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Theater Grand Amplifier
TGA-7401 / TGA-7401-230
and TGA-7201 / TGA-7201-230
seven
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SAFETY Important Safety Instructions 10. Ventilation — The apparatus 13. Non-use Periods—The power 1. Read Instructions. should be situated so that its location cord of the apparatus should be un- . Keep these Instructions. or position does not interfere with its plugged from the outlet when unused proper ventilation. For example, the for a long period of time. 3. Heed all Warnings. apparatus should not be situated on a 14. Object and Liquid Entry — Care bed, sofa, rug, or similar surface
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SAFETY 16. To prevent electric shock, do not 17. Grounding or Polarization — ATTENTION — Le présent appar- use this polarized plug with an exten- Precautions should be taken so that eil numérique n'émet pas de bruits sion cord, receptacle or other outlet the grounding or polarization means radioélectriques dépassant las limites unless the blades can be fully inserted of the Component is not defeated. applicables aux appareils numériques to prevent blade exposure. de class A/de class B (selon
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CHAPTER 1 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. 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 00 watts rms per channel into 8 ohms, and 400 watts 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. Th
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CHAPTER 1 Theater Grand Amplifier Editions The Theater Grand seven chan- TGA-7401 and TGA-7401-230 nel power amplifier is available in two 400 Watts per channel into 8 Ω editions: 800 Watts per channel into 4 Ω • TGA-7401 • TGA-7201 The TGA-7401 has twice the power output of the TGA-7201. 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 a
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CHAPTER 1 Unpacking Installation Your Sunfire Amplifier should reach Read and follow all safety instruc- • Make sure that the power you in perfect condition. If you do tions shown on pages 2 and 3. cords of all your components notice any shipping damage, please are attached to the same outlet Observe the following precautions contact your Sunfire Dealer immedi- or at least to the same circuit. when choosing a location for your ately. This will reduce the possibility Theater Grand Amplifie
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CHAPTER 1 Front Panel Features 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
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+ - + - + - + - RIGHT RIGHT LEFT LEFT TWEETER WOOFER WOOFER TWEETER (CURRENT (CURRENT SOURCE) SOURCE) LOUDSPEAKERS L R UNBALANCED PREAMP OUTPUTS CHAPTER 1 Rear Panel Features 1 2 3 4 5 6 6 5 6 11 7 7 6 6 6 7 6 8 9 10 The voltage range for the trigger 1. AUTO/ON/OFF Switch 2. 12 VDC Trigger Input input is from 5 to 18 VDC. The input Your Theater Grand Amplifier is Although the AUTO-ON signal impedance is approximately 600 Ω designed with an automatic on/off sensing turn-on is adequate fo
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CHAPTER 1 According to your musical taste, 4. XLR Inputs 10. AC Line fuse you may select the Current Source for If your preamplifier has XLR If this fuse fails, replace it with the driving electrostatic, planar magnetic outputs, connect them to these XLR exact same type and current rating. or ribbon speakers. For cone based inputs. These balanced connections systems, use either. For a biwired sys- Note: Always unplug the offer superior noise rejection com- tem, use the Current Source for
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RB R RS C LS LB L LOUDSPEAKERS L C LS R LB RS RB + + + + + + + UNBALANCED PREAMP OUTPUTS CHAPTER 2 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 Line-level audio signals From: Preamplifier main RCA outputs To: Amplifier line-level inputs Speaker-level audio outputs From: Amplifier output
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R RB C RS LS L LB LOUDSPEAKERS + + + + + + + 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: Pream
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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 system. Output connections • 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, you
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+ - + - + - + - RIGHT RIGHT LEFT LEFT TWEETER WOOFER WOOFER TWEETER (CURRENT (CURRENT SOURCE) SOURCE) LOUDSPEAKERS + - + - + - + - RIGHT RIGHT LEFT LEFT TWEETER WOOFER WOOFER TWEETER (CURRENT (CURRENT SOURCE) SOURCE) LOUDSPEAKERS L R INPUT L L R R L R LOW OUT L R UNBALANCED PREAMP OUTPUTS HIGH OUT ACTIVE EXTERNAL CROSSOVER FULL FREQ RANGE UNBALANCED PREAMP OUTPUTS CHAPTER 2 Biamping Connections Note: The remaining channels can Line-level audio signals be used to drive other speake
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T T + - + - + - + - RIGHT RIGHT LEFT LEFT TWEETER WOOFER TWEETER WOOFER (CURRENT (VOL AGE (CURRENT (VOL AGE SOURCE) SOURCE) SOURCE) SOURCE) LOUDSPEAKERS UNBALANCED PREAMP OUTPUTS L R 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 Line-level audio signals clips between the woofer Fro
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APPENDIX Series and Parallel speaker connections The connection of more than one Parallel speaker per channel will tend to • Ideally, the total average For example, if you want to parallel- degrade the speaker’s frequency impedance should be no less connect two speakers to the front right response, and may make the amplifier than 4 ohms per channel. channel of the amplifier: run hot. For the best results use one speaker per channel. • You must make sure that the lower impedance does no
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APPENDIX Troubleshooting Guide The Sunfire Amplifier is expertly • Try to have all of your equipment The amplifier shuts down designed and built to provide years of on the same electrical outlet or often or the line fuse blows trouble-free performance. Most prob- circuit. Group all the low power lems that occur can usually be solved often components (preamp, CD player, by checking your setup or making DVD etc.) on a single outlet or • Check that the positive and nega- sure that the audio
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APPENDIX • Check that the interconnect cables Poor bass performance to the amplifier do not have any • Make sure that your preamp does broken connections. not have the bass level turned down. Other causes of noise • Many surround preamplifiers have • Speaker noise may also be caused controls which can direct all the by interference or noise on your bass to subwoofers, or let your AC line. Make sure there are no main speakers play the full range. large appliances sharing the line, Ma
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APPENDIX Specifications Input sensitivity for rated 12 VDC Trigger Inputs output Input voltage range 5 -18 VDC TGA-7401 Impedance: approx 600 Ω Unbalanced: 1.34 Vrms (20 mA @ 12 V) Balanced: 0.67 Vrms Power output Removable terminal block, and 400 watts continuous, per chan- XLR Input impedance dual 1/8" minijacks for daisy-chain- nel, into eight ohms, at 1 kHz 10 kΩ, each leg balanced to ing. with no more than 0.5% T.H.D. ground Power Consumption Power at clipping, min Female X
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APPENDIX Sunfire Limited Warranty Service Assistance Sunfire, a division of Elan Home to the warranty actually extended to If your Sunfire product ever requires Systems, LLC, is proud of its products Sunfire by its supplier. The foregoing service, write to us or call: which have been built with care using warranties do not cover reimburse- Sunfire, advanced technology and premium ment for labor, transportation, re- 1300 E New Circle Road, Suite 150 component parts. Your unit has been moval, in
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Theater Grand Amplifier TGA-7401 / TGA-7401-230 and TGA-7201 / TGA-7201-230 Manual part number : 913-153-00 Rev A
