Difference between revisions of "Hitachi SR-904"
 
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__NOTOC__
 
__NOTOC__
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== Daten ==
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== Data ==
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{{Navigation}}
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{{navigation}}
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'''Allgemein'''
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'''General'''
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* Hersteller: [[Hitachi]]
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* Manufacturer: [[Hitachi]]
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* Modell: SR-904
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* Model: SR-904
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* Typ: Receiver
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* Type: Receiver
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* Baujahre: 1978 - 1980
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* Years of manufacture: 1979 - 1980
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* Hergestellt in: Japan
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* Made in: Japan
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* Farbe: Silber
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* Color: Silver
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* Fernbedienung: nein
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* Remote control: no
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* Leistungsaufnahme: 850 W
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* Power consumption: 250 W
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* Abmessungen: 490 x 144 x 400 mm (BxHxT)
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* Dimensions: 490 x 144 x 400 mm (WxHxD)
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* Gewicht: 13,5 kg
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* Weight: 13,5 kg
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* Neupreis ca.: 1'600 DM
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* Original price approx.: 1'200 DM
  
  
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'''Anschlüsse'''
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'''Connections'''
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* Anzahl der Eingänge:
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* Number of inputs:
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** Phono 1, 2: 2,5 mV / 47 kOhm
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** Phono: 2.5 mV / 47 kOhm, 220 mV max.
 
** Aux: 200 mV / 50 kOhm
 
** Aux: 200 mV / 50 kOhm
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** Tape Play 1, 2: 200 mV / 35 kOhm
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** Tape Play 1, 2: 200 mV / 50 kOhm
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** Tape Play DIN 1, 2: 500 mV / 95 kOhm
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** Tape Play DIN 1, 2: 500 mV / 80 kOhm
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** Adapter: 150 mV / 35 kOhm
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Adapter: 200 mV / 50 kOhm
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** Antenne UKW / MW: 75 Ohm / 300 Ohm
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** Antenna FM / MW: 75 Ohm / 300 Ohm
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* Anzahl der Ausgänge:
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* Number of outputs:
 
** Tape Rec 1, 2: 200 mV
 
** Tape Rec 1, 2: 200 mV
 
** Tape Rec DIN 1, 2: 50 mV
 
** Tape Rec DIN 1, 2: 50 mV
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** Kopfhörer
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Headphones
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** 2 Lautsprecherpaare
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** 2 pairs of loudspeakers
  
  
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'''Technische Daten'''
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'''Technical Data'''
  
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''Verstärker''
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''Amplifier''
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* Dauerleistung (DIN)
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* Continuous power (DIN)
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** 8 Ohm: 2x 75 W (RMS, 20 - 20'000 Hz)
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8 Ohm: 2x 75 W (RMS, 20 - 20'000 Hz)
 +
4 Ohm: 2x 100 W
 +
* Dynamic power
 +
** 8 Ohm: 2x 150 W
 
** 4 Ohm:  
 
** 4 Ohm:  
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* Dynamikleistung
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* Total harmonic distortion: 0.09% (at nominal power)
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** 8 Ohm:
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* Attenuation factor: 45
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** 4 Ohm:
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* Frequency response: 10 - 40'000 Hz, ± 1,5 dB
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* Gesamtklirrfaktor: 0,09% (bei Nennleistung)
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* Power bandwidth: 8 - 40'000 Hz
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* Dämpfungsfaktor: 45
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* Signal-to-noise ratio: (extraneous voltage)
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* Frequenzgang:  
 
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** Phono: 30 - 15'000 Hz, ± 0,2 dB
 
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** Hochpegel: 8 - 40'000 Hz, ± 1,5 dB
 
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** Leistungsbandbreite: 10 - 40'000 Hz
 
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* Signalrauschabstand: (Fremdspannung)
 
