaker input posts The 12 VDC trigger connection shown can be used to turn the ampli fier on when the preamplifier turns on When the AUTO ON switch is set to AUTO ON the amplifier will automatically turn on when either a 12V trigger voltage or an audio signal from the preamp is received REAL TIME SIGNAL SENSING 11 Sunfire User s Manual CHAPTER 2 Biamping For biamp capable speakers such The following connections are as Sunfire s Cinema Ribbon line shown in the diagram on the top half the Theater Grand Amplifier can be of the next page configured to provide a very powerful 7 system Output connections e Connect the amplifier s right rear output to the right speak er s woofer input terminals Connect the amplifier s right front current source output to the right speaker s upper range input terminals If you prefer Inputs you could use the right front voltage source instead N f e Connect the amplifier s left eee rear output to the left speaker s woofer input terminals NS Z Connect the amplifier s left Woofer front current source output to the left soeaker s upper range input terminals If you prefer you could use the left front A speaker which can be biamped or voltage source instead biwired will have two sets of binding posts Sometimes these posts are Input connections joined
14. dio lectrique dict par les ministere des communications du Canada WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INTRO DUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU AU FOND Contents Safety Instructions Chapter 1 Introduction Theater Grand Amplifier Editions Unpacking and Installation Front Panel Features Rear Panel Features Chapter 2 System Configurations Appendix Series and Parallel Troubleshooting Guide Specifications Limited Warranty Service Assistance Sunfire User s Manual Please read the Safety Instructions carefully before connecting and using your Sunfire Amplifier Chapter 1 is a general introduction to the features details and installa tion of your amplifier Chapter 2 shows some typical con nections to a preamplifier and speakers The Appendix shows some addition al information including a trouble shooting guide the Warranty and service assistance details To find out more about this and other Sunfire products please visit our website www sunfire com Introduction Thank you for purchasing a Sunfire Theater Grand Amplifier We hope you enjoy it and the music it makes as much as we have enjoyed creating it for you
15. ean Directives and carries the CE mark accordingly Low voltage directive 2006 95 EC Electromagnetic Compatibility Directive 2004 108 EC Supplementary information The product was tested in a typical configuration Mark Weisenberg General Manager Sunfire Theater Grand Amplifier TGA 7401 TGA 7401 230 and TGA 7201 TGA 7201 230 Sunfire 1300 E New Circle Road Phone 859 514 8290 Suite 150 Fax 859 269 7972 Lexington KY 40505 www sunfire com Manual part number 913 153 00 Rev A
16. ier Sensitive preamp circuits may pick up hum from the amplifier trans former s magnetic field Try moving your components further away from the TV especially if you ever notice the screen has changed color in the area closest to the component e If you have very high efficiency speakers these may show up noise which other speakers may not e If you are still having a problem remember that Sunfire s dealers and technical support staff will as sist you Make a list of the things you have tried Sunfire User s Manual Poor bass performance Make sure that your preamp does not have the bass level turned down Many surround preamplifiers have controls which can direct all the bass to subwoofers or let your main speakers play the full range Make sure that the preamplifier has been correctly set If you are not using a subwoofer set the speaker options to LARGE and the subwoofer to OFF Check that the speaker wires have been connected correctly Make sure that the positive of each speaker connects to a positive out put of the amplifier and the neg ative of each speaker connects to a negative output If one speaker is wired incorrectly then it will be out of phase with the others resulting in poor bass performance If you have connected the amplifier using the XLR inputs make sure that the XLR cables are wired cor rectly If one has the hot and cold reversed then this will also cause
