Sunfire TGA-7401-230 manual Rear Panel Features, AUTO/ON/OFF Switch, VDC Trigger Input, RCA Inputs

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CHAPTER 1

Rear Panel Features

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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 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.

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 II, 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.

Do not exceed 18 VDC on this input. (CAUTION: Do not connect AC line voltage to this input!)

The voltage range for the trigger input is from 5 to 18 VDC. The input impedance is approximately 600 Ω (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 inputs 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.

User's Manual

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Contents Seven Important Safety Instructions Contents Introduction TGA-7201 and TGA-7201-230 Theater Grand Amplifier EditionsTGA-7401 and TGA-7401-230 Installation AC Power ConsiderationsUnpacking CareFront Panel Features OverviewRear Panel Features AUTO/ON/OFF SwitchVDC Trigger Input RCA InputsIEC connector Power SwitchXLR Inputs Current Source Outputs Voltage Source OutputsChapter Balanced Connections LoudspeakersInput connections BiampingOutput connections Biamping Connections Biamping with an external crossoverVolt Parallel Series and Parallel speaker connectionsSeries Troubleshooting Guide No sound from one or more speakersAmplifier shuts down often or the line fuse blows often Hum is heard in your speakersOther causes of noise Poor bass performanceTurn-on and turn-off thumps Current source outputs not workingSpecifications TGA-7401 TGA-7201Sunfire Limited Warranty Service AssistanceTheater Grand Amplifier

TGA-7201, TGA-7401-230, TGA-7201-230, TGA7401 specifications

The Sunfire TGA series stands as a testament to cutting-edge audio engineering, with models like the TGA7401, TGA-7201-230, TGA-7401-230, and TGA-7201. Each of these amplifiers is meticulously crafted to cater to the needs of audiophiles seeking unparalleled performance and robustness in their sound systems.

The Sunfire TGA7401, for instance, boasts a powerful output of 400 watts per channel into 8 ohms, making it an excellent choice for driving demanding speakers. This model employs Sunfire’s patented Tracking Downconverter technology, which provides high efficiency while minimizing distortion. The low-profile design of the TGA7401 allows it to fit comfortably in AV racks without sacrificing operational power, ensuring that it can deliver high-quality sound in any setup.

Similarly, the TGA-7201-230 is designed for those who appreciate compactness without compromising audio fidelity. With its 200 watts per channel output, this amplifier is ideal for smaller setups or as an addition to a home theater system. The TGA-7201-230 features advanced thermal management systems that keep the amplifier cool during extended use, increasing durability and performance reliability.

The TGA-7401-230 presents a hybrid of power and flexibility, offering both balanced and unbalanced inputs. This feature allows users to integrate the amplifier seamlessly into various audio setups, whether it be for home theater or high-fidelity stereo listening. The inclusion of a sophisticated signal path and upgraded components ensures that the audio performance is always crystal clear, with an impressive dynamic range.

On the other hand, the TGA-7201 rounds out this impressive lineup with its combination of efficiency and streamlined features. It maintains a low total harmonic distortion rate, ensuring that listeners receive accurate sound reproduction, which is essential for both music and cinema experiences. The compact design enables it to be used in various environments, while still delivering the power necessary for an exhilarating audio experience.

Overall, the Sunfire TGA series exemplifies high-performance audio technology, bringing forth amplifiers capable of delivering clear, powerful sound. With their robust build quality, innovative technologies, and impressive specifications, models like the TGA7401, TGA-7201-230, TGA-7401-230, and TGA-7201 provide a premium listening experience for any audio enthusiast. Whether you are building a home theater or simply seeking to upgrade your audio setup, the Sunfire TGA series stands ready to enhance your listening experience.
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