Difference between revisions of "Kenwood KR-7070"

Latest revision as of 06:03, 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]

Other models of the same series:

FM multipath output to oscilloscope such as.
- [[Kenwood KC-6060 A
- Kenwood KC-6060 A

Pictures[edit]

Kenwood KR-7070

Kenwood KR-7070 front description

Kenwood KR-7070 Rear Description

Reports[edit]

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

Links[edit]

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

@@ Line 1: / Line 1: @@
 __NOTOC__
-== Daten ==
+== Data ==
-{{Navigation}}
+{{navigation}}
-'''Allgemein'''
+'''General'''
-* Hersteller: [[Kenwood]]
+* Manufacturer: [[Kenwood]]
-* Modell: KR-7070
+* Model: KR-7070
-* Baujahre: 1970 - 1971
+* Year of manufacture: 1970 - 1971
-* Hergestellt in: Japan
+* Made in: Japan
-* Farbe: Silber, Schwarz, Nussbaum Holzgehäuse
+* 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
+* Power consumption: 320 W at full output / 40 W without signal
-* Abmessungen: 432 x 165 x 370 mm
+* Dimensions: 432 x 165 x 370 mm
-* Gewicht: 18 kg
+* Weight: 18 kg
-* Neupreis ca.: 150'000 Yen (Japan, 1971), 2100 DM
+* Original price approx.: 150'000 Yen (Japan, 1971), 2'500 DM
-'''Anschlüsse'''
+'''Connections'''
-* Anzahl der Eingänge:
+* Number of inputs:
-** Phono 1/2: 2,5 mV / 50 kOhm
+** Phono 1: 2.5 mV / 50 kOhm, switchable 0.05 mV / 200 Ohm, 0.5 mV / 200 Ohm.
-** MIC: 4 mV / 100 kOhm
+** Phono 2: 2.5 mV / 50 kOhm
-** Aux 1, 2: 180 mV / 100 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
-** Antenne: FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM
+** Antenna: FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM.
-* Anzahl der Ausgänge:
+* Number of outputs:
-** Tape Rec (Cinch / DIN): 150 mV / 30 mV
+** Tape Rec (Cinch / DIN): 200 mV / 40 mV
 ** Pre-Out:
-** Kopfhörer
+** Headphones
-** 3 Lautsprecherpaare
+** 2 pairs of speakers
-'''Technische Daten Tuner-Teil'''
+'''Technical Data Tuner Part'''
-* Empfang: UKW, MW
+* Reception: FM, MW
-* Frequenzen:
+* Frequencies:
-** UKW: 88 - 108 MHz
+** FM: 88 - 108 MHz
-** MW: 520 - 1610 kHz
+MW: 520 - 1610 kHz
-* Frequenzgang: 20 - 15.000 Hz (± 1,2 dB, UKW)
+* Frequency response: 20 - 15,000 Hz (± 1.2 dB, FM)
-* Eingangsempfindlichkeit:
+* Input sensitivity:
-** UKW: 1,6µV
+** FM: 1.6µV
 ** MW: 15µV
-* Klirrfaktor:
+Distortion factor:
-** Mono: 0,5 %
+** Mono: &lt; 0.4
-** Stereo: 0,8 %
+Stereo: < 0,6 %
-* Signalrauschabstand: 68 dB
+* Signalrauschabstand:
-* Gleichwellenselektion: 1,5 dB
+** UKW: >70 dB
-* Kanaltrennung (1 kHz / 10 kHz): 35 dB / 25 dB
+** MW: &gt; 50 dB
-* Trennschärfe:
+* Common mode selection: 1.5 dB
-** UKW: 55 dB
+* Channel separation (1 kHz / 10 kHz): &gt; 35 dB / &gt; 25 dB
-** MW: 25 dB
+* selectivity:
-* Gleichwellenselektion: 100 dB
+** FM: &gt; 75 dB
-* Nebenwellenselektion: 45 dB
+MW: &gt; 25 dB
-* Spiegelfrequenzdämpfung: 100 dB
+* Co-wave selection: &gt; 100 dB
-* ZF-Dämpfung:
+* Spurious wave selection: &gt; 55 dB
-* AM-Unterdrückung:
+* Mirror frequency attenuation:
+** FM: &gt; 100 dB
+** MW: &gt; 70 dB
+IF attenuation:
+** FM: &gt; 100 dB
+MW: &gt; 70 dB
+* AM suppression:
-'''Technische Daten Verstärker-Teil'''
+'''Technical Data Amplifier Part'''
-* Dauerleistung (bei Klirrfaktor)
