Difference between revisions of "Kenwood KA-907"
 
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== Daten ==
+
== Data ==
−
'''Allgemein'''
+
{{navigation}}
−
* Hersteller: [[Kenwood]]
+
'''General'''
−
* Modell: KA-907
+
* Manufacturer: [[Kenwood]]
−
* Baujahre: 1980-1982
+
* Model: KA-907
−
* Hergestellt in: Japan
+
* Type: Stereo integrated amplifier
−
* Farbe: silber
+
* Years of manufacture: 1979 - 1981
−
* Typ: Analog
+
* Made in: Japan
−
* Fernbedienung: nein
+
* Colour: Silver, variants [[Kenwood KA-9077]] in grey metallic, Trio KA-9900 Japan execution
−
* Leistungsaufnahme: 800 Watt (bei Vollaussteuerung)
+
* Power consumption: 1000 W at full power
−
* Abmessungen:  
+
* Dimensions (WxHxD): 460 x 161 x 463 mm
−
** Verstärker (BxHxT): 440 x 123 x 383 mm
+
* Weight: 25,8 kg
−
** Netzteil (BxHxT): 140 x 123 x 358 mm
+
* Original price approx.: 2'798 DM
−
* Gewicht:
+
* New price D-90 handles: 200 DM
−
** Verstärker: 6,4kg
 
−
** Netzteil: 8kg
 
−
* Neupreis ca.: 145'000 Yen (Japan, 1980), 2000 DM
 
  
  
−
'''Anschlüsse'''
+
'''Connections'''
−
* Anzahl der Eingänge: 6
+
* Number of inputs:
−
* Tape A & B, AUX, Tuner, Phono 1 & 2 (Empfindlichkeit/Impedanz gerade nicht bekannt)
+
** Input sensitivity:
−
* Anzahl der Ausgänge: 5
+
** Phono 1 MM: 2.5mV, 33 kOhm, 47 kOhm, 100 kOhm, max 230mV RMS (1Khz, 0.01% THD).
−
* Tape A & B, Speaker A & B, Phones (Empfindlichkeit/Impedanz gerade nicht bekannt)
+
** Phono 1 MC: 0.1mV, 100 Ohm, max. 9mV RMS (1Khz, 0.01% THD)
 +
** Phono 2 MM: 2.5mV, 47 kOhm, 47 kOhm, 100 kOhm, max. 230mV RMS (1Khz, 0.01% THD)
 +
** Tuner: 150mV, 50 kOhm
 +
** AUX 1,2: 150mV, 50 kOhm
 +
** Tape Play A, B: 150mV, 50 kOhm
 +
** Main In: 1V / 50kOhm
 +
* Number of Outputs:
 +
** Outputs:
 +
** Tape Rec: 150mV, 180 Ohm
 +
DIN: 30mV / 80 Ohm
 +
** Pre Out: 9V max. / 750 Ohm
 +
** Headphones
 +
** 2 pairs of speakers
  
