NAD 7020i دليل المستخدم

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7020i Stereo Receiver
Date of manufacture : Feb 90 - ?
Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date
• Conservatively rated at 20 W/channel continuous power, with +3 dB of IHF Dynamic Headroom.
Dynamic power exceeds 40 W/channel at 8 or 4 ohms, 50 W/ channel at 2 ohms.
• High-current output stage delivers peak currents up to 15 amperes, for precise control of voice-coil
motion with speaker impedances as l

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Soft Clipping™ When the 7020i is overdriven beyond its power capacity, the exclusive NAD Soft Clipping™ circuit gently limits the waveform voltage so that the output transistors are never driven into saturation, i.e. into “hard clipping”. Thus the receiver can safely be overdriven substantially beyond its rated power on peaks, yet still continue to sound smooth and musical. Digital-ready Dynamic Range The 7020i’s over-load- proof inputs for video, tape and digital Compact Disc can accommodate a

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PRE-AMP SECTION Phono input Input impedance (R and C) 47kΩ / 100pF Input sensitivity, 1kHz 2.4mV ref. 20W Signal/Noise ratio (A-weighted with cartridge connected) 75dB ref. 5mV THD (20Hz - 20kHz) <0.04% RIAA response accuracy (20Hz - 20kHz) ±0.5dB Line level inputs Input impedance (R and C) 40kΩ / 100pF Input sensitivity (ref. 20W) 150mV Maximum input signal >10V Signal/Noise ratio (A-weighted ref 1W) 84dB Frequency response (20Hz - 20kHz) +0.5dB, -1.0dB Infrasonic filter -3db at 15Hz, 24dB/octa