17. l im pedance is lower compared to driving a single speaker and the amplifier must produce more current to drive them Ideally the total average impedance should be no less than 4 ohms per channel You must make sure that the lower impedance does not cause the amplifier to over heat shut down blow the line fuse or pop your circuit break er If this happens you should reduce the number of speakers wired in parallel rewire them in series or use more than one power amplifier 15 APPENDIX Troubleshooting Guide The Sunfire Amplifier is expertly designed and built to provide years of trouble free performance Most prob lems that occur can usually be solved by checking your setup or making sure that the audio and video com ponents connected to your processor are on and fully operational The following information will help you deal with common setup problems you may experience during normal use of your unit If the problems still persist please contact your Sunfire Dealer for assistance No sound from one or more speakers e Speaker cables may have come undone Turn off your system and check the cables and tighten the amplifier and speaker binding posts e Broken audio cable e The preamplifier volume level is low for the channels concerned Recheck the preamplifier calibra tion procedure e A preamplifier Mute switch may be on or an external processor loop or a tape monitor loop is engaged
18. ll other servicing should be referred to qualified service personnel PORTABLE CART WARNING Carts and stands The Component should be used only with a cart or stand that is recommended by the manufacturer A Component and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the Component and cart combination to overturn Sunfire User s Manual 16 To prevent electric shock do not use this polarized plug with an exten sion cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure Pour pr evenir les chocs lectriques ne pas utiliser cette fiche polarise avec un prolongateur un prise de courant ou une autre sortie de cou rant sauf si les lames peuvent tre ins r es a fond sans laisser aucune parllle a d couvert 17 Grounding or Polarization Precautions should be taken so that the grounding or polarization means of the Component is not defeated This apparatus does not exceed the Class A Class B whichever is ap plicable limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Ca nadian Department of Communications ATTENTION Le pr sent appar eil num rique n met pas de bruits radio lectriques d passant las limites applicables aux appareils num riques de class A de class B selon le cas prescrites dans le r glement sur le brouillage ra
19. more than likely caused by a ground loop in your sys tem rather than a fault in the amplifier Follow these steps to isolate the main cause of the hum there may even be more than one e If your preamplifier has XLR bal anced outputs use them because they offer greater immunity to noise fields e Remember to unplug all compo nents in your system including the amplifier before disconnecting or connecting any cables during troubleshooting e Try to have all of your equipment on the same electrical outlet or circuit Group all the low power components preamp CD player DVD etc on a single outlet or power strip This is provided that the overall current draw from your equipment does not exceed the rating of the outlet or breaker Disconnect all cables which come from outside the room and check if the hum goes away This in cludes such connections as cable TV satellite TV or roof top an tennas Make sure that they are disconnected where they first enter the room so they are making no connection to the preamplifier or the TV or any other component If the hum is caused by the cable TV line then you will need a ground loop isolator This is an inexpen sive device fitted in line with the coaxial cable feed Contact your cable company or your Sunfire Dealer for assistance e Disconnect all connections from the preamplifier to your TV VCR or DVD e As atest disconnect any other component which ha
20. put posts of your speakers The Current Source can be used instead as shown on the next page 10 Speaker level audio outputs From Amplifier outputs To Speaker input posts Make sure that the posi tive speaker wires do not touch the negative speaker wires or any chassis metal This will cause a short circuit and may damage your amplifier or speakers R Right Channel C Center Channel L Left Channel RS Right Surround rear Channel LS Left Surround rear Channel RB Right Surround Back Channel LB Left Surround Back Channel Sunfire User s Manual CHAPTER 2 Balanced Connections If your preamplifier has XLR outputs it can be connected to the XLR inputs as shown This example shows the con nections to the Sunfire Theater Grand Processor TGP 401 This also shows the Current Source output connections to the front left and right speaker inputs The Voltage Source outputs can be used instead as shown on the previous page Sunfire Theater Grand Processor TGP 401 12 VDC Trigger signal From Preamplifier trigger outputs To Amplifier trigger inputs TO suBWo OF BALANCED INPUT Zz Balanced line level audio signals From Preamplifier XLR outputs To Amplifier XLR inputs C LO
