Rotel RX-803 AM/FM Stereo Receiver, 1977, made in Japan

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General

• Manufacturer: Rotel
• Model: RX-803
• Years of construction: 1976 - 1981
• Made in: Japan
• Color: silver, metal case with handles
• Remote control: no
• Power consumption:
• Dimensions (WxHxD): 490 x 145 x 430 mm
• Weight: 16 kg
• New price approx .: 550 US $, 1,800 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
  • Main In: 1.5 V, 50 kOhm
  • Antenna FM (75/300 Ohm), MW (300 Ohm)
• Number of exits:
  • Tape Rec 1, 2: 350 mV, 3.3 kOhm
  • Tape Rec DIN: 120 mV, 90 kOhm
  • Pre Out:
  • Headphone:
  • 2 pairs of speakers

Technical specifications

amplifier

• Continuous output (with distortion factor)
  • 8 ohms: 2x 80 watts (20 Hz - 20,000 Hz)
  • 4 ohms: 2x 120 watts (1 kHz)
• Dynamic performance
  • 8 ohms:
  • 4 ohms:
• Frequency response: 5 Hz - 40 kHz, ± 3 dB, 8 ohms, both channels rated power
• Total harmonic distortion: <0.1%
• Damping factor: 80 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
• Low filter (subsonic): - 12 dB / octave at 15 Hz
• Muting: 0 dB, - 15 dB

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: 1.5 µV (IHF)
• Total harmonic distortion: 0.3% (mono), 0.5% (stereo)
• Signal-to-noise ratio:
  • Mono: 70 dB
  • Stereo: 65 dB
• Channel separation: 47 dB
• Selectivity: 75 dB
• Single frequency selection: 1.5 dB
• Spurious selection:> 90 dB
• Image frequency attenuation:> 100 dB
• IF attenuation:> 100 dB (at 98 MHz)
• AM suppression: 60 dB

Special equipment

• Tape dubbing
• Muting

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