Stereo Amplifier 3020A

NAD, New Acoustic Dimension; Ontario

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  • Year
  • 1982 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 310043

 Technical Specifications

  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110-120 or 220 or 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 40 W (56 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier 3020A - NAD, New Acoustic Dimension;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 96 x 240 mm / 16.5 x 3.8 x 9.4 inch
  • Notes

  • The NAD 3020A is 2 x 20 watt stereo hi-fi integrated amplifier with Soft Clipping, the second model in the long running production run of the NAD 3020 integrated stereo hi-fi amplifier. It has the same specification as the original NAD 3020 Series 20 Stereo Amplifier with minor circuit corrections and has additional MC cartridge input and a Mono button instead of Audio Muting. Early examples are marked 3020A Series 20 on the front, later just 3020A. Optional rack mount handles are available. 

    With RCA input sockets for Phono (MM or MC), Tuner and Aux, input/output RCA sockets and DIN socket for Tape, switches for MC/MM Selector and Soft Clipping (On/Off). Sockets for Pre-amp out and Normal-in connected with removable U shaped metal jumpers, and sockets for Lab-in (an alternative to the Normal-in socket with wideband frequency response). Connectors for one pair of loudspeakers and two AC outlets (not all models). Rotary controls for Bass, Treble, Balance and Volume, push buttons for Power, input selection (Aux, Tuner, Phono, Tape), Mono and Loudness. Power On pilot light and and 5 LED Power Meter indicators. Jack for headphones.

    Specification
    Continuous Average Power Output into 8Ω
    (Min. RMS power per channel, 20Hz - 20kHz, both channels driven
    with no more than the rated distortion) ......:  20 watts
    Rated Distortion 20Hz - 20kHz .................:  < 0.02%
    Clipping Power at 8Ω / 4Ω / 2Ω ................:  28W (8Ω), 37W (4Ω), 42W (2Ω)
    Dynamic Headroom at 8Ω ........................:  +2.9dB
    Dynamic Power (Max. short term) .............:  39W (8Ω), 58W (4Ω), 72W (2Ω)
    Damping Factor at 50Hz, 8Ω ....................:  > 55
    Frequency Response Range .....................:  10Hz - 70kHz
    Frequency Response 20-20kHz Lab Input ..:  ±0.5dB
    Input Sensitivity .......................................:  2.5mV (MM), 180µV (MC), 150mV (line)

    Versions/Power Requirements
    USA Canada   110-120 V AC 50/60Hz
    Europe            220 or 240 V AC 50Hz

    Similar to the later NAD 3020B Stereo Amplifier which has an additional Speaker Impedance switch and more robust speaker binding posts.

    Made in Taiwan

  • Net weight (2.2 lb = 1 kg)
  • 5.3 kg / 11 lb 10.8 oz (11.674 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (NAD 3020A instructions for installation and operation)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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