Solid State Amplifier model fifteen (15)

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1967
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 150995

 Technical Specifications

  • Number of Transistors
  • 26
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 120; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 120 W (140 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Solid State Amplifier model fifteen - Marantz Sound United LLC;
  • Shape
  • Rack
  • Dimensions (WHD)
  • 15.375 x 5.75 x 8 inch / 391 x 146 x 203 mm
  • Notes

  • A hi-fi stereo power amplifier with power output of 60 watt RMS per channel into 8 ohms or 70 watts RMS per channel into 4 ohms. Two identical monophonic amplifiers, one per channel, each with its own power supply. Overload protection uses lamps.

    Specification  
    Input Signal for Rated Power Output 1 volt rms
    Input Impedance  100KΩ
    Frequency Response Within 1db, 10 - 60KHz
    Power Output 20Hz-20,000Hz, per channel 70 watts rms into 4Ω load
    60 watts rms into 8Ω load
    40 watts rms into 16Ω load
    Damping Factor Greater than 150 with 8Ω load
    Overload Recovery Instantaneous
    Total Harmonic Distortion Less than 0.1% with 4Ω-16Ω load
    typically 0.03% with 8Ω or higher load
    at full rated output, at any frequency
    from 20-20,000 Hz. Distortion decreases
    as output level is lowered.
    Total Noise (shorted input broadband) Better than 90dB below 60 watts into 8Ω
    Power Bandwidth 8Hz-60KHz into 8Ω
    Continuous output at mid-frequencies 70 watts into 8Ω
    Dynamic (music) output at mid-frequencies 85 watts into 8Ω
    Difference in frequency response ±0.05dB

    Power requirements
    120V (105-135V) AC 50/60Hz
    Can be converted to 240V AC (Split primary windings permit adaptation to 210-270V)

    Endverstärker mit 2 x 60 Watt Sinus an 8 Ohm.
    Getrennte Netzteile für jeden Kanal. Überlastschutz mittels Glühlampen.

  • Net weight (2.2 lb = 1 kg)
  • 34 lb (34 lb 0 oz) / 15.436 kg
  • Price in first year of sale
  • 2,580.00 DM
  • Mentioned in
  • HiFi Jahrbuch III 1967/68 Seite 93
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual model fourteen/fifteen)
  • Literature/Schematics (2)
  • -- Original prospect or advert (1968 The Sound of Marantz catalogue)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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