Marantz SD 7

Data[edit]

General

  • Manufacturer: Marantz
  • Model: SD 7
  • Type: Cassette Tape Deck
  • Years of manufacture: 1981 - 1982
  • Made in: Japan
  • Color: Black
  • Remote control: yes, cable remote control RMC-1 optional
  • Power consumption:
  • Dimensions (WxHxD): 416 x 146 x 243 mm.
  • Weight: 9,5 kg
  • Original price approx.: 2'498 DM
    • Rack handles: RHA-8 optional
    • Wooden cabinet: optional


Connections

  • Inputs:
    • Microphone 1, 2: 0.15 mV, 6.8 kOhm

Line In: 30 mV, 35 kOhm

  • Outputs:
    • Line Out: 650 mV, 1.2 kOhm
    • Headphones:


Specifications

  • Motors: 2, DC-Servo
  • Heads: 3, Sendust / Ferrite
  • 2 belt speeds: 4,75cm/s, 9,5cm/s
  • Synchronous speed fluctuations:
    • 4.75cm/s: 0.05% (WRMS), 0.09% (DIN)
    • 9.5cm/s: 0.03% (WRMS), 0.06% (DIN)
  • Frequency response at 4.75cm/s:
    • Type I - Normal: 25 - 17'000 Hz

Type II - Chrome: 25 - 17'500 Hz Type III - FeCr : 25 - 18'000 Hz

    • Type IV - Metal: 25 - 20'000 Hz
  • Frequency response at 9.5cm/s:
    • Type I - Normal: 25 - 21'000 Hz
    • Type II - Chrome: 25 - 23'000 Hz

Type III - FeCr : 25 - 23'500 Hz

    • Type IV - Metal: 25 - 25'000 Hz
  • Signal to noise ratio:
    • 4.75cm/s: 54 dB metal, with Dolby 64 dB
    • 9.5cm/s: 63 dB metal, with Dolby 72 dB
  • Distortion factor: < 1% (0 dB)
  • Rewind speed: less than 85 sec (C 60)


Special Features

  • Rear band control
  • Display 2 rows of LED's


Remarks[edit]







Pictures[edit]

  • Extract from brochure: Marantz SC-7, SD-7, SM-7, ST-7

Marantz SC-SD-SM-ST-7-Prospekt-1.jpg


  • Excerpt from brochure: Marantz SC-7, SD-7, SM-7, ST-7

Marantz SC-SD-SM-ST-7-Prospekt-2.jpg


Reports[edit]

Links[edit]

  • External link to website "The Vintage Knob": [[1]]