Seven

TGA-7400 / TGA-7400(E) and TGA-7200 / TGA-7200(E)

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Contents

Seven Important Safety Instructions Contents Introduction TGA-7400 and TGA-7400E Theater Grand EditionsTGA-7200 and TGA-7200E AC Power Considerations InstallationUnpacking Care Power Switch Front Panel FeaturesOverview AUTO/ON/OFF Switch Rear Panel FeaturesVDC Trigger Input RCA Inputs XLR Inputs IEC connectorCurrent Source Outputs Voltage Source Outputs Current Source Fuses Unbalanced Connections System Conﬁgurations SAT Balanced Connections Output connections BiampingInput connections Biamping with an external crossover Biamping Connections Unbalanced Preamp Outputs Biwiring Connections Series Series and Parallel speaker connectionsParallel No sound from one or more speakers Troubleshooting GuideAmpliﬁer shuts down often or the line fuse blows often Hum is heard in your speakers Poor bass performance Other causes of noiseTurn-on and turn-off thumps Current source outputs not working TGA-7200 Speciﬁcations TGA-7400 Service Assistance Limited Warranty Seven