Sunfire TGA-7400(E) manual Theater Grand Editions, TGA-7400 and TGA-7400E, TGA-7200 and TGA-7200E

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Theater Grand Editions

The Theater Grand seven chan- nel power ampliﬁer is available in two editions:

•TGA-7400

•TGA-7200

The TGA-7400 has twice the power output, and uses heavier output ter- minals compared to the TGA-7200.

This manual uses illustrations of the TGA-7400. The operational details, features, and connections to loud- speakers and preampliﬁers are the same for both models.

The TGA-7400(E) and TGA- 7200(E) are export models, set for 220-240 VAC operation. Their opera- tion is identical to the TGA-7400 and TGA-7200 ampliﬁers.

CHAPTER 1

TGA-7400 and TGA-7400(E)

400 Watts per channel into 8 Ω

800 Watts per channel into 4 Ω

TGA-7200 and TGA-7200(E)

200 Watts per channel into 8 Ω

400 Watts per channel into 4 Ω

User's Manual

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Contents Seven Important Safety Instructions Contents Introduction TGA-7200 and TGA-7200E Theater Grand EditionsTGA-7400 and TGA-7400E AC Power Considerations InstallationUnpacking CareOverview Front Panel FeaturesPower Switch AUTO/ON/OFF Switch Rear Panel FeaturesVDC Trigger Input RCA InputsXLR Inputs IEC connectorCurrent Source Outputs Voltage Source Outputs Current Source FusesUnbalanced Connections System ConﬁgurationsSAT Balanced ConnectionsInput connections BiampingOutput connections Biamping with an external crossover Biamping ConnectionsUnbalanced Preamp Outputs Biwiring ConnectionsParallel Series and Parallel speaker connectionsSeries No sound from one or more speakers Troubleshooting GuideAmpliﬁer shuts down often or the line fuse blows often Hum is heard in your speakersPoor bass performance Other causes of noiseTurn-on and turn-off thumps Current source outputs not workingTGA-7200 Speciﬁcations TGA-7400Service Assistance Limited WarrantySeven