Difference between revisions of "Kenwood KR-7070"

 
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== Daten ==
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== Data ==
{{Navigation}}
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{{navigation}}
'''Allgemein'''
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'''General'''
* Hersteller: [[Kenwood]]
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* Manufacturer: [[Kenwood]]
* Modell: KR-7070
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* Model: KR-7070
* Baujahre: 1970 - 1971
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* Year of manufacture: 1970 - 1971
* Hergestellt in: Japan
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* Made in: Japan
* Farbe: Silber, Schwarz, Nussbaum Holzgehäuse
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* Color: Silver, black, walnut wood cabinet
* Fernbedienung: Kabelfernbedienung RC-70 inbegriffen
+
* Remote control: RC-70 wired remote control included
* Leistungsaufnahme: 320 W bei Vollaussteuerung / 40 W ohne Signal
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* Power consumption: 320 W at full output / 40 W without signal
* Abmessungen: 432 x 165 x 370 mm
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* Dimensions: 432 x 165 x 370 mm
* Gewicht: 18 kg
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* Weight: 18 kg
* Neupreis ca.: 150'000 Yen (Japan, 1971), 2100 DM
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* Original price approx.: 150'000 Yen (Japan, 1971), 2'500 DM
  
  
'''Anschlüsse'''
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'''Connections'''
* Anzahl der Eingänge:
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* Number of inputs:
** Phono 1/2: 2,5 mV / 50 kOhm
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** Phono 1: 2.5 mV / 50 kOhm, switchable 0.05 mV / 200 Ohm, 0.5 mV / 200 Ohm.
** MIC: 4 mV / 100 kOhm
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** Phono 2: 2.5 mV / 50 kOhm
** Aux 1, 2: 180 mV / 100 kOhm
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** Microphone: 4 mV / 100 kOhm
 +
** Aux: 180 mV / 100 kOhm
 
** Tape Play:
 
** Tape Play:
 
*** Cinch: 100 mV / 100 kOhm
 
*** Cinch: 100 mV / 100 kOhm
 
*** DIN:  
 
*** DIN:  
 
** Main In: 100 mV / 100 kOhm
 
** Main In: 100 mV / 100 kOhm
** Antenne: FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM
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** Antenna: FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM.
* Anzahl der Ausgänge:
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* Number of outputs:
** Tape Rec (Cinch / DIN): 150 mV / 30 mV
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** Tape Rec (Cinch / DIN): 200 mV / 40 mV
 
** Pre-Out:  
 
** Pre-Out:  
** Kopfhörer
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** Headphones
** 3 Lautsprecherpaare
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** 2 pairs of speakers
  
  
'''Technische Daten Tuner-Teil'''
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'''Technical Data Tuner Part'''
* Empfang: UKW, MW
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* Reception: FM, MW
* Frequenzen:
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* Frequencies:
** UKW: 88 - 108 MHz
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** FM: 88 - 108 MHz
** MW: 520 - 1610 kHz
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MW: 520 - 1610 kHz
* Frequenzgang: 20 - 15.000 Hz (± 1,2 dB, UKW)
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* Frequency response: 20 - 15,000 Hz (± 1.2 dB, FM)
* Eingangsempfindlichkeit:
+
* Input sensitivity:
** UKW: 1,6µV
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** FM: 1.6µV
 
** MW: 15µV
 
** MW: 15µV
* Klirrfaktor:
+
Distortion factor:
** Mono: < 0,4 %
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** Mono: &lt; 0.4
** Stereo: < 0,6 %  
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Stereo: < 0,6 %  
 
* Signalrauschabstand:  
 
