Difference between revisions of "Kenwood KR-4070"
 
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Kennwood KR-4070
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__NOTOC__
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== Data ==
 +
{{navigation}}
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'''General'''
 +
* Manufacturer: [[Kenwood]]
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* Model: KR-4070 (KR-4770)
 +
Type: Receiver
 +
* Years of manufacture: 1978 - 1980
 +
* Made in: Japan
 +
* Color: Silver (KR-4770: Anthracite metallic)
 +
* Remote control: no
 +
* Power consumption: 300 W
 +
* Dimensions: 468 x 149 x 392 mm (WxHxD)
 +
* Weight: 9,4 kg
 +
* Original price approx.: 898 DM (1978)
  
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Technische Daten:
 
  
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UKW-Empfangsteil:
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'''Connections'''
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Mono (75 kHz Hub, 26 dB S/N, an 75 Ohm): 1,2 µV
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* Number of inputs:
 +
** Phono MM (Cinch): 2.5 mV / 50 kOhm.
 +
1x Tape In (Cinch/DIN): 150 mV / 45 kOhm
 +
** Aux (Cinch): 150 mV / 45 kOhm
 +
** Antenna FM (75/300 Ohm), AM
 +
* Number of outputs:
 +
** 1x Tape Out (Cinch/DIN):
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** Headphones (6.3 mm jack, front)
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** 2 pairs of loudspeakers
  
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Stereo (75 kHz Hub, 46 dB S/N, an 75 Ohm): 45 µV
 
  
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Rauschsignalabstand 50dB: 3,0 µV
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'''Technical Data'''
  
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Begrenzereinsatz: 1,0 µV
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''Amplifier''
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* Continuous power
 +
** 8 Ohm: 2x 40 W (20-20,000 Hz)
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** 4 Ohm:
 +
* Dynamic power
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** 8 Ohm:
 +
** 4 Ohm:
 +
* Total harmonic distortion: 0.05% (at rated power)
 +
* Attenuation Factor:
 +
* Frequency Response:
 +
** Power bandwidth: 10 - 40,000 Hz
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* Signal-to-noise ratio: (IHF-A)
 +
** Phono MM: 73 dB
 +
** AUX, Tape: 95 dB
 +
* Stereo Channel Separation:
 +
* Tone control:
 +
** Bass: ±8 dB at 100 Hz
 +
Treble: ±8 dB at 10 kHz
 +
* Loudness: +9 dB (100 Hz)
 +
* High Filter: no
 +
* Low Filter (Subsonic): no
 +
* Mute: FM Muting
  
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Frequenzgang: 20 Hz – 15 kHz
 
  
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Klirrfaktor
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''Tuner''
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Mono, 1 kHz (40 kHz dev, 1 mV input): 0,15 %
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* Reception: FM, MW
 +
* Frequencies:
 +
** FM: 87.5 - 108 MHz
 +
MW: 525 - 1605 kHz
 +
* Frequency response: 20 - 15,000 Hz
 +
* Input sensitivity:
 +
** FM: 1.2 µV (IHF)
 +
MW: 16 µV
 +
* Distortion factor: (1 kHz)
 +
** FM: 0.15% (mono), 0.3% (stereo)
 +
* Signal-to-noise ratio: (IHF-A)
 +
VHF: 72 dB (mono), 67 dB (stereo)
 +
MW: 50 dB
 +
* Channel separation:
 +
** FM: 40 dB (at 1 kHz).
 +
* Selectivity:
 +
** FM: 60 dB
 +
* Equal wave selection:
 +
** FM: 1.0 dB
 +
* Spurious wave selection:
 +
** FM: 75 dB
 +
* Image frequency attenuation:
 +
** FM: 45 dB
 +
** MW: 50 dB
 +
IF attenuation:
 +
** FM: 95 dB
 +
* AM suppression: 53 dB
  
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Stereo, 1 kHz (46 kHz dev, 1 mV input): 0,3 %
 
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Stör/Nutzsignalabstand (bew.):
 
  
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Mono /IHF-A, 1 mV): 72 dB
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== Comments ==
 +
* Other models in the same series:
 +
* [[Kenwood KR-2090]]
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* [[Kenwood KR-3090]]
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* [[Kenwood KR-4070]]
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* [[Kenwood KR-5030]]
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* [[Kenwood KR-6030]]
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* [[Kenwood KR-8010]]
  
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(DIN-B, 46 kHz dev, 1 mV): 70 dB
 
  
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Stereo (IHF-A, 1mV): 67 dB
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== Pictures ==
 +
* Image: Kenwood KR-4070
 +
[[File:Kenwood KR-4070-1.jpg|1600px]]
  
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(DIN-B, 40 kHz dev, 1 mV): 64 dB
 
  
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Spiegelfrequenzunterdrückung: 45 dB
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* Picture: Kenwood KR-4770
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[[File:Kenwood KR-4770-1.jpg|1600px]]
  
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Selektivität: 60 dB (300 kHz)
 
  
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ZF-Unterdrückung: 95 dB
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== Reviews ==
 +
* Review by "Good Old Hifi": [[http://www.good-old-hifi.de/kenwood_kr-4070_und_weitere_geraete/]]
  
