• Année
  • 1997 ?
  • Catégorie
  • Amplificateur BF ou mélangeur BF
  • Radiomuseum.org ID
  • 308773

 Spécifications techniques

  • No. de transistors
  • Semi-conducteurs présents
  • Semi-conducteurs
  • Principe général
  • Amplification audio
  • Gammes d'ondes
  • - sans
  • Particularités
  • Equipement HIFI
  • Tension / type courant
  • Alimentation Courant Alternatif (CA) / 115 or 230 Volt
  • Haut-parleur
  • - Ce modèle nécessite des HP externes
  • Puissance de sortie
  • 260 W (360 W max.)
  • Matière
  • Boitier métallique
  • De Radiomuseum.org
  • Modèle: Power Amplifier [RB-981] - Roland Electronics Co. Ltd.,
  • Forme
  • Appareil d'étagère
  • Dimensions (LHP)
  • 440 x 121 x 327 mm / 17.3 x 4.8 x 12.9 inch
  • Remarques
  • A 2 x 130 watt Hi-Fi stereo power amplifier. On the front, a press button for Power and indicators for Power on, Protection and Bridged Mono. On the back, Left and Right input RCA sockets for connection to a preamplifier. In order to use the RB-981 in bridged mode, three “jumper” connectors inside the amplifier must be moved from one set of pins to another. In bridged mode the Left and Right channels are bridged into a into a single mono amplifier and the cable from the preamplifier output is connected to the Left input RCA socket. Four terminals to connect one stereo pair of loudspeakers, or to one loudspeaker in bridged mode where the wires to the loudspeaker are connected to the positive terminals of the left and right channels.

    Continuous Power Output :
    130 watts per channel, min. RMS both channels driven into 8Ω
    from 20Hz to 20kHz with < 0.03% Total Harmonic Distortion
    170 watts per channel, min. RMS both channels driven into 4Ω
    from 20Hz to 20kHz with < 0.05% Total Harmonic Distortion
    Bridged Mono Power Output :
    360 watts mono, min. RMS driven into 8Ω
    from 20Hz to 20kHz with < 0.1% Total Harmonic Distortion
    Total Harmonic Distortion ......:  < 0.03%
    Intermodulation Distortion .... :  < 0.03% (60Hz : 7kHz, 4:1)
    Damping Factor ................... :  500 (20Hz - 20kHz, 8Ω)
    Speaker load impedance  .....:  4Ω minimum Stereo, 8Ω minimum Bridged mode
    Input Sensitivity/Impedance ..:  1.0V/33kΩ
    Frequency Response ...........:  4Hz - 100kHz, +0.5dB, -3dB
    Signal to Noise Ratio ............:  120dB (IHF, A Network)
    Power Consumption .............:  400 watts

    Versions/Power Requirements
    115 V AC 60Hz
    230 V AC 50Hz

  • Poids net
  • 10.3 kg / 22 lb 11 oz (22.687 lb)
  • Prix de mise sur le marché
  • 600.00 USD
  • Schémathèque (1)
  • - - Manufacturers Literature (Owner's Manual for the RB-981 Stereo Power Amplifier)
  • Schémathèque (2)
  • - - Manufacturers Literature (Technical Manual for the RB-981 Stereo Power Amplifier)
  • Auteur
  • Modèle crée par Howard Craven. Voir les propositions de modification pour les contributeurs supplémentaires.

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