Kyocera R-451

Data

General

• Manufacturer: Kyocera
• Model: R-451
• Type: Receiver
• Years of manufacture: 1982 - 1985
• Made in: Japan
• Color: metal silver / gray, wood side panels
• Remote control: yes, system remote control
• Power consumption: 175 watts
• Dimensions: 460 x 110 x 340 mm (WxHxD)
• Weight: 8.2 kg
• Original price approx.: 450 US-$, 1'350 DM (including system remote control RC-101, signal transmitter RT-102)

Connections

• Number of inputs:
  • Phono MM: 2.5 mV / 47 kOhm, 100 pF, 150 mV max.
  • High level 1 - 5: 150 mV / 30 kOhm
  • Main In: 250 mV / 47 kOhm

Antenna MW 300 Ohm Balanced Antenna VHF 300 Ohm Balanced Antenna VHF 75 Ohm Unbalanced

• Number of outputs:
  • Rec Out: 250 mV / 560 Ohm

Pre Out: 250 mV / 560 Ohm, 25 V max.

• • Headphones
  • 2 pairs of loudspeakers

Technical Data

Amplifier

• Continuous power (at distortion)
  • 8 Ohm: 2x 45 W (RMS, 20 - 20'000 Hz at 0.02 %)
  • 4 Ohm:
• dynamic power
  • 8 Ohm:
  • 4 Ohm:
  • 2 Ohm:
• Total harmonic distortion: 0.02 %
• Attenuation factor: 50 at 8 Ohm
• Frequency response:
  • Phono: 20 Hz - 20 kHz, ± 0.25 dB
  • High level: 10 - 100 kHz, ± 1.5 dB
• Signal-to-noise ratio:
  • Phono MM: 80 dB
  • High level: 95 dB
• Tone control:
  • Bass: ± 10 dB, switchable 100 Hz/ 200 Hz

Treble: ± 10 dB, switchable 5 kHz, 10 kHz

• Loudness: + 7 dB at 100 Hz, + 3.5 dB at 10 kHz
• High Filter: - 6 dB, 6 dB / octave at 10 Hz
• Low Filter (Subsonic): - 3 dB, 12 dB / octave below 18 Hz
• Mute: no

Tuner

• Reception: FM/MW
• Frequencies:
  • FM: 88 - 108 MHz
  • MW: 535 - 1605 KHz
• Input sensitivity:
  • FM: 1.9µV
  • MW: 300µV
• Frequency response: 30 - 15'000 Hz (+ 0 dB, - 1 dB)
• Distortion factor:
  • FM (1 kHz): < 0.08% (mono), < 0.12% (stereo).
• Signal-to-noise ratio:
  • FM:
    • Mono: 77 dB
    • Stereo: 72 dB

MW: 45 dB

• Channel separation: 48 dB (1 kHz)
• selectivity: 55 dB
• Co-wave selection: 1.2 dB
• Spurious wave selection:
  • FM: 88 dB
• Mirror frequency attenuation:
  • FM: 68 dB

MW: 30 dB IF attenuation:

• • FM: 110 dB
  • MW: 60 dB
• AM suppression: 58 dB
• Fixed station memory: 6x FM, 6x MW

Special Features

• FM muting
• Fixed station memory: 6x FM, 6x MW

Remarks

• Other models in the same series:
• Preamplifier:
• Kyocera C-901

• Power amplifier:
• Kyocera B-901

• Receiver:
• Kyocera R-451
• Kyocera R-651
• Kyocera R-851

• CD player
• Kyocera DA-01

• Cassette Tape Deck:
• Kyocera D-601
• Kyocera D-801

• Record Player:
• Kyocera PL-601
• Kyocera PL-701
• Kyocera PL-901

• System Remote Control
• Kyocera RC-101

Pictures

• Picture: Kyocera R-451

• Excerpt from advertisement: Kyocera R-451