🏷️ Basic Information Identification Make: Marantz Model: SR7400 / PS7400 Product Type: AV Surround Receiver Product Line: SR Series 📋 Manual Details Document Information Manual Type: Service Manual Language: English (presumed) Format: PDF Availability: Downloadable Content Sections Technical Description: Included Wiring Diagram: Included Block Diagram: Included Schematic Diagram: Included Parts Location: Included Ic Data: Included Exploded View Parts List: Included Power Supply Information: Included 📄 Technical Specifications Audio Processing Surround Sound Formats: DTS, Dolby Digital, Dolby Pro Logic II Dsp Modes: Virtual Surround, Stereo Amplification Number Of Channels: 7.1 Power Output Per Channel: 110W (8 ohms, 20Hz-20kHz) Dynamic Power: 140W (6 ohms) Connectivity Digital Inputs: Coaxial, Optical Hdmi Ports: No (likely older model) Component Video Inputs: Yes Pre Outs: 7.1 Channel Speaker Terminals: Binding Posts Radio Tuner Type: AM/FM Preset Stations: 40