Stereo Tuner 4155

NAD, New Acoustic Dimension; Ontario

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  • Year
  • 1984/1985
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 232114

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Tuner 4155 - NAD, New Acoustic Dimension;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 76 x 200 mm / 16.5 x 3 x 7.9 inch
  • Notes

  • A hi-fi AM/FM stereo tuner with a digital frequency display housed in a grey metal case. With LED Signal strength and Tuning indicators, FM Stereo LED indicator, keys for AM/FM, for 5 AM and 5 FM preset radio stations and memory Enter, push buttons for Power on/off, Mono, FM Mute, Dynamic Separation circuit Defeat, Tuning Up/Down and Search. On the back, adjustable AM ferrite rod antena, terminals for AM and FM antennae, RCA phono Line Output sockets and a rotary Output Level control.

    Specification  
    FM Tuner Section  
    Input sensitivity 75µs deemphasis (USA version)
     Mono, -30dB THD + N
     Mono, 50dB S/N
     Stereo, 50dB S/N
     Stereo, 60dB S/N    		 9.8dBf (1.7µV/300Ω)
    13.2dBf (2.5µV)
    32dBf (22µV)
    42dBf (70µV)
    Input sensitivity 50µs deemphasis (All except USA)
     Mono, -30dB THD + N
     Mono, 50dB S/N
     Stereo, 50dB S/N
     Stereo, 60dB S/N    		 10.3dBf (1.8µV/300Ω)
    15.8dBf (3.2µV)
    33.2dBf (25µV)
    43.1dBf (78µV)
    Capture ratio at 25, 45, 65dBf < 1.5dB
    AM rejection  > 65dB
    Alt. channel Selectivity 70dB
    Adj. channel Selectivity 8dB
    Image rejection 85dB
    RF intermodulation 70dB
    IF rejection 90dB
    SCA rejection 70dB
    THD at 100% mod  1kHz  100Hz-6kHz
     Mono
     Stereo    		 0.09%     0.2%
    0.09%     0.3%
    S/N ratio, A-weighted, 65dBf  
     Mono
     Stereo    		 82dB
    75dB (typ. 80dB at 75dBf)
    Frequency response 30Hz-15kHz ±0.5dB
    Stereo separation
    (Dyn Sep off)    		 1kHz: 50dB
    30Hz-10kHz: 40dB
    AM Tuner Section  
    Usable sensitivity 300µV/m
    Selectivity 35dB
    Image rejection 50dB
    IF rejection 50dB

    Power requirements: 110, 120, 220 or 240V AC 50/60Hz
    Power consumption:  12 Watts

    Made in Japan

  • Net weight (2.2 lb = 1 kg)
  • 3.810 kg / 8 lb 6.3 oz (8.392 lb)
  • Mentioned in
  • -- Original prospect or advert (1985 NAD Products catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual NAD 4155)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Instructions manual NAD 4155 dated 1984)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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