Difference between revisions of "Kenwood KR-7070"
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− | == | + | == Data == |
− | {{ | + | {{navigation}} |
− | ''' | + | '''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: 2 | + | ** 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 |
− | ** Aux | + | ** 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 | ||
− | ** | + | ** Antenna: FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM. |
− | * | + | * Number of outputs: |
− | ** Tape Rec (Cinch / DIN): | + | ** Tape Rec (Cinch / DIN): 200 mV / 40 mV |
** Pre-Out: | ** 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 | ** MW: 15µV | ||
− | + | Distortion factor: | |
− | ** Mono: | + | ** Mono: < 0.4 |
− | + | Stereo: < 0,6 % | |
* Signalrauschabstand: | * Signalrauschabstand: | ||
− | ** UKW: > 70 dB | + | ** UKW: >70 dB |
− | ** MW: | + | ** 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: | + | ** MW: > 70 dB |
− | + | IF attenuation: | |
− | ** | + | ** FM: > 100 dB |
− | + | MW: > 70 dB | |
− | * AM | + | * AM suppression: |
− | ''' | + | '''Technical Data Amplifier Part''' |
− | * | + | * Continuous power (at distortion factor) |
− | ** 8 Ohm: 2 x | + | ** 8 Ohm: 2 x 90 W |
− | ** 4 Ohm: 2 x | + | ** 4 Ohm: 2 x 110 W |
− | ** | + | ** mono output: 5 W |
− | * | + | * Dynamic power |
** 8 Ohm: 220 W (IHF) | ** 8 Ohm: 220 W (IHF) | ||
** 4 Ohm: 300 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 | ** Phono 1/2: 65 dB | ||
− | ** | + | ** Microphone: 67 dB |
** Aux/Tape Play: 75 dB | ** Aux/Tape Play: 75 dB | ||
− | * | + | * Tone control: |
− | ** Bass: ± | + | ** Bass: ± 10 dB at 100 Hz |
− | + | Treble: ± 10 dB at 10 kHz | |
− | * | + | * Loudness: 2-stage |
− | * | + | Mid: + 6 dB / 100 Hz |
− | * Low Filter : -7 dB | + | ** Max: + 10 dB / 100 Hz, + 5 dB / 10 kHz |
− | * High Filter: -10 dB | + | * 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 | + | ** 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 == |
− | * | + | * Other models of the same series: |
− | + | ** [[Kenwood KR-2120]] | |
− | + | ** [[Kenwood KR-3130]] | |
− | + | ** [[Kenwood KR-4140]] | |
− | + | ** [[Kenwood KR-5150]] | |
− | + | ** [[Kenwood KR-6160]] | |
− | + | ** [[Kenwood KR-7070]] | |
− | + | ** [[Kenwood KR-7070 A]] | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | * FM | + | * FM multipath output to oscilloscope such as. |
− | ** Kenwood KC-6060 A | + | ** [[Kenwood KC-6060 A |
− | + | ** [[Kenwood KC-6060 A]] | |
− | == | + | == Pictures == |
* Kenwood KR-7070 | * Kenwood KR-7070 | ||
− | [[ | + | [[File:KR-7070-14.jpg]] |
− | == | + | * Kenwood KR-7070 front description |
− | * | + | [[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 == | ||
− | * | + | * External link: Audio Heritage Japan website: [http://audio-heritage.jp/TRIO-KENWOOD/amp/kr-7070.html] |
− | |||
− | |||
− | [[ | + | [[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]
- 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>