  
−
'''Technische Daten'''
+
'''Technical Data'''
−
* Dauerleistung:
+
* Continuous power (at THD)
−
** 8 Ohm: links 125 W rechts 120 W ( Labor Werte ) bei 0,1% Klirrfaktor
+
** 8 Ohm: 2x 150W (RMS, 20 Hz - 20 kHz, 0.01% THD), 2x 150W (1Khz)
−
** 4 Ohm: links 127 W rechts 110 W ( Labor Werte ) bei 0,1% Klirrfaktor
+
** 4 Ohm: 2x 180W (1Khz)  
−
* Dynamikleistung:
+
* Dynamic power
−
** 8 Ohm:  
+
** 8 Ohm:
−
** 4 Ohm: 320 Watt
+
** 4 Ohm:  
−
* Gesamtklirrfaktor: 0,008 %
+
* Total harmonic distortion:
−
* Dämpfungsfaktor: 600 am Ende des Sigma-Drive Kabel
+
** Phono: 0.01% (rated power, volume at -20dB).
−
* Frequenzgang: DC-400 khz
+
** Phono IMD: 0.0045% (nominal power, 8 Ohm)
−
* Signalrauschabstand: 105 dB
+
High Level: 0.01% (nominal power, 20Hz - 20kHz, 8 Ohm)
−
* Stereokanaltrennung: Stereo-Endstufe in Mono-Block-Bauweise
+
** High Level: 0.006% (1/2 nominal power, 20Hz - 20Khz, 8 Ohm)
−
* Klangregelung:
+
* Attenuation Factor: 100 (DC - 20Khz, 8 Ohm)
−
** Bass: + - 10 db ( Turnover 200 / 400 Hz )
+
* Frequency Response:  
−
** Höhen:+ - 10 db ( Turnover  3  / 6  Khz )
+
** DC - 400 kHz (+0 / -3dB, DC ON).
−
* Loudness: Ja/+10dB/100Hz (ausgesprochen schlechtes Loudness)
+
** 1Hz - 400kHz (+0 / -3dB, DC OFF)
−
* High Filter:nein
+
** 20Hz - 20kHz (RIAA, ±0.2dB)
−
* Low Filter(Subsonic): Ja (unbrauchbar)(bei Kenwood leider Brauch)
+
* Power bandwidth: 5Hz - 100Khz (0.03% THD), -70dB (DIN 45500)
−
* Mute:ja
+
* Signal-to-noise ratio:
−
* Direct/Line-Straight: ja
+
** Phono 1, 2 MM: 90dB at 2.5mV
 +
** Phono 1, 2 MM: 96dB at 5,0mV
 +
** Phono 1, 2 MM: 102dB at 10mV
 +
** Phono 2 MC: 70dB at 0,1mV
 +
** Phono 2 MC: 76dB at 0.2mV
 +
** Phono 2 MC: 105dB at 150mV
 +
** Tuner, AUX, Tape, A, B: 105dB for 150mV input
 +
* Rise Time: 0.5 to 0.8 µS 
 +
* Slew Rate: ± 230V/µS
 +
* Tone Control
 +
** Bass:  
 +
*** 150Hz : ± 7.5dB at 75Hz, ±10dB at 25Hz.
 +
*** 400Hz : ± 7.5dB at 155Hz, ±10dB at 50Hz.
 +
Treble:
 +
*** 3Khz : ± 7.5dB at 10kHz, ±10dB at 20kHz
 +
*** 6Khz : ± 7.5dB at 20kHz, ±10dB at 40kHz
 +
Loudness : +3 / +6 / +9dB at 30Hz or 100Hz  
 +
* High Filter : 12dB / octave above 8Khz
 +
* Subsonic Filter : 6dB / octave below 18Hz
  
  
−
'''Besondere Ausstattungen'''
+
'''Special Features'''
−
* Separates Netzteil
+
* Pre- / power stage separable
−
* Hochleistungsverstärker  klingt zuletzt so gut wie 7000 - 8000 DM teure Geräte , bleibt letztenendes nicht ganz so sauber .
 
−
* Erster Verstärker mit Sigma Drive
 
−
* Audio-Purist-Linie
 
  
  
−
== Bemerkungen ==
+
== Remarks ==
−
* Weitere Modelle der gleichen Serie:
+
* Other models in the same series:
−
** Kenwood KA-30
+
** [[Kenwood KA-305]]
−
*** [[Kenwood KA-30|KA-30]]
+
** [[Kenwood KA-501]]
−
** Kenwood KA-50
+
** [[Kenwood KA-601]]
−
*** [[Kenwood KA-50|KA-50]]
+
** [[Kenwood KA-701]]
−
** Kenwood KA-60
+
** [[Kenwood KA-801]]
−
*** [[Kenwood KA-60|KA-60]]
+
** [[Kenwood KA-907]]
−
** Kenwood KA-70
 
−
*** [[Kenwood KA-70|KA-70]]
 
−
** Kenwood KA-80
 
−
*** [[Kenwood KA-80|KA-80]]
 
−
** Kenwood KA-500
 
−
*** [[Kenwood KA-500|KA-500]]
 
−
** Kenwood KA-800
 
−
*** [[Kenwood KA-800|KA-800]]
 
−
** Kenwood KA-900
 
−
*** [[Kenwood KA-900|KA-900]]
 
−
** Kenwood KA-1000
 
−
*** [[Kenwood KA-1000|KA-1000]]
 
  
  
−
* Korrespondierender Tuner:
+
* [[Corresponding Tuner]]
−
** Kenwood KT-1000
+
** [[Kenwood KT-917]]
−
*** [[Kenwood KT-1000|KT-1000]]
 
  
  
−
* Kenwood empfahl dazu die Lautsprecher:
+
== Pictures ==
−
** Kenwood LS-1900
+
* Extract from brochure: Kenwood KA-907
−
*** [[Kenwood LS-1900|LS-1900]]
+
[[File:Kenwood KA-907-Prospekt-1.jpg]]
  
