NAD 7400の取扱説明書

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7400 Stereo Receiver
Date of manufacture : ? - Nov 89
Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date
The 7400 Receiver (composed of circuitry from the 2400 Power Amp and 1700 Preamplifier/Tuner) was
designed according to the same principles as the 7l00, but it is approximately twice as powerful and has
additional refinements, including semi-parametric tone controls and convenient analogue style knob
tuning

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PRE-AMP SECTION Phono input Input impedance (R and C) MM 47kΩ / 120pF MC 47kΩ / 120pF Input sensitivity, 1kHz MM 0.28mV ref. 1W MC 0.02mV ref. 1W Signal/Noise ratio (A-weighted with cartridge connected) MM 76dB ref. 5mV MC 76dB ref. 5mV THD (20Hz - 20kHz) <0.04% RIAA response accuracy (20Hz - 20kHz) ±0.5dB Line level inputs Input impedance (R and C) 50kΩ / 250pF Input sensitivity (ref. 1W) 15mV Maximum input signal >10V Signal/Noise ratio (A-weighted ref 1W) 96dB Frequency response (20Hz - 20kHz

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FM TUNER SECTION Input sensitivity Mono -30dB THD+N 10.3dBf (0.9μV/75Ω) Mono 50dB S/N 13dBf (1.2μV/75Ω) Stereo 50dB S/N 25dBf (5μV/75Ω) Stereo 60dB S/N 35dBf (15μV/75Ω) Capture ratio (45 - 65dBf) <1.5dB AM rejection (45 - 65dBf) >65dB Selectivity, alternate channel 75dB Selectivity, adjacent channel 7dB Image rejection >90dB I F rejection >100dB Harmonic distortion Mono 0.08% Stereo 0.08% Signal/Noise ratio Mono 82dB Stereo 78dB Frequency response ±0.5dB 30Hz - 15kHz Channel separation at 1kHz 5