Pioneer SX-650

Data

General

• Manufacturer: Pioneer
• Model: SX-650

Type: Receiver

• Years of manufacture: 1976 - 1978
• Manufactured in: partly Korea and Belgium
• Color: front silver, wooden cabinet
• Remote control: no
• Power consumption: 350 W max.
• Dimensions: 480 x 149 x 371 mm (WxHxD)
• Weight: approx. 13.1 kg
• Original price approx.: 325 $, 1'270 DM

Connections

• Number of inputs:
  • Phono: 2.5 mV, 50 kOhm, max. 200 mV at 1 kHz.
  • Microphone: 5 mV, 50 kOhm

Aux: 150 mV, 50 kOhm

• • Tape Play 1, 2: 150 mV, 50 kOhm

Tape Play DIN: 150 mV, 50 kOhm

• • Antenna FM/MW: 75, 300 Ohm / 300 Ohm
• Number of outputs:
  • Tape Rec 1, 2: 150 mV
  • Tape Rec DIN: 30 mV, 80 kOhm
  • Headphones (6.3mm jack):
  • 2 speaker pairs

Technical Data

General

• Continuous power (at harmonic distortion)

8 Ohm: 2 x 35 W 4 Ohm: 2 x 40 W

• Dynamic power:
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: < 0.3%
• Attenuation factor: 30 (at 8 Ohm)
• Frequency response:
  • Phono: 30 - 15,000 Hz, ± 0.2 dB.
  • High Level: 10 - 50,000 Hz (+0 dB, -1 dB).
• Signal-to-noise ratio:
  • Phono: 70 dB

High Level: 90 dB

• Tone control:
  • Bass at 100 Hz: + 8 dB, - 7 dB
  • Treble at 10 kHz: + 7 dB, - 6 dB
• Loudness: yes, +6 dB at 100 Hz, +3 dB at 10 kHz
• High Filter: yes, 6 dB / octave at 6 kHz

Tuner

• Reception: FM/MW
• Frequencies:
  • FM: 88 - 108 MHz
  • MW: 535 - 1605 KHz
• Input sensitivity:
  • FM: 1.9µV
  • MW: 15µV
• Frequency response: 30 - 15,000 Hz (+0.2 dB, - 2 dB)
• Distortion factor:
  • FM, 1 kHz: < 0.15% (mono), < 0.3% (stereo).
• Signal-to-noise ratio:
  • FM: 80 dB (mono), 65 dB (stereo)

MW: 50 dB

• Channel separation: 30 dB (1kHz)
• selectivity:
• Co-wave selection: 1.0 dB
• Spurious wave selection: 60 dB
• Mirror frequency attenuation:
  • FM: 65 dB

MW: 40 dB IF attenuation:

• • FM: 95 dB
  • MW: 65 dB
• AM suppression: 50 dB

Special Features

• Microphone (6.3mm jack)

Remarks

• Other models in the same series:
• Pioneer SX-450
• Pioneer SX-550
• Pioneer SX-650
• Pioneer SX-750
• Pioneer SX-850
• Pioneer SX-950
• Pioneer SX-1050
• Pioneer SX-1250

Pictures

• Image: Pioneer SX-650

• Extract from brochure: Pioneer SX-650

Reports

• External link: Good Old Hifi website: [1]

Links

• External Link: "Hifi Archive" website: [2]

• External link: "Pioneer Vintage" website: [3]

• External link: "Classic Audio" website: [4]