  
−
* Für Hifi-Freaks gab es in der gleichen Serie noch die Vor- und Endstufenkombination sowie den Tuner L-07:
+
== Reviews ==
−
** Kenwood Vorstufe L-07 C II
+
* Audio Test attested real 202+202 watts at 8ohms and 308+308 watts at 4 ohms.
−
*** [[Kenwood L-07 C II|L-07 C II]]
 
−
** Kenwood Endstufe L-07 M II
 
−
*** [[Kenwood L-07 M II|L-07 M II]]
 
−
** Kenwood Endstufe L-07 T II
 
−
*** [[Kenwood L-07 T II|L-07 T II]]
 
  
 +
* Review by "Hifi Studio": [https://web.archive.org/web/20170604110040/http://www.hifi-studio.de/hifi-klassiker/kenwood/KA-907_KT-917/KA-907_KT-917.htm]
  
−
== Bilder ==
+
* Report from "Mackers": [http://www.mackern.de/index.php/2008/12/19/kenwood-ka-907/]
−
* Kenwood KA-1000
 
−
[[bild:Kenwood_KA-1000_groovminister.jpg|KA-1000 vor der Entsorgung]]
 
  
−
* Kenwood KA-1000 im Betrieb
+
* Report from "Good Old Hifi": [http://www.good-old-hifi.de/kenwood_ka-907/]
−
[[bild:Kenwood_KA-1000-2_groovminister.jpg|KA-1000 im Betrieb]]
 
  
  
−
== Berichte ==
+
* Fascination Kenwood KA-907!
−
* Bericht auf Webseite "Hifi Classic Net": [[http://www.hifi-classic.net/review/kenwood-ka-1000-263.html]]
+
* An amp. with unadulterated sound, absolute noise-free, stereo channel separation, the minimum distortion up to the highest volumes, no matter what speakers. The 907 shows how good speakers are. If the sound is bad, it is because of the speakers! An amp should reproduce signals without distortion, preferably with a lot of power, and the 907 does that brilliantly! The quality is unique! Especially for phono lovers! Developed by Trio-Kenwood!
−
 
 
−
* Bericht auf Webseite "Hifi Classic Net": [[http://www.hifi-classic.net/review/kenwood-ka-1000-263.html]]
 
  
  
 
== Links ==
 
== Links ==
−
* Externe Webseite "The Vintage Knob": [[http://www.thevintageknob.org/kenwood-KA-1000.html]]
+
* External link to website "Hifi Archive": [http://www.hifi-archiv.info/Kenwood/1980-1/07.jpg]
−
 
 
−
* Externe Webseite "Audio Heritage, Japan": [[http://audio-heritage.jp/TRIO-KENWOOD/amp/ka-1000.html]]
 
−
 
 
−
[[Kategorie:Vollverstärker]]
 
−
'''KENWOOD HIGH SPEED DC INTEGRATED AMPLIFIER'''
 
−
 
 
−
'''Leistung: 150+150 WPC minimum RMS beide Kanäle betrieben, an 8 Ohm zwischen 20Hz bis 20000Hz mit weniger als 0,01% total  harmonischer Verzerrungen           
 
−
               
 
−
 
 
−
Beide Kanäle betrieben:
 
−
                              150+150 Watt an 8Ohm bei 1000Hz
 
−
                              180+180 Watt an 4Ohm bei 1000Hz
 
−
von Audio Test
 
−
atesttierte tatsächliche
 
−
Dauerleistung:             
 
−
                            202+202 Watt an 8Ohm
 
−
                            308+308 Watt an 4 Ohm
 
−
 
 
−
Total harmonische Verzerrung
 
−
(20Hz bis 20000Hz)             
 
−
           
 
−
AUX Eingang bis SPEAKER Ausgang:       
 
−
                                        0,01% bei Vollaussteuerung an 8Ohm
 
−
                                        0,006% bei halber Aussteuerung an 8Ohm
 
−
Phono Eingang bis SPEAKER Ausgang:     
 
−
                                        0,01% bei Vollaussteuerung mit VOLUME bei -20dB
 
−
                                       
 
−
Intermodulations Verzerrung     
 
−
(60Hz: 7kHz=4:1)                       
 
−
                                        0,0045% bei Vollaussteuerung an 8Ohm
 
−
 
 
−
Dämpfungsfaktor:                       
 
−
                                        100. DC~20000Hz bei 8Ohm
 
−
 
−
Rise Time:                             
 
−
                                        0,5 bis 0,8 µS   
 
−
Slew Rate:                             
 
−
                                        +-230V/µS
 
−
Leistungsbandbreite:                   
 
−
                                        5Hz bis100kHz bei 0,003% T.H.D.
 
