Kenwood Model 650

Data

General

• Manufacturer: Kenwood
• Model: Model 650 (identical Model 600, but with bronze-colored front)

Type: Stereo integrated amplifier

• Years of manufacture: 1975 - 1979
• Made in: Japan
• Color: Bronze
• Power consumption: 790 W max.
• Dimensions (WxHxD): 440 x 154 x 388 mm
• Weight: 21.3 kg
• Original price approx.: 2'298 DM

Connections

• Number of inputs:
  • Input sensitivity:
  • Phone 1 MM: 2.5mV, 30 kOhm, 60 kOhm, 100 kOhm, max 220mV.
  • Phone 2 MM: 2.5 - 5mV, adjustable, 50 kOhm, max. 220mV
  • Tuner: 150mV, 50 kOhm
  • AUX 1,2: 150mV, 50 kOhm
  • Tape Play A, B: 150mV, 50 kOhm
• Number of outputs:
  • Outputs:
  • Line: 150mV, 80 kOhm

DIN: 80mV, 150 kOhm

• • Headphones

Technical Data

• Continuous power (at THD)
  • 8 Ohm: 2x 130W (RMS, 20 Hz ... 20 kHz, 0.08% THD), 2x 135W (8 Ohm, 1kHz)
  • 4 Ohm: 2x 150W (4 Ohm, 1kHz)
• Dynamic power
  • 8 Ohm:
  • 4 Ohm: 640 W
• Total harmonic distortion: 0.08% THD at 8 Ohm
• Attenuation factor: 50 at 8 Ohm
• Frequency response: 5 Hz - 50 kHz
• Signal-to-noise ratio:
  • 76dB (MM)

90dB (Line)

• Tone control
  • Bass:
    • 150Hz : ± 7.5dB at 40Hz
    • 400Hz : ± 7.5dB at 100Hz

Treble:

• • • 3Khz : ± 7.5dB at 10Khz
    • 6Khz : ± 7.5dB at 20Khz

Loudness (-30dB) : +2 / +4 / +6 / +8dB at 100Hz

• High Filter: 8Khz, 12dB/octave
• Low Filter: 40Hz, 12dB/octave
• Presence :
  • +6dB at 800Hz
  • +6dB at 3Khz

Special Features

• Power attenuator: 0 dB, -15 dB, -30 dB
• Loudness 4-stage
• Pre- and power amplifier separable

Notes

• Other models of the same series:
• Amplifier
• Kenwood Model 500
• Kenwood Model 600
• Kenwood Model 650

• [[Tuner
• Kenwood Model 600 T
• Kenwood Model 650 T

• Kenwood recommended speakers for:
• Kenwood Model Seven

Pictures

• Picture: Kenwood Model 650

• Picture: The identical amplifier was also available with a silver-coloured front as Kenwood Model 600

Reviews

• Review from Good Old Hifi: [1]

• Report from "Mackers": [2]

Links

• External link to website "Hifi Studio": [3]

• External link on website "The Vintage Knob", including a picture of the setup: [4], retrieved 13 January 2018.