Rotel RX-503

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Data[edit]

General

  • Manufacturer: Rotel
  • Model: RX-503
  • Years of manufacture: 1976 - 1981
  • Made in: Japan
  • Color: Silver, metal housing with handles
  • Remote control: no
  • Power consumption:
  • Dimensions (WxHxD): 480 x 145 x 325 mm.
  • Weight: 10 kg
  • Original price approx.: 340 US-$, corresponds to about 1'000 DM


Connections

  • Number of inputs:
    • Phono MM: 2 mV, 50 kOhm.

Aux: 150 mV, 50 kOhm, max. 15 V

    • Tape Play 1, 2: 150 mV, 50 kOhm, max. 15 V
    • Antenna FM (75/300 Ohm), MW (300 Ohm).
  • Number of outputs:
    • Tape Rec 1, 2: 350 mV, 3.3 kOhm.
    • Tape Rec DIN: 120 mV, 90 kOhm
    • Headphones:
    • 2 pairs of speakers


Technical Data

Amplifier

  • Continuous power (at distortion)
    • 8 Ohm: 2x 35 Watt (20 Hz - 20'000 Hz)
    • 4 Ohm: 2x 50 Watt (1 kHz)
  • Dynamic power
    • 8 Ohm:
    • 4 Ohm:
  • Frequency response: 10 Hz - 50 kHz, ± 3 dB
  • Distortion factor: < 0.1 %
  • Attenuation factor: 35 at 8 ohms
  • Signal-to-noise ratio:
    • Phono MM: 75 dB

High level: 90 dB

  • Tone control

Bass: ± 10 dB at 100 Hz Treble: ± 10 dB at 10 kHz

  • Loudness: + 10 dB at 100 Hz / + 3 dB at 10 kHz
  • High Filter: - 12 dB / octave at 8 kHz


Tuner

  • Reception: FM, MW
  • Frequencies:
    • FM: 87 - 108 MHz

MW: 525 - 1'605 kHz

  • Frequency response: 30 - 15'000 Hz, ± 0,5 dB
  • Input sensitivity: 1.7 µV (IHF)
  • Distortion factor: 0.3 % (mono), 0.5 % (stereo)
  • Signal-to-noise ratio:
    • Mono: 70 dB

Stereo: 65 dB

  • Channel separation: 47 dB
  • Selectivity: 75 dB
  • Co-wave selection: 1.5 dB
  • Spurious wave selection: > 90 dB
  • Image frequency attenuation: > 100 dB
  • IF attenuation: > 100 dB (at 98 MHz)
  • AM suppression: 50 dB


Special Features

  • Tape dubbing
  • Muting


Remarks[edit]


Pictures[edit]

  • Extract from brochure: Rotel RX-503

Datei:Rotel RX-503-Prospekt-1.jpg


Reports[edit]

Links[edit]