−
 
 
−
Frequenzgang:     
 
−
DC COUPLED an:                         
 
−
                                        DC bis 100kHz bei 0,003 T.H.D.
 
−
DC COUPLED aus:                       
 
−
                                        1Hz bis 400kHz +0dB, -3dB
 
−
Speakerimpedanz:                       
 
−
                                        4-16 Ohm
 
−
 
 
−
Eingansempfindlichkeit/Impedanz:
 
−
Power IN:                         
 
−
                                    1V/50kOhm
 
−
Phono1 (MM):                       
 
−
                                    2,5mV/33kOhm, 47kOhm und 100 kOhm
 
−
Phono2 (MM):                       
 
−
                                    2,5mV/47kOhm
 
−
Phono1 (MC):                       
 
−
                                    0,1mV/100Ohm
 
−
Tuner, AUX,Tape A, B:             
 
−
                                    150mV/50kOhm
 
−
 
 
−
Signal to Noise Ratio (IHF, A): 
 
−
Phono1&2 (MM):                     
 
−
                                    90dB für 2,5 mV Eingang
 
−
                                    96dB für 5mV Eingang
 
−
                                    102 für 10 mV Eingang
 
−
Phono1 (MC):                       
 
−
                                    70dB für 0,1 mV Eingang 
 
−
                                    76dB fürfür 0,2 mV Eingang
 
−
Tuner, AUX, Tape, A, B:             
 
−
                                    105dB für 150mV Eingang
 
−
 
 
−
Maximaler Einganslevel: 
 
−
 
 
−
für Phono1&2 (MM):                 
 
−
                                    230mV (RMS), T.H.D. 0,01% bei 1000Hz
 
−
für Phono1 (MC):                   
 
−
                                    9mV (RMS), T.H.D. 0,01% bei 1000Hz
 
−
 
 
−
Ausgangslevel Impedanz:     
 
−
 
 
−
Tape REC (pin):                     
 
−
                                    150mV/180Ohm
 
−
        (DIN):                      30mV/80kOhm
 
−
PRE OUT (Maximum):                 
 
−
                                    9V/750Ohm 
 
−
 
 
−
Frequenzgang für Phono:           
 
−
                                          RIAA standart curve +-2dB                         
 
−
                                          (20Hz bis 20000Hz)
 
−
 
−
Klangregelung:               
 
  
−
Bass:                              
+
* External link on website "The Vintage Knob": [http://www.thevintageknob.org/kenwood-KA-907.html]
−
                                    +-10dB Crossover Freq. 400Hz und 150Hz
 
−
Treble:                             
 
−
                                    +-10dB Crossover Freq. 3kHz und 6 kHz
 
  
−
Loudness (gehörrichtige Lautstärkeanhebung) 
 
−
(at-50dB VOLUME Level)
 
−
                                            +3dB, +6dB, +9dB bei 30Hz oder 100Hz
 
−
Subsonic Filter:             
 
−
                              18Hz, 6dB/oct
 
−
High Filter:                 
 
−
                              8kHz, 12dB/oct
 
  
−
GENERELL
+
[[Category:Integrated Amplifier]]
−
Leistungsaufnahme:       
 
−
                              1000 Watt
 
−
A,C Outlet:                 
 
−
                              Switched 2, Unswitched 2
 
−
Größe:                       
 
−
                              BxHxT= 460x161x463mm
 
−
Gewicht:                     
 
−
                              25,8Kg (56,9lbs)
 
−
alle Waagen auf denen ich
 
−
Ihn hatte zeigten aber:     
 
−
                              28,3Kg
 
−
 
−
Das obere Gerät repräsentiert den passenden Tuner [[Kenwood KT-917]] die Daten zu Diesem Folgen noch in der entsprechenden Rubrik.
 
