Integrated Stereo Amplifier RA-712

Rotel, The, Co., Ltd.; Tokyo

  • Année
  • 1976 ?
  • Catégorie
  • Amplificateur BF ou mélangeur BF
  • Radiomuseum.org ID
  • 150275

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 Spécifications techniques

  • No. de transistors
  • Semi-conducteurs présents
  • Semi-conducteurs
  • Principe général
  • Amplification audio
  • Gammes d'ondes
  • - sans
  • Tension / type courant
  • Alimentation Courant Alternatif (CA) / 100 or 120 or 220 or 240 Volt
  • Haut-parleur
  • - Ce modèle nécessite des HP externes
  • Puissance de sortie
  • 80 W (110 W max.)
  • Matière
  • Boitier en bois
  • De Radiomuseum.org
  • Modèle: Integrated Stereo Amplifier RA-712 - Rotel, The, Co., Ltd.; Tokyo
  • Forme
  • Appareil d'étagère
  • Dimensions (LHP)
  • 430 x 140 x 330 mm / 16.9 x 5.5 x 13 inch
  • Remarques
  • A hi-fi stereo integrated amplifier with power output of 2 x 40 watts RMS into 8 ohms.  Rotary controls for Bass, Treble, Volume and Balance, With Left and Right Power Output  Meters, rotary switches for Speakers (1, 2, 1+2) and Function (Tuner, Phono, Aux). press buttons for Power, Tape Monitor (1, 2, Dub),  Low Filter and Loudness, RCA phono sockets for Phono MM, Tuner and Aux input and for Tape Monitor 1 input/output, an alternative DIN socket for Phono MM input and a DIN socket for Tape Monitor 2 input/output, terminals for 2 pairs of loudspeakers, 2 switched AC outlets (not available on UK and Scandinavian models) and a jack for Headphones. The pre-amplifier and power amplifier stages can by separated by the removal of the two jumper pins from the RCA phono sockets marked Pre-Amp Out and Main Amp In.

    Specification  
    Power Amplifier Section  
    Continuous Power Output 55 watts per channel, min. RMS,
    both channels driven into 4 Ω with  
    no more than 0.4% total harmonic distortion or
    40 watts per channel, min. RMS
    both channels driven into 8 Ω with
    no more than 0.5% total harmonic distortion
    from 20 to 20,000 Hz
    Intermodulation Distortion Less than 0.2% at rated output
    Frequency Response 5 to 95,000 Hz ±3dB at 1 watt per channel
    Input Sensitivity/Impedance 900mV/33kΩ
    Damping Factor 50 at 1kHz
    Pre-Amplifier Section  
    Output Voltage 900mV (rated), 1.8V (maximum)
    Harmonic Distortion Less than 0.08% at rated output voltage
    Frequency Response 10 to 50,000Hz ±1dB
    Signal to Noise Ratio
    (IHF, 'A' closed circuit network)
    PHONO 1,2        75dB
    Tape, Aux. Tuner 94dB
    Residual             0.5mV
    Input Sensitivity/Impedance
    (Rated output at 1kHz)
    Phono                2.5 mV/47kΩ
    Tape                  150 mV/50kΩ
    Aux, Tuner         150 mV/50kΩ
    Output Level Tape out (RCA)   350 mV/3.3kΩ
    Tape out (DIN)     60 mV/60kΩ
    Phono Equalization RIAA STD ±0.5dB
    Lower Filter 12dB/oct at 40Hz
    Crosstalk 45dB (overall)

    Versions/Power Requirements
    100/120/220/240 V AC 50-60Hz Switchable

    Power Consumption:  380 watts max.

    Stereo-Verstärker, 2 x 55 Watt Sinus/4 Ohm, max. Klirrfaktor 0,4%; 5-95.000 Hz.

  • Poids net
  • 11 kg / 24 lb 3.7 oz (24.229 lb)
  • Source
  • -- Original prospect or advert
  • Schémathèque (1)
  • - - Manufacturers Literature (Technical Manual for the RA-712 dated Dec 76)
  • Schémathèque (2)
  • - - Manufacturers Literature (Owner's Manual for the RA-712)
  • Auteur
  • Modèle crée par Franz Scharner. Voir les propositions de modification pour les contributeurs supplémentaires.

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