Pioneer SX-550

Data

General

• Manufacturer: Pioneer
• Model: SX-550

Type: Receiver

• Years of manufacture: 1976 - 1978
• Manufactured in: partly Korea and Belgium
• Color: front silver, wooden cabinet
• Remote control: no
• Power consumption: 185 W max.
• Dimensions: 448 x 141 x 307 mm (WxHxD)
• Weight: approx. 9.4 kg
• Original price approx.: 275 $, 980 DM

Connections

• Number of inputs:
  • Phono: 2.5 mV, 50 kOhm, max. 200 mV at 1 kHz.
  • Microphone: 7.5 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

Amplifier

• Continuous power (at distortion):
  • 8 Ohm: 2 x 20 W

4 Ohm: 2 x 20 W

• Dynamic power:
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: < 0.3%
• Attenuation factor: 25 (at 8 Ohm)
• Frequency response:
  • Phono: 30 - 15,000 Hz, ± 0.3 dB
  • High Level: 10 - 60,000 Hz (+0.5 dB, -1 dB)

Signal-to-noise ratio:

• • Phono: 70 dB
  • High Level: 90 dB
• Tone control:
  • Bass at 100 Hz: + 9 dB, - 10 dB
  • Treble at 10 kHz: ± 8 dB
• Loudness: yes, +6 dB at 100 Hz, +3 dB at 10 kHz

Tuner

• Reception: FM/MW
• Frequencies:
  • FM: 88 - 108 MHz
  • MW: 535 - 1605 KHz
• Input sensitivity:
  • FM: 2.0µV
  • 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: 70 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: 90 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-550

• Picture: Pioneer SX-550

• Picture: Pioneer SX-550

Links

• External Link: "Hifi Archive" website: [1]

• External link: "Pioneer Vintage" website: [2]

• External link: "Classic Audio" website: [3]

• http://audio.mezei.fr/pages/PioneerSX550.html