Kenwood KR-4050

Data

General

• Manufacturer: Kenwood
• Model: KR-4050
• Years of manufacture: 1974 - 1976
• Made in: Japan
• Color: Silver
• Remote control: no
• Power consumption: 140 W max.
• Dimensions: 450 x 143 x 350 mm (WxHxD)
• Weight: 10.2 kg
• Original price approx.: 1'200 DM

Connections

• Number of inputs:
  • Phono MM (Cinch): 3.0 mV / 50 kOhm
  • Microphone: 1,5 mV / 50 kOhm
  • 2x Tape In (Cinch/DIN): 200 mV / 45 kOhm
  • AUX (Cinch): 150 mV / 80 kOhm
  • Antenna FM (75/300 Ohm), AM
• Number of outputs:
  • 2x Tape Out (Cinch/DIN): 150 mV / 100 Ohm (Cinch); 30 mV / 80 kOhm (DIN).
  • Headphones (6.3 mm jack, front)
  • 2 pairs of loudspeakers

Technical Data

Amplifier

• Continuous power

8 Ohm: 2x 22 W (20-20,000 Hz) 4 Ohm: 2x 30 W (1 kHz)

• Dynamic power
  • 8 Ohm:
  • 4 Ohm: 82 W
• Total harmonic distortion: 0.2 % (at nominal power)
• Attenuation factor: 50 (8 Ohm)
• Frequency response: 20 - 35'000 Hz
• Signal-to-noise ratio:
  • Phono MM: 60 dB
  • Microphone: 50 dB
  • AUX, Tape: 70 dB
• Tone control:
  • Bass: ±10 dB at 100 Hz

Treble: ±10 dB at 10 kHz

• Loudness: 100 Hz/10 kHz +10/+5 dB
• High Filter: -10 dB/10 kHz
• Low Filter (Subsonic): no

Tuner

• Reception: FM, MW
• Frequencies:
  • FM: 87.5 - 108 MHz
  • MW: 525 - 1,605 kHz
• Frequency response:
• Input sensitivity:
  • FM: 2.0 µV (IHF)

MW: 25 µV Distortion factor:

• • FM: 0.5% (mono), 0.8% (stereo).
• Signal-to-noise ratio:
  • FM: 63 dB (stereo)

MW: 45 dB

• Channel separation:
  • FM: 40 dB (at 1 kHz).
• Selectivity:
  • FM: 55 dB
  • MW: 28 dB
• Equal wave selection:
  • FM: 3.5 dB
• Spurious wave selection:
  • FM: 90 dB
• Image frequency attenuation:
  • FM: 60 dB
  • MW: 45 dB

IF attenuation:

• • FM: 85 dB
  • MW: 35 dB
• AM suppression: 60 dB

Remarks

• Other models in the same series:
• Kenwood KR-1400
• Kenwood KR-2400
• Kenwood KR-3400
• Kenwood KR-4400
• Kenwood KR-5400
• Kenwood KR-6400
• Kenwood KR-7400
• Kenwood KR-9400

Pictures

• Image: Kenwood KR-4050

Reviews

• "Hifi Forum": [Link to HiFi Forum]