Pioneer C-21

Data

General

  • Manufacturer: Pioneer
  • Model: C-21
  • Model range: Series 20
  • Type: Preamplifier
  • Years of manufacture: 1976 - 1981
  • Made in: Japan
  • Color: Metal Silver
  • Power consumption: 10 W
  • Dimensions: 420 × 81 × 357 mm (WxHxD)
  • Weight: 6.3 kg
  • Original price approx.: 1'000 DM (1978)


Connections

  • Number of inputs:
    • Phono MM: 2.5 mV / 100kOhm.
      • Phono input resistance switchable: 100 Ohm / 10k / 25k / 50k / 75k / 100kOhm
      • Phono input capacitance switchable: 100 / 150 / 200 / 300 / 400 / 500pF
      • Phono max. voltage: 300mV (0,01% THD, 1Khz)
    • AUX 1, 2: 150mV / 50kOhm
    • Tape Play: 150mV / 50kOhm
  • Number of outputs:
    • Tape Rec: 150mV / 1kOhm
    • Pre-Out:
      • 1V / 450 Ohm (50kOhm, nominal).
      • 20V / 150 Ohm (50kOhm, max.)


Technical Data

  • Frequency response:
    • Phono: 20 Hz - 20,000 Hz ± 0.2 dB.
    • AUX 1: 10 Hz - 100,000 Hz + 0 -0.2 dB
    • AUX 2: 3 Hz - 300,000 Hz + 0 -1.0 dB

Distortion factor:

    • phono: 0.006 %

AUX: 0.005 % * SIGNAL TO NOISE RATIO

  • Signal-to-noise ratio:
    • > 80dB (phono MM)
    • > 100dB (tuner, tape, aux)
  • stereo channel separation:
  • Tone control: no
  • Low Filter: 15 Hz (6 dB/octave)


Special Features

  • Level control L + R


Remarks


Pictures

  • Image: Pioneer C-21 Front

Pioneer C-21-1.jpg


  • Picture: Pioneer C-21 back

Pioneer C-21-2.jpg


  • Brochure excerpt: Pioneer Combi Series 20 with C-21, M-22, D-23, U-24.

Pioneer C21-M22-D23-U24 1979-80-2.jpg


Reports

  • Report on "Good Old Hifi": [[1]]
  • Report on "Mackers": [[2]]


Links

  • External link: "Audio Database, Japan" website: [4]