Editing Hitachi HMA-8300

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== 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: HMA-8300
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* Modell: HMA-8300
* Type: Power amplifier, Class G, bipolar power transistors
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* Baujahre: 1977 - 1981
* Years of manufacture: 1976 - 1979
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* Hergestellt in: Japan
* Made in: Japan
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* Farbe: schwarz
* Color: Black
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* Typ: Stereo analog
* Remote control: No
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* Fernbedienung: Nein
* Power Consumption:  
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* Leistungsaufnahme: 850 W oder 1020 VA (bei 120 V~)
** 1470 W (220 V - 240 V~ 4 Ohm).
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                            1470 W (220 V - 240 V~ 4 Ohm)  
1100 W (220 V - 240 V~ 8 Ohm)
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                            1100 W (220 V - 240 V~ 8 Ohm)
** 850 W or 1020 VA (at 120 V~)
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* Abmessungen: 435 (B) x 182 (H) x 404 (T) mm
* Dimensions: 435 (W) x 182 (H) x 404 (D) mm
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* Gewicht: 24 kg
* Weight: 24 kg
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* Neupreis ca.: 140.000 Yen (1000 €)
* Original price approx.: 2'000 DM
 
  
  
'''Connections'''
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'''Anschlüsse'''
* Number of inputs: 1 (approx. 50kOhm input resistance)
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* Anzahl der Eingänge: 1 (ca. 50kOhm Eingangswiderstand)
* Number of outputs: 1 loudspeaker pair
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* Anzahl der Ausgänge: 1 Lautsprecherpaar
  
 
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'''Technische Daten'''
'''Technical Data'''
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* Dauerleistung (bei Klirrfaktor)
* Continuous power (at distortion factor)
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** 8 Ohm: 200 W/K. + 200 W/K. (20 Hz - 20 kHz, 0,1% Gesamtklirrfaktor)
** 8 Ohm: 200 W/K. + 200 W/K. (20 Hz - 20 kHz, 0.1% total harmonic distortion)
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** 4 Ohm: 200 W/K. + 200 W/K. ( 1 kHz, 0,1% Gesamtklirrfaktor)
** 4 Ohm: 200 W/K. + 200 W/K. ( 1 kHz, 0.1% total harmonic distortion)
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* Dynamikleistung
* Dynamic power
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** 8 Ohm: 400 W/K. + 400 W/K. (Musikleistung)
** 8 Ohm: 400 W/K. + 400 W/K. (music power)
 
 
** 4 Ohm:
 
** 4 Ohm:
* Total harmonic distortion:
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* Gesamtklirrfaktor:
** at 1W Less than 0.05%.
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** bei Nennleistung      Weniger als 0,1%
** at 100 W Less than 0,05%
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** bei 100 W             Weniger als 0,05%
** at rated power Less than 0.1%
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** bei 1W                Weniger als 0,05%
* Attenuation factor: 50 (20 Hz - 20 kHz, 8 Ohm), 100 (1 kHz, 8 Ohm)
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* Dämpfungsfaktor: 50 (20 Hz - 20 kHz, 8 Ohm), 100 (1 kHz, 8 Ohm)
* Frequency response: 5 Hz - 80 kHz (+/-1 dB)
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* Frequenzgang: 5 Hz - 80 kHz (+/-1 dB)
* Signal-to-noise ratio: Noise-to-noise ratio 110 dB (IHF, A-net)
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* Signalrauschabstand: Geräuschspannungsabstand 110 dB (IHF, A-Netz)
* Stereo channel separation: 80 dB (1 kHz, 8 Ohm)
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* Stereokanaltrennung: 80 dB (1 kHz, 8 Ohm)
* Loudspeaker impedance:
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* Lautsprecherimpedanz:
** 4-16 Ohm (except for Switzerland, UK & Sweden).
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** 4—16 Ohm (außer für die Schweiz, Großbritannien u. Schweden)
8-16 Ohm (for Switzerland, Great Britain and Sweden)
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** 8—16 Ohm (für die Schweiz, Großbritannien u. Schweden)
 
 
 
 
'''Special Features'''
 
* One gain control per channel
 
* switchable subsonic filter (rumble filter)
 
 
 
 
 
== Remarks ==
 
* First Class G amplifier ever offered. Marketed initially as "Dynaharmony" and "E-Series" (Series E). Late HMA-8300 models had the "Class G" designation directly. Class G technology reduces power dissipation in the power stage without sonic drawbacks, allowing the design of very high power amplifiers. Class G is widely used in stage and professional music today.
 
 
 
* The HMA-8300 power amplifier is built with bipolar (!) power transistors, which accommodates Class G technology. Hitachi developed and released 'Power MOSFET' transistors in amplifiers at about the same time, but did not use these power transistors in Class G circuits. The HMA-7500, HMA-7500 MkII or HMA-8500 MkII series of power amplifiers and others are built with Hitachi's 'Power MOSFET' power transistors. This other series of Hitachi power amps then had much greater success and the power amps were often reference by HiFi magazines.
 
 
 
* Other Class G ('Dynaharmony') devices from Hitachi:
 
* Preamplifiers:
 
* [[Hitachi HCA-8300]]
 
 
 
 
 
* Power amplifiers:
 
* [[Hitachi HA-5300]]
 
* [[Hitachi HMA-8300]]
 
 
 
  
* Receiver:
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'''Besondere Ausstattungen'''
* [[Hitachi SR-604]]
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* Ein Gain-Regler je Kanal
* [[Hitachi SR-804]]
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* zuschaltbares Subsonic Filter (Rumpelfilter)
* [[Hitachi SR-903]]
 
* [[Hitachi SR-2004]]
 
* [[Hitachi SR-6010]]
 
* [[Hitachi SR-8010]]
 
  
  
== Pictures ==
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== Bemerkungen ==
* Image: Hitachi HMA-8300
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Weitere Modelle der gleichen Serie:
[[Image:Hitachi HMA-8300 Front.jpg]]
 
  
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== Bilder ==
  
* Excerpt from brochure: Hitachi HCA-8300, HMA-8300
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== Berichte ==
[[File:Hitachi HCA-HMA-8300-Prospekt-1.jpg]]
 
 
 
 
 
== Reports ==
 
 
 
  
 
== Links ==
 
== Links ==
  
 
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[[Kategorie:Endstufen]]
[[Category:Power Amplifiers]]
 

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