Adcom Connecting the GFA-7700, RS - Right Surround LS - Left Surround, They are as follows

Contents High Current 5-Channel Power Amplifier GFA-7700Page Installation & Hookup GFA-7700FeaturesTable of Contents TroubleshootingIntroduction ADCOM Protection Plan USA ONLYRear Panel Inputs DB-25Multichannel Audio Input ConnectorDescription of Unit Outputs12VDC Triggering 4a AC Power CordAC Fuse 4b Front Panel On/Off Switch Power LEDDistortion Alert LEDs Thermal Protection LEDsUnpacking the GFA-7700 Installation & HookupPlacement of the GFA-7700 Quick ConnectionsRF - Right Front C - Center LF - Left Front Connecting the GFA-7700RS - Right Surround LS - Left Surround They are as followsInputs OutputsCARING FOR YOUR GFA-7700 Troubleshooting Resolving ProblemsServicing Power Consumption Continuous, All Channels Driven GFA-7700SpecificationsPower Rating EIA/CEA-490-A THD + Noise into 8 ohms TypicalVoice gfa7700 manual