Difference between revisions of "Kenwood KR-9940"
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− | == | + | == Data == |
− | {{ | + | {{navigation}} |
− | ''' | + | '''General''' |
− | * | + | * Manufacturer: [[Kenwood]] |
− | * | + | * Model: KR-9940 (European model [[Kenwood KR-9340]]) |
− | * | + | * Years of manufacture: 1973 - 1975 |
− | * | + | * Made in: Japan |
− | * | + | * Color: Silver |
− | * | + | * Remote control: no |
− | * | + | * Power consumption: |
− | * | + | * Dimensions (WxHxD): 534 x 162 x 360 mm. |
− | * | + | * Weight: 21.1 kg |
− | * | + | * New price approx.: 950 US-$ ( Conversion rate 1974 after yearly high of 2,87 DM : 1$ = 2726,50 DM ) |
− | ''' | + | '''Connections''' |
− | * | + | * Number of inputs: |
− | ** Phono 1: 1 | + | ** Phono 1: 1.5 mV / 150 kOhm (max. 100 mV). |
− | ** Phono 2 | + | ** Phono 2 with CD-4: 1.5 mV / 150 kOhm |
− | ** | + | ** Microphone: 2 mV / 15 kOhm |
** AUX: 150 mV / 150 kOhm | ** AUX: 150 mV / 150 kOhm | ||
− | ** Tape Play 1 & 2: | + | ** Tape Play 1 & 2: |
*** Cinch: 150 mV / 150 kOhm | *** Cinch: 150 mV / 150 kOhm | ||
*** DIN: 150 mV / 150 kOhm | *** DIN: 150 mV / 150 kOhm | ||
− | ** | + | ** Antenna FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM |
− | * | + | * Number of outputs: |
− | ** Tape Rec 1 & 2: | + | ** Tape Rec 1 & 2: |
*** Cinch: 150 mV / 100 Ohm | *** Cinch: 150 mV / 100 Ohm | ||
− | + | DIN: 40 mV / 50 Ohm | |
− | ** | + | ** Headphones Front / Rear: 2 x 6.3 mm jack plug |
− | ** | + | ** 2 speaker pairs each front and rear |
− | ''' | + | '''Technical Data Tuner Part''' |
− | * | + | * Reception: FM, MW |
− | * | + | * Frequencies: |
− | ** | + | ** FM: 87.5 - 108 MHz |
− | + | MW: 525 - 1605 kHz | |
− | * | + | * Frequency response: 20 - 15,000 Hz (± 1.2 dB, FM) |
− | * | + | * Input sensitivity: |
− | ** | + | ** FM: 1.9 µV (IHF) |
− | + | MW: 19 µV | |
− | + | Distortion factor: | |
− | ** | + | ** FM: 0.5% (mono), 0.8% (stereo). |
− | * | + | * Signal-to-noise ratio: |
− | ** | + | ** FM: 63 dB (stereo) |
+ | MW: 45 dB | ||
+ | * Channel separation: | ||
+ | ** FM: 40 dB (at 1 kHz) | ||
+ | * Selectivity: (IHF) | ||
+ | ** FM: 50 dB | ||
** MW: 45 dB | ** MW: 45 dB | ||
− | * | + | * Equal wave selection: |
− | ** | + | ** FM: 3.0 dB |
− | * | + | * Spurious wave selection: |
− | ** | + | ** FM: 45 dB |
+ | * Image frequency attenuation: | ||
+ | ** FM: 60 dB | ||
** MW: 45 dB | ** MW: 45 dB | ||
− | + | IF attenuation: | |
− | + | ** FM: 90 dB | |
− | + | * AM suppression: 60 dB | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | ** | ||
− | * AM | ||
− | ''' | + | '''Technical Data Amplifier Part''' |
− | * | + | * Continuous power Quadro operation: |
** 8 Ohm: 4 x 50 W (1 kHz) | ** 8 Ohm: 4 x 50 W (1 kHz) | ||
− | + | 4 Ohm: | |
− | * | + | * Dynamic power |
