Editing Hitachi SR-904

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__NOTOC__
 
__NOTOC__
== Data ==
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== Daten ==
{{navigation}}
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{{Navigation}}
'''General'''
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'''Allgemein'''
* Manufacturer: [[Hitachi]]
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* Hersteller:[[Hitachi]]
* Model: SR-904
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* Modell: SR-904
* Type: Receiver
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* Baujahre:
* Years of manufacture: 1979 - 1980
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* Hergestellt in:
* Made in: Japan
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* Farbe:
* Color: Silver
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* Fernbedienung:
* Remote control: no
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* Leistungsaufnahme:
* Power consumption: 250 W
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* Abmessungen:
* Dimensions: 490 x 144 x 400 mm (WxHxD)
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* Gewicht:
* Weight: 13,5 kg
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* Neupreis ca.:
* Original price approx.: 1'200 DM
 
  
  
'''Connections'''
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'''Anschlüsse'''
* Number of inputs:
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* Anzahl der Eingänge:
** Phono: 2.5 mV / 47 kOhm, 220 mV max.
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** hier die Eingänge aufzählen (mit Empfindlichkeit/Impedanz)
** Aux: 200 mV / 50 kOhm
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* Anzahl der Ausgänge:
** Tape Play 1, 2: 200 mV / 50 kOhm
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** hier die Ausgänge aufzählen (mit Pegel/Impedanz)
** Tape Play DIN 1, 2: 500 mV / 80 kOhm
 
Adapter: 200 mV / 50 kOhm
 
** Antenna FM / MW: 75 Ohm / 300 Ohm
 
* Number of outputs:
 
** Tape Rec 1, 2: 200 mV
 
** Tape Rec DIN 1, 2: 50 mV
 
Headphones
 
** 2 pairs of loudspeakers
 
  
  
'''Technical Data'''
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'''Technische Daten'''
  
''Amplifier''
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''Verstärker''
* Continuous power (DIN)
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* Dauerleistung (bei Klirrfaktor)
8 Ohm: 2x 75 W (RMS, 20 - 20'000 Hz)
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** 8 Ohm:
4 Ohm: 2x 100 W
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** 4 Ohm: 2x75 watt sinus ?
* Dynamic power
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* Dynamikleistung
** 8 Ohm: 2x 150 W
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** 8 Ohm:
** 4 Ohm:  
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** 4 Ohm:
* Total harmonic distortion: 0.09% (at nominal power)
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* Gesamtklirrfaktor:
* Attenuation factor: 45
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* Dämpfungsfaktor:
* Frequency response: 10 - 40'000 Hz, ± 1,5 dB
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* Frequenzgang:
* Power bandwidth: 8 - 40'000 Hz
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* Signalrauschabstand:
* Signal-to-noise ratio: (extraneous voltage)
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* Stereokanaltrennung:
** Phono: 75 dB
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* Klangregelung:
** High level: 87 dB
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** Bass:
* Tone control:
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** Höhen:
** Bass: ± 10 dB at 50 Hz, 100 Hz
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* Loudness:
*** Tilt frequencies: 150 Hz, 300 Hz
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* High Filter:
** Mids: ± 6 dB at 1 kHz
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* Low Filter (Subsonic):
Treble: ± 10 dB at 10 kHz, 20 kHz
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* Mute:
*** Tilt frequencies: 3 kHz, 6 kHz
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* Direct/Line-Straight:
Loudness: + 9 dB at 100 Hz, + 4 dB at 10 kHz
 
* High Filter: - 8 dB at 10 kHz, 12 dB / octave
 
* Low Filter (Subsonic): - 8 dB at 50 Hz, 12 dB / octave
 
* Mute:  
 
  
  
 
''Tuner''
 
''Tuner''
* Reception: FM, MW
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* Empfang:
* Frequencies:
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* Frequenzen:
** FM: 88 - 108 MHz
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** UKW:
MW: 530 - 1'605 kHz
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** etc..
* Frequency response: 30 - 15'000 Hz, + 0,5 dB, - 1 dB
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* Frequenzgang:
* Input sensitivity:
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* Eingangsmpfindlichkeit:
** VHF: 1.6 µV
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* Klirrfaktor:
MW: 20 µV
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* Signalrauschabstand:
* Distortion factor:
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* Kanaltrennung:
** FM: 0.2% (mono), 0.3% (stereo)
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* Trennschärfe:
MW: 0.2%
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* Gleichwellenselektion:
Signal-to-noise ratio:
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* Nebenwellenselektion:
** FM: 74 dB / 68 dB (mono/stereo).
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* Spiegelfrequenzdämpfung:
** MW: 50 dB
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* ZF-Dämpfung:
* Channel separation: 45 dB
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* AM-Unterdrückung:
* Selectivity:
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* Ausgangspegel:
** FM: 85 dB
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* RDS:
** MW: 40 dB
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* Stationsspeicher:
* Equal wave selection:
 
** FM: 1 dB
 
* Spurious wave selection: 100 dB
 
* Mirror frequency attenuation:
 
** FM: 85 dB
 
MW: 70 dB
 
* IF attenuation:  
 
** FM: 100 dB
 
** MW: 90 dB
 
* AM suppression: 55 dB
 
  
  
'''Special Features'''
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'''Besondere Ausstattungen'''
* Pre-/power stage separable
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* Class G Schaltung
* 2 VU meters
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* 2 Meter für Tuning und zwei für Leistung ?
* VHF Muting, Auto Lock
 
  
 +
== Bemerkungen ==
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* Für die damalige Zeit recht modernes Design
  
== Comments ==
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Weitere Modelle der gleichen Serie:
* Other models in the same series:  
 
* [[Hitachi SR-504]]
 
* [[Hitachi SR-604]]
 
* [[Hitachi SR-804]]
 
* [[Hitachi SR-904]]
 
* [[Hitachi SR-2004]]
 
  
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== Bilder ==
  
== Pictures ==
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== Berichte ==
* Image: Hitachi SR-904
 
[[File:Hitachi SR-904-1.jpg|1600px]]
 
 
 
 
 
== Reports ==
 
* Review at "Good Old Hifi": [[http://www.good-old-hifi.de/hitachi_sr-904/]]
 
 
 
* Report at "Good Old Hifi": [[http://www.good-old-hifi.de/hitachi_sr-904-2/]]
 
 
 
  
 
== Links ==
 
== Links ==
  
 
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[[Kategorie:Receiver]]
[[Category:Receiver]]
 

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