Nad Electronics 3020i Integrated Amplifier
Good condition. No box.
The NAD 3020 has four inputs that can be switched via the front panel – Aux, Tuner, Phono, Tape. The manufacturer claims the phono input, which can also be used with high-output moving coil cartridges, contains a 6-transistor circuit "engineered for extremely low noise and nearly distortion-free performance". Reviewers note the pre-amplifier's "decent moving-magnet phono stage". The amplifier is bandwidth-limited, incorporating infrasonic and ultrasonic filters to supposedly reduce the effects of non-musical signals such as acoustic feedback, disc warps and electromagnetic interference on the musical signals.
The amplifier has bass and treble tone controls which, according to the manufacturer, are "tailored for musically effective response in the high and low frequencies without altering the critical mid-range tonal balance". A loudness switch – de rigueur in that era – boosts upper and lower frequencies; a "mute" switch reduces volume by 20 dB for low-level listening. There is also a headphone socket mounted onto the front panel.
According to the manufacturer, the NAD 3020 is a high voltage design that uses the same large powerful output transistors (2N3055 and MJ2955) that "other manufacturers employ in their '60-watt' amplifiers", enabling the amplifier to deliver power headroom for musical transients. The "Soft Clipping" circuitry is intended to limit the output voltage so that the transistors do not distort when driven beyond its rated power.
Power output: 20 watts per channel into 8Ω (stereo)
Frequency response: 10 Hz to 70 kHz
Total harmonic distortion: 0.02%
Damping factor: 55
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 75 dB (MM), 110 dB (line)
Return & Refund Policy
• All Pre-Owned items have been tested before listing.
• NO WARRANTY.
• We encourage buyers to test and verify the equipment condition at our showroom (1 Coleman Street, The Adelphi, Unit 03-35) — pre-owned condition as shown on our listed page.