🏷️ Basic Information Identification Make: Marantz Model: 2252B Year: Unknown Generation: Unknown 📋 Manual Details General Manual Type: Service Manual Language: English Format: PDF Technical Page Count: Unknown Revision Date: Unknown Included Sections: Troubleshooting, Schematics, Parts List, Adjustment Procedures Availability Download Source: Available for Download 🔧 Maintenance General Service Interval: Recommended periodic checks and component replacement as per manual Electrical Recommended Capacitors: Electrolytic capacitors (periodic replacement recommended) Cleaning Exterior Cleaning: Use a soft, damp cloth 📄 Technical Overview Audio Features Receiver Type: Stereo Receiver Power Output Rms Per Channel: 52 Watts Total Harmonic Distortion Thd: 0.1% Frequency Response: 20Hz - 20kHz Signal To Noise Ratio Snr Phono: 70 dB Signal To Noise Ratio Snr Aux: 90 dB Tuning Tuner Type: Analog (PLL Synthesized) Am Fm Sensitivity: 1.8 µV (IHF) Inputs Outputs Phono Inputs: Yes (MM) Auxiliary Inputs: Yes Tape Monitor Loop: Yes Power Supply Power Requirements: AC 100V, 110V, 120V, 220V, 240V (Switchable)