* Signalrauschabstand:  
** UKW: > 70 dB
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** UKW: >70 dB
** MW: > 50 dB
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** MW: &gt; 50 dB
* Gleichwellenselektion: 1,5 dB
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* Common mode selection: 1.5 dB
* Kanaltrennung (1 kHz / 10 kHz): > 35 dB / > 25 dB
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* Channel separation (1 kHz / 10 kHz): &gt; 35 dB / &gt; 25 dB
* Trennschärfe:
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* selectivity:
** UKW: > 75 dB
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** FM: &gt; 75 dB
** MW: > 25 dB
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MW: &gt; 25 dB
* Gleichwellenselektion: > 100 dB
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* Co-wave selection: &gt; 100 dB
* Nebenwellenselektion: > 55 dB
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* Spurious wave selection: &gt; 55 dB
* Spiegelfrequenzdämpfung:
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* Mirror frequency attenuation:
** UKW: > 100 dB
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** FM: &gt; 100 dB
** MW: > 70 dB
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** MW: &gt; 70 dB
* ZF-Dämpfung:
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IF attenuation:
** UKW: > 100 dB
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** FM: &gt; 100 dB
** MW: > 70 dB
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MW: &gt; 70 dB
* AM-Unterdrückung:  
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* AM suppression:  
  
  
'''Technische Daten Verstärker-Teil'''
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'''Technical Data Amplifier Part'''
* Dauerleistung (bei Klirrfaktor)
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* Continuous power (at distortion factor)
** 8 Ohm: 2 x 80 W
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** 8 Ohm: 2 x 90 W
** 4 Ohm: 2 x 90 W
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** 4 Ohm: 2 x 110 W
** Mono-Ausgang: 5 W
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** mono output: 5 W
* Dynamikleistung
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* Dynamic power
 
** 8 Ohm: 220 W (IHF)
 
** 8 Ohm: 220 W (IHF)
 
** 4 Ohm: 300 W (IHF)
 
** 4 Ohm: 300 W (IHF)
* Gesamtklirrfaktor: 0,1 % bei Vollaussteuerung
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* Total harmonic distortion: 0.1 % at full scale
* Dämpfungsfaktor: 50 bei 8 Ohm, 100 bei 4 Ohm
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* Attenuation factor: 50 at 8 Ohm, 100 at 4 Ohm
* Frequenzgang: 20 - 40000 Hz ± 1,5dB
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* Frequency response: 20 - 40000 Hz ± 1.5dB
* Leistungsbandbreite(IHF): 12 - 30000 Hz
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* Power bandwidth(IHF): 10 - 30000 Hz
* Signalrauschabstand:
+
* Signal to noise ratio:
 
** Phono 1/2: 65 dB
 
** Phono 1/2: 65 dB
** Mikrofon: 65 dB
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** Microphone: 67 dB
 
** Aux/Tape Play: 75 dB
 
** Aux/Tape Play: 75 dB
* Klangregelung:
+
* Tone control:
** Bass: ± 12 dB bei 100 Hz
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** Bass: ± 10 dB at 100 Hz
** Mitten: ± 8 dB bei 1 kHz
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Treble: ± 10 dB at 10 kHz
** Höhen: ± 12 dB bei 10 kHz
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* Loudness: 2-stage
* Loudness: + 10 dB / 100 Hz, + 5 dB / 10 kHz
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Mid: + 6 dB / 100 Hz
* Low Filter : -7 dB bei 100 Hz
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** Max: + 10 dB / 100 Hz, + 5 dB / 10 kHz
* High Filter: -10 dB bei 10 kHz
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* Low Filter: -7 dB at 100 Hz
 +
* High Filter: -10 dB at 10 kHz
 +
* Presence: 2-stage:
 +
** + 6 dB at 400 Hz
 +
+ 6 dB at 1 kHz
 +
* Audio Muting: - 20 dB
  