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AM-Unterdrückung: 53 dB
 
  
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Nebenwellenunterdrückung: 75 dB
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== Links ==
  
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Stereokanaltrennung:
 
  
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(1 kHz, 46 kHz dev, 1 mV): 40 dB
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[[Category:Receiver]]
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Gleichwellenunterdrückung: 1,0 dB
 
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Mittelwellen-Empfangsteil:
 
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Eingangsempfindlichkeit: 16 µV
 
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Stör/Nutzsignalabstand: 50 dB
 
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Spiegelfrequenzunterdrückung: 50 dB
 
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Stereo-Verstärkerteil:
 
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Max. Ausgangsleistung, beide Kanäle in Betrieb bei DIN: 2 x 64 W
 
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Nennausgangsleistung/Sinusleistung (8 Ohm, 20 – 20 kHz): 2 x 40 W
 
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Klirrfaktor bei Nennleistung: 0,05%
 
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Intermodulationsverzerrungen bei Nennleistung: 0,1 %
 
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Leistungsbandbreite: 10 Hz - 40 kHz
 
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Eingangsempf. und Impedanz (IHF-A)
 
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Phono 1: 2,5 mV/59 kOhm
 
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Aux: 150 mV/45 kOhm
 
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Tape: 150 mV/45 kOhm
 
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Geräuschspannungsabstand (IHF-A)
 
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Phono 1: 73 dB
 
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Aux: 95 dB
 
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Tape: 95dB
 
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Phone (50mW): 60 dB
 
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Aux (50mW): 60 dB
 
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Regelbereiche:
 
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Bass (100 Hz): +/- 8 dB
 
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Treble (10 kHz): +/- 8 dB
 
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Loudness (-30 dB) 100 Hz: + 9 dB
 
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Allgemeines:
 
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Netzanschluß: 110/220/240 V, 50-60 Hz
 
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Max. Leistungsaufnahme: 300 W
 
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Abmessungen (BxHxT): 468 x 149 x 360 mm
 
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Gewicht: 9,4 Kg
 

Latest revision as of 07:07, 18 May 2019

Data[edit]

General

  • Manufacturer: Kenwood
  • Model: KR-4070 (KR-4770)

Type: Receiver

  • Years of manufacture: 1978 - 1980
  • Made in: Japan
  • Color: Silver (KR-4770: Anthracite metallic)
  • Remote control: no
  • Power consumption: 300 W
  • Dimensions: 468 x 149 x 392 mm (WxHxD)
  • Weight: 9,4 kg
  • Original price approx.: 898 DM (1978)


Connections

  • Number of inputs:
    • Phono MM (Cinch): 2.5 mV / 50 kOhm.

1x Tape In (Cinch/DIN): 150 mV / 45 kOhm

    • Aux (Cinch): 150 mV / 45 kOhm
    • Antenna FM (75/300 Ohm), AM
  • Number of outputs:
    • 1x Tape Out (Cinch/DIN):
    • Headphones (6.3 mm jack, front)
    • 2 pairs of loudspeakers


Technical Data

Amplifier

  • Continuous power
    • 8 Ohm: 2x 40 W (20-20,000 Hz)
    • 4 Ohm:
  • Dynamic power
    • 8 Ohm:
    • 4 Ohm:
  • Total harmonic distortion: 0.05% (at rated power)
  • Attenuation Factor:
  • Frequency Response:
    • Power bandwidth: 10 - 40,000 Hz
  • Signal-to-noise ratio: (IHF-A)
    • Phono MM: 73 dB
    • AUX, Tape: 95 dB
  • Stereo Channel Separation:
  • Tone control:
    • Bass: ±8 dB at 100 Hz

Treble: ±8 dB at 10 kHz

  • Loudness: +9 dB (100 Hz)
  • High Filter: no
  • Low Filter (Subsonic): no
  • Mute: FM Muting


Tuner

  • Reception: FM, MW
  • Frequencies:
    • FM: 87.5 - 108 MHz

MW: 525 - 1605 kHz

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

MW: 16 µV

  • Distortion factor: (1 kHz)
    • FM: 0.15% (mono), 0.3% (stereo)
  • Signal-to-noise ratio: (IHF-A)

VHF: 72 dB (mono), 67 dB (stereo) MW: 50 dB

  • Channel separation:
    • FM: 40 dB (at 1 kHz).
  • Selectivity:
    • FM: 60 dB
  • Equal wave selection:
    • FM: 1.0 dB
  • Spurious wave selection:
    • FM: 75 dB
  • Image frequency attenuation:
    • FM: 45 dB
    • MW: 50 dB

IF attenuation:

    • FM: 95 dB
  • AM suppression: 53 dB


Comments[edit]


Pictures[edit]

  • Image: Kenwood KR-4070

Kenwood KR-4070-1.jpg


  • Picture: Kenwood KR-4770

Kenwood KR-4770-1.jpg


Reviews[edit]

  • Review by "Good Old Hifi": [[1]]


Links[edit]

Retrieved from "https://hifi-wiki.com/index.php?title=Kenwood_KR-4070&oldid=175455"