Pioneer SX-525

Data

General

  • Manufacturer: Pioneer
  • Model: SX-525

Type: Receiver

  • Years of manufacture: 1972 - 1974
  • Made in: Japan
  • Color: front silver, wooden cabinet
  • Remote control: no
  • Power consumption: 120 W max.
  • Dimensions: 450 x 145 x 360 (WxHxD)
  • Weight: 8 kg
  • Original price approx.: 1'080 DM


Connections

  • Number of inputs:
    • Phono MM: 2.7 mV / 45 kOhm
    • Microphone (6.3mm jack): 6 mV / 100 kOhm
    • Aux: 200 mV, 70 kOhm
    • Tape 1, 2 Play: 200 mV / 70 kOhm

Tape Play (DIN): 200 mV / 70 kOhm

    • Antenna (FM: 75, 300 Ohm, MW: 300 Ohm).
  • Number of outputs:
    • Tape Rec 1, 2: 200 mV

Tape (DIN): 30 mV

    • Headphones (6,3mm jack)
    • 2 pairs of loudspeakers


Technical Data

Amplifier

  • Continuous power (at distortion):
    • 8 Ohm: 2x 17 W

4 Ohm: 2x 21 W

  • dynamic power:
    • 8 Ohm: 52 W
    • 4 Ohm: 72 W
  • Total harmonic distortion: < 1
  • Attenuation factor: 40 (8 Ohm, 1 kHz)
  • Frequency response:
    • Phono, RIAA: 20 - 20'000 Hz

High level: 15 - 30'000 Hz, ± 1 dB

  • Signal-to-noise ratio:
    • Phono, RIAA: 75 dB
    • High level: 85 dB
  • Tone control:
    • Bass: + 12.5 dB, - 12 dB at 100 Hz
    • Treble: + 8 dB, - 8.5 dB at 10 kHz
  • Loudness: + 11.5 dB at 100 Hz, + 6 dB at 10 kHz.
  • Subsonic:
  • High Filter:
  • Mute:


Tuner

  • Reception: FM, MW
  • Frequencies:
    • FM: 88 - 108 MHz
    • MW: 525 - 1605 kHz
  • Input sensitivity:
    • FM: 2.2 µV

MW: 10µV

  • All other specifications for VHF
  • Frequency response: 20 - 15'000 Hz, + 0 dB, - 1 dB

Distortion factor:

    • FM: < 0.6% (mono), < 0.8% (stereo).
  • Signal-to-noise ratio:
    • FM: 65 dB

AM: > 50 dB

  • Channel separation: > 40 dB (1 kHz)
  • selectivity: > 45 dB
  • Common mode selection: 3.0 dB
  • Spurious wave attenuation: > 90 dB (98 MHz)
  • IF attenuation: > 80 dB (90 MHz)

IF attenuation:

    • FM: > 100 dB (90 MHz)

AM: > 70 dB

  • AM suppression: 50 dB


Special Features

  • Pre- and power amplifier separable (Main In/Pre Out)


Remarks







Pictures

  • Extract from brochure: Pioneer SX-525

Pioneer SX-525-Prospekt-1.jpg


Reports

Links