Pioneer SX-850

Data

General

  • Manufacturer: Pioneer
  • Model: SX-850

Type: Receiver

  • Years of manufacture: 1976 - 1978
  • Made in: Japan
  • Color: front silver, wooden cabinet
  • Remote control: no
  • Power consumption: 470 W max.
  • Dimensions: 526.6 x 173 x 411.5 (WxHxD)
  • Weight: 19.1 kg
  • Original price approx.: 550 $, 2'198 DM


Connections

  • Number of inputs:
    • Phono 1, 2: 2.5 mV, 50 kOhm, max. 200 mV at 1 kHz.
    • Microphone: 6.5 mV, 50 kOhm

Aux: 150 mV, 50 kOhm

    • Tape Play 1, 2: 150 mV, 50 kOhm

Tape Play DIN: 150 mV, 50 kOhm Dolby NR Adapter: 150 mV, 50 kOhm

    • Antenna FM/MW: 75, 300 Ohm / 300 Ohm
    • Main In: 1 V, 50 kOhm
  • Number of outputs:
    • Tape Rec 1, 2: 150 mV
    • Tape Rec DIN: 30 mV, 80 kOhm

Dolby NR Adapter: 150 mV

    • Pre Out: 1 V, 1 kOhm
    • Headphones (6.3mm jack):
    • 2 speaker pairs


Technical Data

Amplifier

  • Continuous power (at distortion):
    • 8 Ohm: 2x 65 W

4 Ohm: 2x 85 W

  • Dynamic power:
    • 8 Ohm:
    • 4 Ohm:
  • Total harmonic distortion: < 0.1%
  • Attenuation factor: 25 (at 8 Ohm)
  • Frequency response:
    • Phono: 30 - 15,000 Hz, ± 0.2 dB.

High Level: 15 - 40,000 Hz (+0 dB, -1 dB)

    • Power Amplifier: 7 - 90,000 Hz

Signal-to-noise ratio:

    • Phono: 75 dB

High Level: 90 dB

    • Power amplifier: 100 dB
  • Tone control:
    • Bass at 100 Hz:
      • Crossover frequency 200 Hz: ± 7 dB
      • Crossover frequency 400 Hz: ± 10 dB

Treble at 10 kHz:

      • Transition frequency 2.5 kHz: ± 10 dB
      • Crossover frequency 5 kHz: ± 7 dB
  • Loudness: yes, +6 dB at 100 Hz, +3 dB at 10 kHz
  • Low Filter: yes, 6 dB / octave at 30 Hz
  • High Filter: yes, 6 dB / octave at 8 kHz
  • Mute: yes, -20 dB


Tuner

  • Reception: UKW/MW
  • Frequencies:
    • FM: 88 - 108 MHz
    • MW: 535 - 1605 KHz
  • Input sensitivity:
    • FM: 1.8µV
    • MW: 15µV
  • Frequency response: 30 - 15,000 Hz (+0.3 dB, -1 dB)
  • Distortion factor:
    • FM, 1 kHz: < 0.15% (mono), < 0.3% (stereo).
  • Signal-to-noise ratio:
    • FM: 72 dB (mono), 67 dB (stereo)

MW: 55 dB

  • Channel separation: 50 dB (1kHz)
  • selectivity: 80 dB
  • Co-wave selection: 1.0 dB
  • Spurious wave selection:
    • FM: 80 dB

MW: 35 dB

  • Image frequency attenuation:
    • FM: 85 dB
    • MW: 65 dB
  • IF attenuation:
    • FM: 100 dB
    • MW: 85 dB
  • AM suppression: 55 dB


Special Features

  • Pre- and power amplifier separable (Main In/Pre Out)
  • Microphone (6.3mm jack)


Remarks


Pictures

  • Image: Pioneer SX-850

Pioneer SX-850-1.jpg


Reviews

Links

  • External Link: "Hifi Archive" website: [1]
  • External link: "Radio Museum" website: [2]
  • External link: "Pioneer Vintage" website: [3]
  • External link: "Classic Audio" website: [4]