** 8 Ohm: | ** 8 Ohm: | ||
** 4 Ohm: 340 W | ** 4 Ohm: 340 W | ||
− | * | + | * Continuous power stereo operation: |
** 8 Ohm: | ** 8 Ohm: | ||
** 4 Ohm: | ** 4 Ohm: | ||
− | * | + | * Dynamic power |
** 8 Ohm: | ** 8 Ohm: | ||
** 4 Ohm: | ** 4 Ohm: | ||
− | * | + | * Total harmonic distortion: 0.8% (at rated power) |
− | * | + | * Attenuation factor: 30 (8 Ohm) |
− | * | + | * Frequency response: |
− | ** | + | ** Preamplifier: 20 - 40,000 Hz ± 1 dB) |
− | ** | + | ** Power bandwidth: 10 - 45,000 Hz |
− | * | + | * Signal-to-noise ratio: |
** Phono 1,2: 60 dB | ** Phono 1,2: 60 dB | ||
− | ** | + | ** Microphone: 60 dB |
** AUX, Tape: 75 dB | ** AUX, Tape: 75 dB | ||
− | * | + | * Tone control: |
− | ** Bass: ± 10 dB | + | ** Bass: ± 10 dB at 100 Hz |
− | + | Treble: ± 10 dB at 10 kHz | |
* Loudness: + 10 / + 5 dB (100 Hz / 10 kHz) | * Loudness: + 10 / + 5 dB (100 Hz / 10 kHz) | ||
− | * Low Filter (Subsonic): - 8 dB | + | * Low Filter (Subsonic): - 8 dB at 100 Hz |
− | * High Filter: - 6 dB | + | * High Filter: - 6 dB at 10 kHz |
* Mute: FM Muting | * Mute: FM Muting | ||
− | ''' | + | '''Special Features''' |
− | * 4 VU | + | * 4 VU meters |
− | * | + | * With this device additional VHF center display instrument |
− | * | + | * Switch for VU meter: + 20 dB |
− | * | + | * Switch for 4-channel RM, SQ, Discrete / Stereo / Mono |
− | * | + | * Input for CD-4 demodulator insert for KCD-2 |
− | * Bass | + | * Bass and treble control separately for front / rear |
− | |||
− | == | + | == Remarks == |
− | * | + | * Other models in the same series: |
** [[Kenwood KR-5340]] | ** [[Kenwood KR-5340]] | ||
** [[Kenwood KR-6140]] | ** [[Kenwood KR-6140]] | ||
Line 118: | Line 117: | ||
− | * Kenwood CD-4 | + | ** [[Kenwood CD-4 demodulator plug-in unit KCD-2 |
** [[Kenwood KCD-2]] | ** [[Kenwood KCD-2]] | ||
− | * | + | * Introduction to Kenwood 4-channel playback technology. |
− | ** [[ | + | ** [[Introduction Kenwood 4-channel playback technology|Introduction Kenwood 4-channel playback technology]] |
− | == | + | == Pictures == |
− | * | + | * Extract from brochure: Kenwood KR-9940 Front |
− | [[ | + | [[File:Kenwood KR-9940-Prospekt-1.jpg]] |
− | == | + | == Reports == |
+ | * Report at "Hifi-Museum" [http://www.hifimuseum.de/quadro-receiver-1974.html?&no_cache=1&sword_list[]=quadro] | ||
== Links == | == Links == | ||
− | * | + | * External link: KR-7340 "The Vintage Knob" website: [http://www.thevintageknob.org/kenwood-KR-9940.html] |
+ | |||
− | [[ | + | [[Category:Receiver]] |
Latest revision as of 14:19, 14 March 2021
Data[edit]
General
- Manufacturer: Kenwood
- Model: KR-9940 (European model Kenwood KR-9340)
- Years of manufacture: 1973 - 1975
- Made in: Japan
- Color: Silver
- Remote control: no
- Power consumption:
- Dimensions (WxHxD): 534 x 162 x 360 mm.