 
** Phono: 75 dB
 
** Phono: 75 dB
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** Hochpegel: 87 dB
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** High level: 87 dB
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* Klangregelung:
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* Tone control:
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** Bass: ± 10 dB bei 50 Hz, 100 Hz
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** Bass: ± 10 dB at 50 Hz, 100 Hz
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*** Kippfrequenzen: 150 Hz, 300 Hz
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*** Tilt frequencies: 150 Hz, 300 Hz
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** Mitten: ± 6 dB bei 1 kHz
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** Mids: ± 6 dB at 1 kHz
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** Höhen: ± 10 dB bei 10 kHz, 20 kHz
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Treble: ± 10 dB at 10 kHz, 20 kHz
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*** Kippfrequenzen: 3 kHz, 6 kHz
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*** Tilt frequencies: 3 kHz, 6 kHz
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* Loudness: + 9 dB bei 100 Hz, + 4 dB bei 10 kHz  
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Loudness: + 9 dB at 100 Hz, + 4 dB at 10 kHz  
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* High Filter: - 10 dB bei 10 kHz, 12 dB / Oktave
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* High Filter: - 8 dB at 10 kHz, 12 dB / octave
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* Low Filter (Subsonic): - 10 dB bei 50 Hz, 12 dB / Oktave
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* Low Filter (Subsonic): - 8 dB at 50 Hz, 12 dB / octave
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* Mute: schaltbar 0 dB, - 20 dB, - 40 dB
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* Mute:  
  
  
 
''Tuner''
 
''Tuner''
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* Empfang: UKW, MW
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* Reception: FM, MW
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* Frequenzen:
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* Frequencies:
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** UKW: 88 - 108 MHz
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** FM: 88 - 108 MHz
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** MW: 530 - 1'605 kHz
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MW: 530 - 1'605 kHz
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* Frequenzgang: 30 - 15'000 Hz, + 0,5 dB, - 1 dB
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* Frequency response: 30 - 15'000 Hz, + 0,5 dB, - 1 dB
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* Eingangsempfindlichkeit:
+
* Input sensitivity:
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** UKW: 1,5 µV
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** VHF: 1.6 µV
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** MW: 20 µV
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MW: 20 µV
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* Klirrfaktor:
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* Distortion factor:
−
** UKW: 0,1% (Mono), 0,25% (Stereo)
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** FM: 0.2% (mono), 0.3% (stereo)
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** MW: 0,2%
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MW: 0.2%
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* Signalrauschabstand:
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Signal-to-noise ratio:
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** UKW: 75 dB / 70 dB (Mono/Stereo)
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** FM: 74 dB / 68 dB (mono/stereo).
−
** MW: 65 dB
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** MW: 50 dB
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* Kanaltrennung: 50 dB
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* Channel separation: 45 dB
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* Trennschärfe:
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* Selectivity:
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** UKW: 85 dB
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** FM: 85 dB
 
** MW: 40 dB
 
** MW: 40 dB
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* Gleichwellenselektion:
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* Equal wave selection:
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** UKW: 1 dB
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** FM: 1 dB
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* Nebenwellenselektion: 120 dB
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* Spurious wave selection: 100 dB
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* Spiegelfrequenzdämpfung:
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* Mirror frequency attenuation:
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** UKW: 115 dB
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** FM: 85 dB
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** MW: 70 dB
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MW: 70 dB
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* ZF-Dämpfung:  
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* IF attenuation:  
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** UKW: 115 dB
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** FM: 100 dB
 
** MW: 90 dB
 
** MW: 90 dB
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* AM-Unterdrückung: 60 dB
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* AM suppression: 55 dB
  
  
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'''Besondere Ausstattungen'''
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'''Special Features'''
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* Vor-/Endstufe auftrennbar
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* Pre-/power stage separable
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* 2 VU-Meter
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* 2 VU meters
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* UKW Muting, Auto Lock
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* VHF Muting, Auto Lock
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* UKW MPX Geräuschfilter
 
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* ZF-Filter umschaltbar, Narrow / Wide
 