  
'''Besondere Ausstattungen'''
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'''Special Features'''
* Kabelfernbedienung RC-70 für Auto-Tuning
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* Cable remote control RC-70 for car tuning
* Mitteltonregler
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* Presence switch
* Auftrennbare Vor- und Endstufe
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* Separable pre- and power amplifier
* Mikrofoneingänge L + R
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* Microphone / Phono switch
** Mikrofone einmischbar
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* 2 microphone inputs
** Kenwood Original Mikrofon MC-501 optional erhältlich
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** Kenwood original microphone MC-501 optionally available
* UKW Mittenanzeige Instrument
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* FM center display instrument
* UKW Muting
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* FM Muting
* Hinweis: in einigen Ländern wurde das Gerät original mit Metallabdeckung geliefert. Das Nussbaum Holzgehäuse war unter der Bezeichnung SR-77 zum Beispiel in den USA optional für 24.95 US-$ erhältlich.
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* Note: in some countries the unit was originally supplied with metal cover. The walnut wood case was available as an option under the designation SR-77 for example in the USA for 24.95 US-$.
  
  
== Bemerkungen ==
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== Remarks ==
* Weitere Modelle der gleichen Serie:
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* Other models of the same series:
** Kenwood KR-2120
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** [[Kenwood KR-2120]]
*** [[Kenwood KR-2120|KR-2120]]
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** [[Kenwood KR-3130]]
** Kenwood KR-3130
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** [[Kenwood KR-4140]]
*** [[Kenwood KR-3130|KR-3130]]
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** [[Kenwood KR-5150]]
** Kenwood KR-4140
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** [[Kenwood KR-6160]]
*** [[Kenwood KR-4140|KR-4140]]
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** [[Kenwood KR-7070]]
** Kenwood KR-5150
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** [[Kenwood KR-7070 A]]
*** [[Kenwood KR-5150|KR-5150]]
 
** Kenwood KR-6160
 
*** [[Kenwood KR-6160|KR-6160]]
 
** Kenwood KR-7070
 
*** [[Kenwood KR-7070|KR-7070]]
 
** Kenwood KR-7070 A
 
*** [[Kenwood KR-7070 A|KR-7070 A]]
 
  
  
* FM-Multipath Ausgang zu Oszilloskop wie zB.
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* FM multipath output to oscilloscope such as.
** Kenwood KC-6060 A
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** [[Kenwood KC-6060 A
*** [[Kenwood KC-6060 A|KC-6060 A]]
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** [[Kenwood KC-6060 A]]
  
  
== Bilder ==
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== Pictures ==
 
* Kenwood KR-7070
 
* Kenwood KR-7070
[[Datei:KR-7070-12.jpg]]
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[[File:KR-7070-14.jpg]]
  
  
== Berichte ==
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* Kenwood KR-7070 front description
* Externer Bericht auf Webseite "Mackern": [http://www.mackern.de/index.php/2013/10/22/kenwood-kr-7070/]
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[[File:KR-7070-Prospekt-5.jpg]]
 +
 
 +
 
 +
* Kenwood KR-7070 Rear Description
 +
[[File:KR-7070-Prospekt-6.jpg]]
 +
 
 +
 
 +
== Reports ==
 +
* External review on website "Mackern": [[http://www.mackern.de/index.php/2013/10/22/kenwood-kr-7070/]]
  
  
 
== Links ==
 
== Links ==
* Externer Link: Webseite "The Vintage Knob": [http://www.thevintageknob.org/kenwood-KR-7070.html]
+
* External link: Audio Heritage Japan website: [http://audio-heritage.jp/TRIO-KENWOOD/amp/kr-7070.html]
 
 
* Externer Link: Webseite "Audio Heritage Japan": [http://audio-heritage.jp/TRIO-KENWOOD/amp/kr-7070.html]
 
  
  
[[Kategorie:Receiver]]
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[[Category:Receiver]]</0,6>

Latest revision as of 05:03, 28 March 2019

Data[edit]

