Integrated Amplifier 1120 TA-1120A

Sony Corporation; Tokyo

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  • Year
  • 1969–1971
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 27716

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 46
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 100; 117; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 100 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Amplifier 1120 TA-1120A - Sony Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 400 x 145 x 310 mm / 15.7 x 5.7 x 12.2 inch
  • Notes

  • A hi-fi stereo integrated amplifier housed in a metal case (wooden case optional) with power output of 50 watts per channel into 8 ohms. With Bass and Treble tone controls, switches for Tone Cancel, High and Low Filters, Tape Monitor,  Mode (Stereo,Reverse, Left, Right, L+R), jacks for headphones and microphone, RCA phono sockets for input Tape Head, Phono1, Phono2, Tuner and Aux, for input/output Tape, for Pre-Amp Out and Power Amp In, DIN socket for Tape Rec/Pb, terminals for one pair of loudspeakers, Level Adjusters for Tuner and Aux, two switched and one unswitched AC outlets. 

    Specification  
    System Circuit Quasi-complementary symmetry SEPP OTL Circuit
    Power Amplifier Section  
    Rated output (IHFM) 50W per channel (8Ω) ±0.5dB
    35W per channel (16Ω) ±0.5dB
    Frequency response 5Hz-200kHz +0dB,-2dB at rated output
    Harmonic distortion (IHFM)  
      At 1kHz < 0.05% at rated output
    < 0.01% at 10W output
     20Hz-15kHz < 0.1% at rated output
    < 0.06% at 25W output
    < 0.03% at 0.5W output
    Signal/Noise ratio 110db (Closed Circuit, IHFM)
    Input impedance 100kΩ or more
    Damping factor (at 1kHz) > 180 (8Ω), > 360 (16Ω)
    Sensitivity 1V for rated output (50W/8Ω)
    Preamplifier Section  
    Output level  
    Preamp rated output
    Rec output
    Headphone output    		 2V
    0.15V
    6V
    Frequency response  
    Tuner, Aux Tape
    Phono-1, Phono-2
    Tape head
         		 10Hz-100kHz +0dB,-2dB
    30Hz-15kHz ±0.5dB (RIAA EQ. curve)
    30Hz-15kHz (NAB EQ. curve)
      (Adjustable +3dB at 10kHz)
    Mic input 30Hz-50kHz +0dB,-2dB
    Input sensitivity/Impedance  
    Tuner, Aux
    Phono-1, Phono-2
    Tape Head
    Mic
    Tape
    Amplifier    		 0.15V/100kohms (adjustable)
    1.2mV/47kΩ
    1.2mV/500kΩ
    1.2mV/500kΩ
    0.15V/100kΩ
    1V/100kΩ
    Outputs Rec Out (0.15V) Headphone (6V) Preamp out (2V)
    Integrated record input sensitivity 0.5V
    Playback connection Output level 25mV
    Filters High filter 12db/oct above 9kHz
    Low filter  12db/oct below 50Hz
    S/N ratio (closed circuit)  
    Aux, Tuner
    Phono-1
    Phono-2
    Tape head
    Mic    		 > 90db
    > 70db
    > 70db
    > 70db
    > 65db

    Power requirement : 100, 117, 220 or 240V AC 50/60Hz
    Power consumption : Approx.260W at maximum output.

    Stereo-NF-Verstärker mit 2 Endstufen je 50 W (Sinus).
    Vertrieb in D über ELAC.
    Klangregelung in 11 Stufen in 2 dB Teilung.
    Vor- und Endverstärker auftrennbar.
    Optional Teakholzgehäuse.
    23 Dioden.

  • Net weight (2.2 lb = 1 kg)
  • 11 kg / 24 lb 3.7 oz (24.229 lb)
  • Price in first year of sale
  • 1,698.00 DM
  • External source of data
  • erb
  • Mentioned in
  • -- Original prospect or advert (1969 Sony Hi-Fi-Komponenten katalog)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (1971 Sony Gesamtprogramm katalog)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service manual Sony TA-1120A)

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