  
  
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== Bemerkungen ==
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== Comments ==
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* Weitere Modelle der gleichen Serie:  
+
* Other models in the same series:  
 
* [[Hitachi SR-504]]
 
* [[Hitachi SR-504]]
 
* [[Hitachi SR-604]]
 
* [[Hitachi SR-604]]
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== Bilder ==
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== Pictures ==
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* Bild: Hitachi SR-904
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* Image: Hitachi SR-904
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[[Datei:Hitachi SR-904-1.jpg|1600px]]
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[[File:Hitachi SR-904-1.jpg|1600px]]
  
  
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== Berichte ==
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== Reports ==
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* Bericht bei "Good Old Hifi": [[http://www.good-old-hifi.de/hitachi_sr-904/]]
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* Review at "Good Old Hifi": [[http://www.good-old-hifi.de/hitachi_sr-904/]]
  
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* Bericht bei "Good Old Hifi": [[http://www.good-old-hifi.de/hitachi_sr-904-2/]]
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* Report at "Good Old Hifi": [[http://www.good-old-hifi.de/hitachi_sr-904-2/]]
  
  
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[[Kategorie:Receiver]]
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[[Category:Receiver]]

Latest revision as of 08:57, 20 October 2018

Data[edit]

General

  • Manufacturer: Hitachi
  • Model: SR-904
  • Type: Receiver
  • Years of manufacture: 1979 - 1980
  • Made in: Japan
  • Color: Silver
  • Remote control: no
  • Power consumption: 250 W
  • Dimensions: 490 x 144 x 400 mm (WxHxD)
  • Weight: 13,5 kg
  • Original price approx.: 1'200 DM


Connections

  • Number of inputs:
    • Phono: 2.5 mV / 47 kOhm, 220 mV max.
    • Aux: 200 mV / 50 kOhm
    • Tape Play 1, 2: 200 mV / 50 kOhm
    • 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

Amplifier

  • Continuous power (DIN)

8 Ohm: 2x 75 W (RMS, 20 - 20'000 Hz) 4 Ohm: 2x 100 W

  • Dynamic power
    • 8 Ohm: 2x 150 W
    • 4 Ohm:
  • Total harmonic distortion: 0.09% (at nominal power)
  • Attenuation factor: 45
  • Frequency response: 10 - 40'000 Hz, ± 1,5 dB
  • Power bandwidth: 8 - 40'000 Hz
  • Signal-to-noise ratio: (extraneous voltage)
    • Phono: 75 dB
    • High level: 87 dB
  • Tone control:
    • Bass: ± 10 dB at 50 Hz, 100 Hz
      • Tilt frequencies: 150 Hz, 300 Hz
    • Mids: ± 6 dB at 1 kHz

Treble: ± 10 dB at 10 kHz, 20 kHz

      • Tilt frequencies: 3 kHz, 6 kHz

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

  • Reception: FM, MW
  • Frequencies:
    • FM: 88 - 108 MHz

MW: 530 - 1'605 kHz

  • Frequency response: 30 - 15'000 Hz, + 0,5 dB, - 1 dB
  • Input sensitivity:
    • VHF: 1.6 µV

MW: 20 µV

  • Distortion factor:
    • FM: 0.2% (mono), 0.3% (stereo)

MW: 0.2% Signal-to-noise ratio:

    • FM: 74 dB / 68 dB (mono/stereo).
    • MW: 50 dB
  • Channel separation: 45 dB
  • Selectivity:
    • FM: 85 dB
    • MW: 40 dB
  • 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

  • Pre-/power stage separable
  • 2 VU meters
  • VHF Muting, Auto Lock


Comments[edit]


Pictures[edit]

  • Image: Hitachi SR-904

Hitachi SR-904-1.jpg


Reports[edit]

  • Review at "Good Old Hifi": [[1]]
  • Report at "Good Old Hifi": [[2]]


Links[edit]

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