21. puts and one is a balanced XLR type The two RCA inputs for each chan nel are joined together internally and either one can be connected to the corresponding output of your pream plifier The second RCA input can be used as a daisy chaining output sending the preamplifier output signal to an other channel or to another amplifier Sunfire User s Manual CHAPTER 1 4 XLR Inputs If your preamplifier has XLR outputs connect them to these XLR inputs These balanced connections offer superior noise rejection com pared to the unbalanced RCA inputs particularly for long cable runs The female XLR inputs are wired as follows Pin 1 is ground Pin 2 is positive hot 3 Pin 3 is negative cold 2 Balanced connections pass the input signal along two conductors If there is any external noise and inter ference passing into the audio lines both conductors will receive the same amount of noise This noise is then rejected in the balanced input stage of the Theater Grand Amplifier 5 Current Source Outputs and 6 Voltage Source Outputs The front left and front right chan nels each have a Voltage Source output and a Current Source output The remaining channels have Voltage Source outputs only The Voltage Source outputs have a source impedance of approximately zero ohms The Current Source outputs have a source impedance of approximately one ohm The top post of each binding post pair is the posi
22. ranty Sunfire a division of Elan Home Systems LLC is proud of its products which have been built with care using advanced technology and premium component parts Your unit has been crafted to perform properly for many years Sunfire offers the following Warranty to you the owner of a new Sunfire product Sunfire warrants the TGA 7401 AND TGA 7201 to be free from de fects in materials and workmanship for the period of FIVE years from the date of purchase If within the applica ble warranty period above purchaser discovers such item was not as war ranted above and promptly notifies Sunfire in writing Sunfire shall repair or replace the items at the company s option This warranty shall not apply a to equipment not manufactured by Sunfire b to equipment which shall have been installed by other than an authorized Sunfire installer c to installed equipment which is not installed to Sunfire s speci fications d to equipment which shall have been repaired or altered by others than Sunfire e to equipment which shall have been subjected to negligence accident or damage by cir cumstances beyond Sunfire s control including but not limit ed to lightning flood electrical surge tornado earthquake or any other catastrophic events beyond Sunfire s control or to improper operation mainte nance or storage or to other than normal use of service With respect to equipment sold by
23. s a grounded power cord NOTE Never remove the A ground pin from any power cords This is very dan gerous e lf the hum persists disconnect all the source components one at a time from the back of the preampli fier until you identify the problem Ground loop isolators are available for audio lines and video You can ask your Sunfire Dealer for assis tance e Try moving the speaker cables away from any power cords Try just one speaker connecting it to each amplifier channel and see if one channel is bad Sunfire User s Manual APPENDIX e Check that the interconnect cables to the amplifier do not have any broken connections Other causes of noise e Speaker noise may also be caused by interference or noise on your AC line Make sure there are no large appliances sharing the line or halogen lamps or lamps with dimmer controls e Try connecting your system to an other AC socket on a separate line e Keep power cords away from au dio cables e Do not place the preamplifier di rectly on top of the amplifier e Ifthe hum is heard from within the amplifier and not through the speakers this may also be caused by interference on the AC or DC lines The power transformer may turn this interference into an audible noise Internal hum can be made worse by a shelf or cabinet resonating so try moving the am plifier to another shelf e Try moving your preamplifier further away from your amplif
24. t of the first speaker The negative input post of the first speaker connects to the positive input post of the sec ond speaker The negative input post of the second speaker connects to the negative output terminal of the right channel The total impedance of speak ers in series is found by adding their impedances together For example two four ohm speak ers in series is an eight ohm load Series connections are easier on the amplifier than parallel connections as the total imped ance is higher than driving a single speaker Parallel For example if you want to parallel connect two speakers to the front right channel of the amplifier Amplifier Outputs U The positive output terminal of the right channel connects to the positive input post of the first speaker and to the positive post of the second speaker The negative output terminal of the right channel connects to the negative input post of the first speaker and to the negative post of the second speaker The total impedance of equal speakers in parallel is found by dividing the impedance of one speaker by the number of speakers For example two eight ohm speakers in parallel is a four ohm load eight ohms divided by two four eight ohm speakers in parallel is a two ohm load eight ohms divided by four Parallel connections are harder on the amplifier than series connections as the tota
