Stereo Power Amplifier 2150

NAD, New Acoustic Dimension; Ontario

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  • Year
  • 1982 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 310131

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110 or 120 or 220 or 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 100 W (114 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Power Amplifier 2150 - NAD, New Acoustic Dimension;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 96 x 310 mm / 16.5 x 3.8 x 12.2 inch
  • Notes

  • A 2 x 50 watt hi-fi stereo Power Amplifier. With a high-voltage, high-current output stage enabling it to deliver well above its rated power to handle musical transients, and a 'soft clipping' circuit which gently limits the waveform voltage when the amplifier is driven beyond its rated power.

    On the rear, Main-In sockets for connection to a pre-amplifier, connectors for two pairs of loudspeakers, switches for Soft Clipping (On/Off), Bridging (On/Off) and a Speakers Impedance switch (Normal/Hi (≥ 8Ω)), the Hi setting can be used where one pair of speakers are connected and their impedance is at least 8Ω, this re-optimizes the amplifier for maximum power. Some models have a switched and an unswitched AC outlet and some a voltage selector.

    On the front, switches for Power, Speakers A, B, LED indicators for Power, Protection and Soft Clipping and a jack for headphones.

    Specification
    Speakers Impedance Switch Set:            Normal      Hi (≥ 8Ω)
    Continuous Average Power Output at
     8 ohm 20-20K Hz both Channels Driven :  50 W        60 W
    Rated Distortion  20Hz-20kHz ...............:  <0.03%   <0.03%
    Clipping Headroom at 8 ohm .................:  +0.5 dB   +0.5 dB
    Clipping Power at 8 ohm .......................:  57 W        68 W
                           at 4 ohm ......................:  80 W         -
                           at 2 ohm ......................:  90 W         -
    Dynamic Headroom at 8 ohm ...............:   +1.8 dB    +1.6 dB
    Dynamic Power at 8 ohm .....................:  90 W        100 W
                            at 4 ohm ....................:  150 W         -
                            at 2 ohm ....................:  180 W         -
    Damping Factor at 50 Hz (Ref. 8 ohm) ..:  >100
    THD 20Hz-20kHz from 250mW to 60W  :  <0.03%
    Frequency Response, 20Hz-20kHz .......:  ±0.5 dB
    Frequency Response Range -3 dB ........: 10Hz-35kHz

    Versions/Power Requirements
    110 or 120 V AC 60Hz
    220 or 240 V AC 50Hz
    110/120/220/240 50/60Hz with voltage selector (not on US/Canada/UK models)

    Made in Taiwan

  • Net weight (2.2 lb = 1 kg)
  • 8.8 kg / 19 lb 6.1 oz (19.383 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (NAD Service manual for the 2150/3150/4150/7150 models)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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