Difference between revisions of "Onkyo A-8870"

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== Daten ==
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== Data ==
{{Navigation}}
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{{navigation}}
'''Allgemein'''
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'''General'''
* Hersteller: [[Onkyo]]
+
* Manufacturer: [[Onkyo]]
* Modell: A-8870 (baugleich an A-809)
+
* Model: A-8870 (identical in construction with Onkyo A-809)
* Baujahre: 1992-1996 (A-809: 1991-1995)
+
* Years of manufacture: 1992 - 1996 (A-809: 1991-1995)
* Hergestellt in: Japan
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* Made in: Japan
* Farben: Schwarz, Polarsilber
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* Colours: Black, Polar silver
* Typ: Vollverstärker, analog
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* Type: Integrated amplifier, analogue
* Fernbedienung: Ja ( RC 207 S )  
+
* Remote control: Yes (RC 207 S)  
* Leistungsaufnahme: 280 Watt
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* Power consumption: 280 watts
* Abmessungen: 455 x 170 x 420 mm
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* Dimensions: 455 x 170 x 420 mm (WxHxD)
* Gewicht: 16,7 Kg
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* Weight: 16,7 kg
* Neupreis ca.: 2199,€
+
* Original price approx.: 1'900 DM
  
  
'''Anschlüsse'''
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'''Connections'''
* Anzahl der Eingänge: 8
+
* Number of inputs: 8
** Phono (MM): 2,5 mV / 50 kΩ
+
** Phono (MM): 2.5 mV / 50 kΩ
 
** Phono (MC): 150 µV / 130 Ω
 
** Phono (MC): 150 µV / 130 Ω
** CD:         150 mV / 30 kΩ
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** CD: 150 mV / 30 kΩ
** Tuner:     150 mV / 30 kΩ
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** Tuner: 150 mV / 30 kΩ
** Tape 1:     150 mV / 30 kΩ
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** Tape 1: 150 mV / 30 kΩ
** Tape 2:     150 mV / 30 kΩ
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** Tape 2: 150 mV / 30 kΩ
** DAT:       150 mV / 30 kΩ
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DAT: 150 mV / 30 kΩ
  
* Anzahl der Ausgänge: 3
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* Number of outputs: 3
** Tape 1:     150 mV / 1 kΩ
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** Tape 1: 150 mV / 1 kΩ
** Tape 2:     150 mV / 1 kΩ
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** Tape 2: 150 mV / 1 kΩ
** DAT:       150 mV / 1 kΩ
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** DAT: 150 mV / 1 kΩ
  
  
'''Technische Daten'''
+
'''Technical Data'''
* Sinusleistung (bei Klirrfaktor)
+
* Sine power (at distortion).
 
** 8 Ohm: 105 Watt (0,008%)
 
** 8 Ohm: 105 Watt (0,008%)
 
** 4 Ohm: 160 Watt (0,008%)
 
** 4 Ohm: 160 Watt (0,008%)
* Ausgangsleistung
+
* Output power
 
** 8 Ohm: 155 Watt
 
** 8 Ohm: 155 Watt
 
** 4 Ohm: 235 Watt
 
** 4 Ohm: 235 Watt
 
** 2 Ohm: 303 Watt
 
** 2 Ohm: 303 Watt
* Gesamtklirrfaktor: 0,008%
+
* Total harmonic distortion: 0.008%.
* Dämpfungsfaktor: 150 an 8 Ω
+
* Attenuation factor: 150 at 8 Ω
* Frequenzgang: 2 - 50.000 Hz
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* Frequency response: 2 - 50,000 Hz
* Signalrauschabstand: 107 dB (CD, AUX)
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* Signal-to-noise ratio: 107 dB (CD, AUX).
* Stereokanaltrennung:
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* Stereo channel separation:
* Klangregelung: Ja
+
* Tone control: Yes
** Bass: ± 8 dB bei 100 Hz
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** Bass: ± 8 dB at 100 Hz
** Höhen: ± 8 dB bei 10 kHz
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Treble: ± 8 dB at 10 kHz
* Loudness: Nein
+
* Loudness: No
* High Filter: Ja
+
* High Filter: Yes
* Low Filter (Subsonic): Ja
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* Low Filter (Subsonic): Yes
* Mute: Ja
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* Mute: Yes
* Direct/Line-Straight: Ja
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* Direct/Line-Straight: Yes
  
  
'''Besondere Ausstattungen'''
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'''Special Features'''
* Servobetriebener Eingangswahlschalter
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* Servo operated input selector switch
* Sehr gute Verarbeitung, kräftige Endstufen.
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* Very good workmanship, powerful output stages
  
== Bemerkungen ==
 
Weitere Modelle der gleichen Serie:
 
* [[Onkyo A-8820|A-8820]]
 
* [[Onkyo A-8830|A-8830]]
 
* [[Onkyo A-8850|A-8850]]
 
* [[Onkyo A-8870|A-8870]]
 
  
== Bilder ==
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== Remarks ==
[[Bild:OnkyoA-8870.jpg]]
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* Other models in the same series:
 +
* [[Onkyo A-8820]]
 +
* [[Onkyo A-8830]]
 +
* [[Onkyo A-8850]]
 +
* [[Onkyo A-8870]]
  
  
 +
== Pictures ==
 +
* Image: Onkyo A-8870
 +
[[Image:OnkyoA-8870.jpg]]
  
[[Bild:OnkyoA-8870Innenleben.jpg]]
 
http://s14.directupload.net/images/140712/bfqyce6n.jpg
 
http://s14.directupload.net/images/111008/m8btpsut.jpg
 
http://s14.directupload.net/images/111008/uq3qpg4q.jpg
 
  
== Berichte ==
 
Eine bekannte Krankheit dieser Baureihe von Onkyo ist eine, mit der Zeit auftretende Fehlfunktion des Input Selectors.
 
