Kenwood KR-6170 Jumbo

Data

General:

• Manufacturer: Kenwood
• Model: KR-6170 Jumbo
• Year of manufacture: 1971 - 1972
• Made in: Japan
• Color: Silver
• Remote control: Foot switch
• Power consumption: 240 watts max. 45 W min.
• Dimensions: 553 x 171 x 413 mm (WxHxD)
• Weight: 16 kg
• Original price approx.: 145'000 Yen (Japan, 1971), 2'100 DM

Connections:

• Number of inputs:
  • 2x phono MM (RCA): 2.5 mV / 50 kOhm.
  • Microphone (6,3 mm jack, front): 2,0 mV / 10 kOhm
  • Guitar (6.3 mm jack, front): 15 mV / 30 kOhm

2x AUX (Cinch): 150 mV / 100 kOhm

• • Tape Play/Rec A (Chinch/DIN): 150 mV / 100 kOhm
  • Tape Play/Rex B (Cinch): 150 mV / 100 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).
  • 2 Channel Out (RCA, front/rear)
  • 2x headphones (6.3 mm jack, front)
  • 4 speaker pairs (A, B, C, D)

Foot Switch

Technical Data:

Tuner:

• Reception: FM, MW
• Frequencies:
  • FM: 87.5 - 108 MHz
  • MW: 525 - 1,605 kHz
• Input sensitivity:
  • FM: 1.9 µV

MW: 25 µV Distortion factor:

• • FM: 0.5% (mono), 0.8% (stereo).

Signal-to-noise ratio:

• • FM: 60 dB
  • MW: 25 dB

Amplifier:

• Continuous power
  • 8 Ohm: 2x 40 Watt
  • 4 Ohm: 2x 50 Watt
• Dynamic power
  • 8 Ohm: 2x 110 Watt
  • 4 Ohm: 2x 150 Watt
• Total harmonic distortion: 0.5 % (at nominal power)
• Attenuation factor: 50 (8 Ohm)
• Frequency response:
  • Preamplifier: 20 - 40,000 Hz (± 1.5 dB)
  • Power bandwidth: 17 - 30,000 Hz
• Signal-to-noise ratio:
  • Phono MM: 65 dB
  • Microphone: 58 dB
  • AUX, Tape: 75 dB
• Tone control:
  • Bass: ± 10 dB at 100 Hz

Treble: ± 10 dB at 10 kHz

• Loudness: + 10/ + 5 dB (100 Hz/ 10 kHz)
• Mute: FM muting

Special Features

• Electronic rhythm encoder with 12 different rhythms and 5 percussions
• Reverb facilities with selector switch and knob
• Echo output connections for 4-channel playback
• 4 speaker pair connections (A, B, C, D and any combination)
• 3-stage power limiter (50-watt, 100-watt and full power) to protect speakers
• 2-hour timer with automatic off switch
• 2 headphone jacks (one with independent volume control)
• Illuminated level meters and large transmitter scale
• Multiple presence switches for all programs
• 2 input jacks each for guitar and microphone with microphone mix control
• 2 pairs of tape monitor circuits
• Foot switch for rhythm generator and dynamic microphone as accessories

Pictures

• Kenwood KR-6170 front

• Kenwood KR-6170 rear

• Kenwood KR-6170 in original box with instruction manual, foot switch and microphone MC-501.

• Kenwood KR-6170 original microphone MC-501

• Kenwood KR-6170 original box

Reviews

• Other models in the same series:
  • Kenwood KR-5170
    • Kenwood KR-5170

Links

• External link: Kenwood KR-6170 brochure: [1]

• External Link: Audio Heritage Japan website: [2]