- Weight: 21.1 kg
- New price approx.: 950 US-$ ( Conversion rate 1974 after yearly high of 2,87 DM : 1$ = 2726,50 DM )
Connections
- Number of inputs:
- Phono 1: 1.5 mV / 150 kOhm (max. 100 mV).
- Phono 2 with CD-4: 1.5 mV / 150 kOhm
- Microphone: 2 mV / 15 kOhm
- AUX: 150 mV / 150 kOhm
- Tape Play 1 & 2:
- Cinch: 150 mV / 150 kOhm
- DIN: 150 mV / 150 kOhm
- Antenna FM (75 Ohm Unbalanced / 300 Ohm Balanced), AM
- Number of outputs:
- Tape Rec 1 & 2:
- Cinch: 150 mV / 100 Ohm
- Tape Rec 1 & 2:
DIN: 40 mV / 50 Ohm
- Headphones Front / Rear: 2 x 6.3 mm jack plug
- 2 speaker pairs each front and rear
Technical Data Tuner Part
- Reception: FM, MW
- Frequencies:
- FM: 87.5 - 108 MHz
MW: 525 - 1605 kHz
- Frequency response: 20 - 15,000 Hz (± 1.2 dB, FM)
- Input sensitivity:
- FM: 1.9 µV (IHF)
MW: 19 µV Distortion factor:
- FM: 0.5% (mono), 0.8% (stereo).
- Signal-to-noise ratio:
- FM: 63 dB (stereo)
MW: 45 dB
- Channel separation:
- FM: 40 dB (at 1 kHz)
- Selectivity: (IHF)
- FM: 50 dB
- MW: 45 dB
- Equal wave selection:
- FM: 3.0 dB
- Spurious wave selection:
- FM: 45 dB
- Image frequency attenuation:
- FM: 60 dB
- MW: 45 dB
IF attenuation:
- FM: 90 dB
- AM suppression: 60 dB
Technical Data Amplifier Part
- Continuous power Quadro operation:
- 8 Ohm: 4 x 50 W (1 kHz)
4 Ohm:
- Dynamic power
- 8 Ohm:
- 4 Ohm: 340 W
- Continuous power stereo operation:
- 8 Ohm:
- 4 Ohm:
- Dynamic power
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: 0.8% (at rated power)
- Attenuation factor: 30 (8 Ohm)
- Frequency response:
- Preamplifier: 20 - 40,000 Hz ± 1 dB)
- Power bandwidth: 10 - 45,000 Hz
- Signal-to-noise ratio:
- Phono 1,2: 60 dB
- Microphone: 60 dB
- AUX, Tape: 75 dB
- Tone control:
- Bass: ± 10 dB at 100 Hz
Treble: ± 10 dB at 10 kHz
- Loudness: + 10 / + 5 dB (100 Hz / 10 kHz)
- Low Filter (Subsonic): - 8 dB at 100 Hz
- High Filter: - 6 dB at 10 kHz
- Mute: FM Muting
Special Features
- 4 VU meters
- With this device additional VHF center display instrument
- Switch for VU meter: + 20 dB
- Switch for 4-channel RM, SQ, Discrete / Stereo / Mono
- Input for CD-4 demodulator insert for KCD-2
- Bass and treble control separately for front / rear
Remarks[edit]
- Other models in the same series:
- [[Kenwood CD-4 demodulator plug-in unit KCD-2
- Kenwood KCD-2
- Introduction to Kenwood 4-channel playback technology.
Pictures[edit]
- Extract from brochure: Kenwood KR-9940 Front
Reports[edit]
- Report at "Hifi-Museum" [=quadro]
Links[edit]
- External link: KR-7340 "The Vintage Knob" website: [1]