Kenwood KR-8140

Data

General

• Manufacturer: Kenwood
• Model: KR-8140
• Type: Receiver
• Years of manufacture: 1970 - 1973
• Made in: Japan
• Color: silver
• Remote control: no
• Power consumption: 400 W (full output), 35 W (no signal)
• Dimensions (WxHxD): 480 x 146 x 406 mm
• Weight: 15,1 kg
• Original price approx:

Connections

• Number of inputs:
  • Phono: 2.5 mV - 5 mV / 50 kOhm (max. 100 mV).
  • AUX: 200 mV / 50 kOhm
  • AUX 4-channel: 200 mV / 50 kOhm
  • Tape Play: 200 mV / 50 kOhm
  • Antenna FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM.
• Number of outputs:
  • Tape Rec: 200 mV / 50 kOhm
  • Headphones Front / Rear: 2 x 6.3 mm jack plug
  • 2 speaker pairs each front and rear

Technical Data Tuner Part

• Reception: FM, MW
• Frequencies:
  • FM: 88 - 108 MHz

MW: 520 - 1610 kHz

• Frequency response: 20 - 15,000 Hz (± 1.2 dB, FM)
• Input sensitivity:
  • FM: 1.7 µV (IHF)

MW: 20 µV Distortion factor:

• • FM: 0.5% (mono), 0.8% (stereo).
• Signal-to-noise ratio:
  • FM: 65 dB (stereo)

MW: 50 dB

• Channel separation:
  • FM: 40 dB (at 1 kHz)
• Selectivity: (IHF)
  • FM: 55 dB
  • MW: 25 dB
• Equal wave selection:
  • FM: 3.0 dB
• Spurious wave selection:
  • FM: 45 dB
• Image frequency attenuation:
  • FM: 60 dB
  • MW: 45 dB

IF attenuation:

• • FM: 90 dB
• AM suppression: 60 dB
• Fixed station memory: 5x FM

Technical Data Amplifier Part

• Continuous power Quadro mode:
  • 8 Ohm: 4 x 26 W (1 kHz)

4 Ohm: 4 x 35 W (1 kHz)

• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Continuous power stereo operation:
  • 8 Ohm:
  • 4 Ohm:
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: 0.8% (at rated power)
• Attenuation factor: 40 (8 Ohm)
• Frequency response:
  • Preamplifier: 20 - 40,000 Hz ± 1 dB)
  • Power bandwidth: 18 - 30,000 Hz
• Signal-to-noise ratio:
  • Phono: 63 dB
  • AUX, Tape: 75 dB
• Tone control:
  • Bass: ± 12 dB at 100 Hz
  • Mids: ± 6 dB at 1 kHz

Treble: ± 12 dB at 10 kHz

• Loudness: + 10 / + 5 dB (100 Hz / 10 kHz)
• Low Filter (Subsonic): - 8 dB at 100 Hz
• High Filter: - 6 dB at 10 kHz
• Mute: FM muting
• AFC: yes

Special Features

• 5 FM preset buttons
• Switch for 4-channel SQ, Matrix, Mix / AUX / Mono
• Midrange control
• Mono / Stereo switch
• Level control for tape on rear panel
• Tape Dubbing Output
• Pre-Out Output Front, Rear

Comments

• Other models in the same series:
  • Kenwood KR-5340
  • Kenwood KR-6140
  • Kenwood KR-6140 A
  • Kenwood KR-6340
  • Kenwood KR-7340
  • Kenwood KR-8040
  • Kenwood KR-8140
  • Kenwood KR-8340
  • Kenwood KR-9040
  • Kenwood KR-9340

• Introduction to Kenwood 4-channel playback technology
  • Introduction Kenwood 4-channel playback technology

Pictures

• Picture: Kenwood KR-8140

• Picture: Kenwood KR-8140 backside