+* Continuous power (at distortion factor)
-** 8 Ohm: 2 x 70 W
+** 8 Ohm: 2 x 90 W
-** 4 Ohm: 2 x 90 W
+** 4 Ohm: 2 x 110 W
-* Dynamikleistung
+** mono output: 5 W
-** 8 Ohm: 180 W (IHF)
+* Dynamic power
-** 4 Ohm: 220 W (IHF)
+** 8 Ohm: 220 W (IHF)
-* Gesamtklirrfaktor: 0,1 % bei Vollaussteuerung
+** 4 Ohm: 300 W (IHF)
-* Dämpfungsfaktor: 50 bei 8 Ohm
+* Total harmonic distortion: 0.1 % at full scale
-* Frequenzgang: 20 - 40000 Hz ± 1,5dB
+* Attenuation factor: 50 at 8 Ohm, 100 at 4 Ohm
-* Leistungsbandbreite(IHF): 12 - 30000 Hz
+* Frequency response: 20 - 40000 Hz ± 1.5dB
-* Signalrauschabstand:
+* Power bandwidth(IHF): 10 - 30000 Hz
+* Signal to noise ratio:
 ** Phono 1/2: 65 dB
-** Mikrofon: 65 dB
+** Microphone: 67 dB
 ** Aux/Tape Play: 75 dB
-* Klangregelung:
+* Tone control:
-** Bass: ± 12 dB bei 100 Hz
+** Bass: ± 10 dB at 100 Hz
-** Mitten: ± 8 dB bei 1 kHz
+Treble: ± 10 dB at 10 kHz
-** Höhen: ± 12 dB bei 10 kHz
+* Loudness: 2-stage
-* Loudness: + 10 dB / 100 Hz, + 5 dB / 10 kHz
+Mid: + 6 dB / 100 Hz
-* Low Filter : -7 dB bei 100 Hz
+** Max: + 10 dB / 100 Hz, + 5 dB / 10 kHz
-* High Filter: -10 dB bei 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
-'''Besondere Ausstattungen'''
+'''Special Features'''
-* Center Kanal Ausgang
+* Cable remote control RC-70 for car tuning
-* Mitteltonregler
+* Presence switch
-* Auftrennbare Vor- und Endstufe
+* Separable pre- and power amplifier
-* Mikrofoneingänge L + R
+* Microphone / Phono switch
-** Mikrofone einmischbar
+* 2 microphone inputs
-** Kenwood Original Mikrofon MC-501 optional erhältlich
+** Kenwood original microphone MC-501 optionally available
-* UKW Mittenanzeige Instrument
+* FM center display instrument
-* UKW Muting
+* FM Muting
-* Hinweis: in einigen Ländern wurde das Gerät original mit Metallabdeckung geliefert. Das Nussbaum Holzgehäuse war unter der Bezeichnung SR-66 zum Beispiel in den USA optional für 19.95 US-$ erhältlich.
+* 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 ==
+== Remarks ==
-* Weitere Modelle der gleichen Serie:
+* Other models of the same series:
-** Kenwood KR-2120
+** [[Kenwood KR-2120]]
-*** [[Kenwood KR-2120|KR-2120]]
+** [[Kenwood KR-3130]]
-** Kenwood KR-3130
+** [[Kenwood KR-4140]]
-*** [[Kenwood KR-3130|KR-3130]]
+** [[Kenwood KR-5150]]
-** Kenwood KR-4140
+** [[Kenwood KR-6160]]
-*** [[Kenwood KR-4140|KR-4140]]
+** [[Kenwood KR-7070]]
-** Kenwood KR-5150
+** [[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]]
-== Bilder ==
+* FM multipath output to oscilloscope such as.
+** [[Kenwood KC-6060 A
+** [[Kenwood KC-6060 A]]
+== Pictures ==
 * Kenwood KR-7070
-[[Datei:KR-7070-12.jpg]]
+[[File:KR-7070-14.jpg]]
+* Kenwood KR-7070 front description
+[[File:KR-7070-Prospekt-5.jpg]]
-== Berichte ==
-* Externer Bericht auf Webseite "Mackern": [http://www.mackern.de/index.php/2013/10/22/kenwood-kr-7070/]
+* 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 ==
-* 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]]
+[[Category:Receiver]]</0,6>

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Difference between revisions of "Kenwood KR-7070"

Latest revision as of 06:03, 28 March 2019

Data[edit]

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