−
http://img264.imageshack.us/img264/3295/75726681th0.jpg
 
−
[[Kategorie:Vollverstärker]]
 

Latest revision as of 03:02, 1 January 2021

Data[edit]

General

  • Manufacturer: Kenwood
  • Model: KA-907
  • Type: Stereo integrated amplifier
  • Years of manufacture: 1979 - 1981
  • Made in: Japan
  • Colour: Silver, variants Kenwood KA-9077 in grey metallic, Trio KA-9900 Japan execution
  • Power consumption: 1000 W at full power
  • Dimensions (WxHxD): 460 x 161 x 463 mm
  • Weight: 25,8 kg
  • Original price approx.: 2'798 DM
  • New price D-90 handles: 200 DM


Connections

  • Number of inputs:
    • Input sensitivity:
    • Phono 1 MM: 2.5mV, 33 kOhm, 47 kOhm, 100 kOhm, max 230mV RMS (1Khz, 0.01% THD).
    • Phono 1 MC: 0.1mV, 100 Ohm, max. 9mV RMS (1Khz, 0.01% THD)
    • Phono 2 MM: 2.5mV, 47 kOhm, 47 kOhm, 100 kOhm, max. 230mV RMS (1Khz, 0.01% THD)
    • Tuner: 150mV, 50 kOhm
    • AUX 1,2: 150mV, 50 kOhm
    • Tape Play A, B: 150mV, 50 kOhm
    • Main In: 1V / 50kOhm
  • Number of Outputs:
    • Outputs:
    • Tape Rec: 150mV, 180 Ohm

DIN: 30mV / 80 Ohm

    • Pre Out: 9V max. / 750 Ohm
    • Headphones
    • 2 pairs of speakers


Technical Data

  • Continuous power (at THD)
    • 8 Ohm: 2x 150W (RMS, 20 Hz - 20 kHz, 0.01% THD), 2x 150W (1Khz)
    • 4 Ohm: 2x 180W (1Khz)
  • Dynamic power
    • 8 Ohm:
    • 4 Ohm:
  • Total harmonic distortion:
    • Phono: 0.01% (rated power, volume at -20dB).
    • Phono IMD: 0.0045% (nominal power, 8 Ohm)

High Level: 0.01% (nominal power, 20Hz - 20kHz, 8 Ohm)

    • High Level: 0.006% (1/2 nominal power, 20Hz - 20Khz, 8 Ohm)
  • Attenuation Factor: 100 (DC - 20Khz, 8 Ohm)
  • Frequency Response:
    • DC - 400 kHz (+0 / -3dB, DC ON).
    • 1Hz - 400kHz (+0 / -3dB, DC OFF)
    • 20Hz - 20kHz (RIAA, ±0.2dB)
  • Power bandwidth: 5Hz - 100Khz (0.03% THD), -70dB (DIN 45500)
  • Signal-to-noise ratio:
    • Phono 1, 2 MM: 90dB at 2.5mV
    • Phono 1, 2 MM: 96dB at 5,0mV
    • Phono 1, 2 MM: 102dB at 10mV
    • Phono 2 MC: 70dB at 0,1mV
    • Phono 2 MC: 76dB at 0.2mV
    • Phono 2 MC: 105dB at 150mV
    • Tuner, AUX, Tape, A, B: 105dB for 150mV input
  • Rise Time: 0.5 to 0.8 µS
  • Slew Rate: ± 230V/µS
  • Tone Control
    • Bass:
      • 150Hz : ± 7.5dB at 75Hz, ±10dB at 25Hz.
      • 400Hz : ± 7.5dB at 155Hz, ±10dB at 50Hz.

Treble:

      • 3Khz : ± 7.5dB at 10kHz, ±10dB at 20kHz
      • 6Khz : ± 7.5dB at 20kHz, ±10dB at 40kHz

Loudness : +3 / +6 / +9dB at 30Hz or 100Hz

  • High Filter : 12dB / octave above 8Khz
  • Subsonic Filter : 6dB / octave below 18Hz


Special Features

  • Pre- / power stage separable


Remarks[edit]



Pictures[edit]

  • Extract from brochure: Kenwood KA-907

Kenwood KA-907-Prospekt-1.jpg


Reviews[edit]

  • Audio Test attested real 202+202 watts at 8ohms and 308+308 watts at 4 ohms.
  • Review by "Hifi Studio": [1]
  • Report from "Mackers": [2]
  • Report from "Good Old Hifi": [3]


  • Fascination Kenwood KA-907!
  • An amp. with unadulterated sound, absolute noise-free, stereo channel separation, the minimum distortion up to the highest volumes, no matter what speakers. The 907 shows how good speakers are. If the sound is bad, it is because of the speakers! An amp should reproduce signals without distortion, preferably with a lot of power, and the 907 does that brilliantly! The quality is unique! Especially for phono lovers! Developed by Trio-Kenwood!


Links[edit]

  • External link to website "Hifi Archive": [4]
  • External link on website "The Vintage Knob": [5]
Retrieved from "https://hifi-wiki.com/index.php?title=Kenwood_KA-907&oldid=262881"