General

  • Manufacturer: Kenwood
  • Model: KR-7070
  • Year of manufacture: 1970 - 1971
  • Made in: Japan
  • Color: Silver, black, walnut wood cabinet
  • Remote control: RC-70 wired remote control included
  • Power consumption: 320 W at full output / 40 W without signal
  • Dimensions: 432 x 165 x 370 mm
  • Weight: 18 kg
  • Original price approx.: 150'000 Yen (Japan, 1971), 2'500 DM


Connections

  • Number of inputs:
    • Phono 1: 2.5 mV / 50 kOhm, switchable 0.05 mV / 200 Ohm, 0.5 mV / 200 Ohm.
    • Phono 2: 2.5 mV / 50 kOhm
    • Microphone: 4 mV / 100 kOhm
    • Aux: 180 mV / 100 kOhm
    • Tape Play:
      • Cinch: 100 mV / 100 kOhm
      • DIN:
    • Main In: 100 mV / 100 kOhm
    • Antenna: FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM.
  • Number of outputs:
    • Tape Rec (Cinch / DIN): 200 mV / 40 mV
    • Pre-Out:
    • Headphones
    • 2 pairs of speakers


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: 1.6µV
    • MW: 15µV

Distortion factor:

    • Mono: < 0.4

Stereo: < 0,6 %

  • Signalrauschabstand:
    • UKW: >70 dB
    • MW: > 50 dB
  • Common mode selection: 1.5 dB
  • Channel separation (1 kHz / 10 kHz): > 35 dB / > 25 dB
  • selectivity:
    • FM: > 75 dB

MW: > 25 dB

  • Co-wave selection: > 100 dB
  • Spurious wave selection: > 55 dB
  • Mirror frequency attenuation:
    • FM: > 100 dB
    • MW: > 70 dB

IF attenuation:

    • FM: > 100 dB

MW: > 70 dB

  • AM suppression:


Technical Data Amplifier Part

  • Continuous power (at distortion factor)
    • 8 Ohm: 2 x 90 W
    • 4 Ohm: 2 x 110 W
    • mono output: 5 W
  • Dynamic power
    • 8 Ohm: 220 W (IHF)
    • 4 Ohm: 300 W (IHF)
  • Total harmonic distortion: 0.1 % at full scale
  • Attenuation factor: 50 at 8 Ohm, 100 at 4 Ohm
  • Frequency response: 20 - 40000 Hz ± 1.5dB
  • Power bandwidth(IHF): 10 - 30000 Hz
  • Signal to noise ratio:
    • Phono 1/2: 65 dB
    • Microphone: 67 dB
    • Aux/Tape Play: 75 dB
  • Tone control:
    • Bass: ± 10 dB at 100 Hz

Treble: ± 10 dB at 10 kHz

  • Loudness: 2-stage

Mid: + 6 dB / 100 Hz

    • Max: + 10 dB / 100 Hz, + 5 dB / 10 kHz
  • Low Filter: -7 dB at 100 Hz
  • High Filter: -10 dB at 10 kHz
  • Presence: 2-stage:
    • + 6 dB at 400 Hz

+ 6 dB at 1 kHz

  • Audio Muting: - 20 dB


Special Features

  • Cable remote control RC-70 for car tuning
  • Presence switch
  • Separable pre- and power amplifier
  • Microphone / Phono switch
  • 2 microphone inputs
    • Kenwood original microphone MC-501 optionally available
  • FM center display instrument
  • FM Muting
  • Note: in some countries the unit was originally supplied with metal cover. The walnut wood case was available as an option under the designation SR-77 for example in the USA for 24.95 US-$.


Remarks[edit]



Pictures[edit]

  • Kenwood KR-7070

KR-7070-14.jpg


  • Kenwood KR-7070 front description

KR-7070-Prospekt-5.jpg


  • Kenwood KR-7070 Rear Description

KR-7070-Prospekt-6.jpg


Reports[edit]

  • External review on website "Mackern": [[1]]


Links[edit]

  • External link: Audio Heritage Japan website: [2]</0,6>