25. t soeaker s woofer input terminals Connect the ampli fier s left front current source output to the left speaker s upper range input terminals 14 UNBALANCED PREAMP OUTPUTS L R Line level audio signals From Preamplifier main RCA outputs To Amplifier line level inputs W oe g SURROUND 6 2 o KP M a SEER omen ep RIGHT a TWEETER al Leer CURRENT WOOFER EEN a SUAREN VOLTAGE TWEETER Wea SOURCE CURRENT Worm RCE S LOUDSPEAKERS Hii Speaker level audio outputs From Amplifier outputs To Speaker input posts Input connections Connect your preamplifier s outputs to the corresponding input jacks on the Theater Grand Amplifier Sunfire User s Manual APPENDIX Series and Parallel speaker connections The connection of more than one speaker per channel will tend to degrade the speaker s frequency response and may make the amplifier run hot For the best results use one speaker per channel If you do want to connect more than one speaker per channel there are two main ways Series or Parallel Series For example if you want to series connect two speakers to the front right channel of the amplifier Amplifier Outputs Sunfire User s Manual The positive output terminal of the right channel connects to the positive input pos
26. the packing material and acces sories It is important to save all the packing materials and the box in case your amplifier ever needs to be moved or shipped for repair Make sure that you keep your sales receipt It is the only way to establish the duration of your Limited Warranty and it may come in useful for insur ance purposes Please take a moment to fill out and mail the Sunfire Customer Response card Also read the serial number located on the rear panel or the under side of the chassis and record it here Serial Purchased at Installation Read and follow all safety instruc tions shown on pages 2 and 3 Observe the following precautions when choosing a location for your Theater Grand Amplifier e Protect it from prolonged exposure to direct sunlight and other direct sources of heat such as heating vents and radiators Do not expose the unit to rain or moisture If fluid or a foreign object should enter the unit immediately unplug the power cord and contact your Sunfire Dealer e Avoid excessive exposure to extreme cold or dust e Do not place heavy objects on top of the unit Allow adequate ventilation around the amplifier do not cover the ventilation slots AC Power Considerations Ensure that the unit is plugged into an outlet capable of supplying the cor rect voltage specified for your model The outlet should be capable of sup plying 15 amps for the 1
27. tive output and con nects to the positive post of your speaker The bottom post of each pair is the negative and connects to the negative post of your speaker The posts can accept bare wire spade terminals and dual or single banana connectors Sunfire User s Manual According to your musical taste you may select the Current Source for driving electrostatic planar magnetic or ribbon speakers For cone based systems use either For a biwired sys tem use the Current Source for mid range and treble drivers and use the Voltage Source for the subwoofer s These are suggestions only By all means please feel free to experiment with other wiring options See page 14 NOTE The Current Source output is a Voltage Source modified to yield an impedance of one ohm This cor responds approximately to a vacuum tube amplifier s output impedance and constitutes the dominant factor in the soundstage delivery of classic vacuum tube power amplifiers 7 Current Source Fuses Each Current Source output has an in line fuse to protect your speakers If one ever opens there will be no output to that speaker A 8 IEC connector The amplifier comes with a detach able Linecord which attaches here Make sure it is firmly pushed in place Connect the other end to an AC outlet which is properly configured for the type of plug and has the correct volt age for your model Unplug the amplifier from the AC mains power supply if