  
Durch Verschmutzung und Korrosion innerhalb des Drehschalter kommt es häufig zu Kontaktproblemen,
+
[[Image:OnkyoA-8870Interior.jpg]]
was ein unregelmäßiges und willkürliches Herumspringen zwischen den Eingängen zur Folge hat.
 
Oft gibt es jedoch eine oder mehrere Stellungen des Drehschalters, in denen das Problem seltener bis überhaupt nicht mehr auftritt.
 
  
Das Problem lässt sich durch eine Behandlung des Innenlebens des Drehschalters mit Kontaktspray -
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[[http://s14.directupload.net/images/111008/m8btpsut.jpg
besser noch mit einer vorhergehenden mechanischen Reinigung der Kontaktflächen - fast immer beseitigen.
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[[http://s14.directupload.net/images/111008/uq3qpg4q.jpg
Ein erneutes Auftreten des Problems nach einem bestimmten Zeitrahmen, welcher von Stunden bis hin
+
 
zu Jahren reichen kann, lässt sich nicht ausschließen.
+
 
 +
== Reports ==
 +
* A known malady of this series of Onkyo is a, over time, malfunction of the Input Selector.
 +
* Due to dirt and corrosion within the rotary switch, contact problems are common, resulting in erratic and random jumping around between inputs. However, there is often one or more positions of the rotary switch where the problem occurs less frequently if at all.
 +
* The problem can almost always be eliminated by treating the inside of the rotary switch with contact spray, or better yet, mechanically cleaning the contact surfaces beforehand. A recurrence of the problem after a certain time frame, which can range from hours to years, cannot be ruled out.
 +
When using Contact Spray 60, you should always rinse afterwards (e.g. with Contact WL), as Contact 60 attacks non-ferrous metals!
 +
 
 +
 
 +
* Competitors : [[Onkyo A-8780]], [[Onkyo A-8870]], [[Pioneer A-702 R]], [[Yamaha AX-890]], [[Sony TA-F 690 ES]], [[Denon PMA-1080 R]], [[Denon PMA-1315 R]]
  
Man sollte bei Einsatz von Kontaktspray 60 stets danach eine Spülung (z.B. mit Kontakt WL durchführen, da Kontakt 60 Buntmetalle angreift!
 
  
 
== Links ==
 
== Links ==
  
[[Kategorie:Vollverstärker]]
+
 
 +
[[Category:Integrated amplifier]]

Latest revision as of 15:56, 23 September 2024

Data[edit]

General

  • Manufacturer: Onkyo
  • Model: A-8870 (identical in construction with Onkyo A-809)
  • Years of manufacture: 1992 - 1996 (A-809: 1991-1995)
  • Made in: Japan
  • Colours: Black, Polar silver
  • Type: Integrated amplifier, analogue
  • Remote control: Yes (RC 207 S)
  • Power consumption: 280 watts
  • Dimensions: 455 x 170 x 420 mm (WxHxD)
  • Weight: 16,7 kg
  • Original price approx.: 1'900 DM


Connections

  • Number of inputs: 8
    • Phono (MM): 2.5 mV / 50 kΩ
    • Phono (MC): 150 µV / 130 Ω
    • CD: 150 mV / 30 kΩ
    • Tuner: 150 mV / 30 kΩ
    • Tape 1: 150 mV / 30 kΩ
    • Tape 2: 150 mV / 30 kΩ

DAT: 150 mV / 30 kΩ

  • Number of outputs: 3
    • Tape 1: 150 mV / 1 kΩ
    • Tape 2: 150 mV / 1 kΩ
    • DAT: 150 mV / 1 kΩ


Technical Data

  • Sine power (at distortion).
    • 8 Ohm: 105 Watt (0,008%)
    • 4 Ohm: 160 Watt (0,008%)
  • Output power
    • 8 Ohm: 155 Watt
    • 4 Ohm: 235 Watt
    • 2 Ohm: 303 Watt
  • Total harmonic distortion: 0.008%.
  • Attenuation factor: 150 at 8 Ω
  • Frequency response: 2 - 50,000 Hz
  • Signal-to-noise ratio: 107 dB (CD, AUX).
  • Stereo channel separation:
  • Tone control: Yes
    • Bass: ± 8 dB at 100 Hz

Treble: ± 8 dB at 10 kHz

  • Loudness: No
  • High Filter: Yes
  • Low Filter (Subsonic): Yes
  • Mute: Yes
  • Direct/Line-Straight: Yes


Special Features

  • Servo operated input selector switch
  • Very good workmanship, powerful output stages


Remarks[edit]


Pictures[edit]

  • Image: Onkyo A-8870

OnkyoA-8870.jpg


File:OnkyoA-8870Interior.jpg

[[m8btpsut.jpg [[uq3qpg4q.jpg


Reports[edit]

  • A known malady of this series of Onkyo is a, over time, malfunction of the Input Selector.
  • Due to dirt and corrosion within the rotary switch, contact problems are common, resulting in erratic and random jumping around between inputs. However, there is often one or more positions of the rotary switch where the problem occurs less frequently if at all.
  • The problem can almost always be eliminated by treating the inside of the rotary switch with contact spray, or better yet, mechanically cleaning the contact surfaces beforehand. A recurrence of the problem after a certain time frame, which can range from hours to years, cannot be ruled out.

When using Contact Spray 60, you should always rinse afterwards (e.g. with Contact WL), as Contact 60 attacks non-ferrous metals!



Links[edit]