Marantz Model 2270 AM/FM Stereo Receiver

Here are the comprehensive technical specifications for the Marantz Model 2270 stereophonic receiver : Amplifier Section Power Output: 70 watts continuous RMS per channel into 8Ω (both channels driven simultaneously) Frequency Response: 7Hz to 50kHz (±1dB) Total Harmonic Distortion (THD): 0.3% max at rated power output (distortion decreases at lower outputs) Intermodulation Distortion (IMD): 0.3% at rated power output Damping Factor: 45 into an 8Ω load Speaker Load Impedance: Accommodates speakers from 4Ω to 16Ω Audio Inputs & Pre-Amplifier Input Sensitivity: Phono (MM): 1.8mV Aux / Tape Line Inputs: 180mV Signal-to-Noise Ratio (SNR): 80dB (Line / Aux) Channel Separation: 35dB (Line) Tone Controls: Linear sliders or detented knobs for discrete Bass, Mid, and Treble adjustments per channel Tuner Section (AM/FM) FM Tuning Range: 87.5 to 108 MHz AM Tuning Range: 540 to 1,602 kHz IHF Usable Sensitivity: 2.3 μV FM Stereo Separation: 40dB at 1kHz Power & Physical Specifications Production Years: 1971–1975 Power Requirements: Universal transformer supporting 100V, 120V, 220V, and 240V AC (50–60Hz) Power Consumption: 500 Watts at max rated output; 38 Watts idling Dimensions (W x H x D): 17-21/64 x 5-25/64 x 14 inches (approx. 440 x 137 x 356 mm) Weight: 38.5 lbs (17.5 kg) net weight without wood case