28. uid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped z 10 Ventilation The apparatus should be situated so that its location or position does not interfere with its proper ventilation For example the apparatus should not be situated on a bed sofa rug or similar surface that may block any ventilation openings or placed in a built in installation such as a bookcase cabinet or closed equip ment rack that may impede the flow of air through ventilation openings 11 Power Sources The apparatus should be connected to a power sup ply only of the type described in these operation instructions or as marked on the apparatus 12 Power Cord Protection Pow er supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them paying particular at tention to cords at plugs convenience receptacles and the point where they exit the apparatus 13 Non use Periods The power cord of the apparatus should be un plugged from the outlet when unused for a long period of time 14 Object and Liquid Entry Care should be taken so that objects do not fall into and liquids are not spilled into the inside of the apparatus 15 Servicing The user should not attempt to service the apparatus beyond those means described in this operating manual A
29. usual for the right patch cord plugs to be red and the left connections to be white grey or black Video connec tions are usually yellow Sunfire User s Manual CHAPTER 1 Front Panel Features Theater Grand Amplifier TGA 7401 Overview Your Theater Grand Amplifier has seven channels of power amplifica tion combined in one chassis for the purpose of reproducing music or video soundtracks It accepts line level signals from a controlling preamplifier and amplifies them to a higher level suitable for driving powerful stereo and Home Theater speakers The front panel power LED will turn blue when the amplifier is turned on The brightness can be set to high medium or low using the LED dimmer 11 on the rear panel The LED turns red when the amplifier is turned off A T Sunfire User s Manual CHAPTER 1 Rear Panel Features 12 INIMUM SPEAKER Li AD IMPEDANCE 4 OI ls CLASS WIRING 1 AUTO ON OFF Switch Your Theater Grand Amplifier is designed with an automatic on off circuit In the AUTO ON position the amplifier will automatically turn on if an audio signal is pres ent at any of the inputs or if it receives a 12 VDC input volt age at the trigger inputs The amplifier will automatically turn off after a few seconds if the trigger voltage is removed or after approximately 30 minutes in the absence of an audio signal In the power on
30. with bridge clips for normal Each amplifier channel has two operation RCA inputs which are connected Make sure that any bridge together internally A N clips are removed when Connect the preamp stereo biamping or biwiring the output to the front channel speakers If not this may RCA jacks Then install short cause damage to the interconnects from the other amplifier unused front RCA jacks across to the rear channel RCA jacks In this way the front and rear amplifier channels are fed with the same signal from your preamp Each speaker can be driven by two amplifier channels one to drive the woofer and one for the upper range You will need to use four amplifier channels to biamp two speakers e Note you cannot use XLR cables in with RCA out or RCA in with XLR out There is no direct internal connection between the RCA and XLR inputs If you use the Theater Grand Ampli fier for biamping then a total of five speakers can be connected You will need an extra two channel amplifier if you want to run the surround back speakers in a 7 1 channel Home The ater system 12 Sunfire User s Manual CHAPTER 2 Biamping Connections Note The remaining channels can be used to drive other speakers or left unconnected These connections have been omitted from this drawing and the one below for clarity They can be connected as shown on pages 10 and 11 UNBALANCED PREAMP OUTPUTS R L Line level audio signals
31. you ever have to change a fuse 9 Power Switch Press the top edge of this power switch to turn the amplifier on The power LED will turn blue The auto on off switch 1 controls how the amplifier turns on signal sensing 12V trigger etc 10 AC Line fuse If this fuse fails replace it with the exact same type and current rating Note Always unplug the power cord from your AC outlet before removing the fuse Gently turn the fuse carrier counter clockwise to release the fuse 11 LED Dimmer This switch allows you to set the brightness of the front panel power LED from low medium and high Ad just this to match the brightness of the other components in your system system Configurations The following pages show some typical connections that you might make in your installation They show how the inputs and outputs of the Theater Grand Amplifier are connected to your preamplifier and speakers Unbalanced Connections UNBALANCED PREAMP OUTPUTS RB LB RS Ls il Line level audio signals From Preamplifier main RCA outputs To Amplifier line level inputs If your preamplifier has RCA out puts it can be connected to the ampli fier inputs as shown The amplifier will boost the preamplifier s output up to a level suitable for driving speakers This diagram also shows how the Voltage Source outputs connect to the in
Download Pdf Manuals
Related Search