Difference between revisions of "Pioneer A-858"
 
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__NOTOC__
 
__NOTOC__
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== Daten ==
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== Short description ==
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{{Navigation}}
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Amplifier derived from the A-757 (and thus from the A-717) with even larger transformers and even more power in an oversized cabinet, successor of the A-88X, very similar to the analog section of the A-90D/A-91D. However, only introduced at the same time as the A-757 and A-656, therefore smaller knobs already made of plastic and plugged instead of screwed.
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'''Allgemein'''
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== Data ==
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* Hersteller: Pioneer
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{{navigation}}
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* Modell: A-858
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'''General'''
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* Baujahre:
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* Manufacturer: [[Pioneer]]
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* Hergestellt in:
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* Model: A-858
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* Farbe: schwarz
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* Type: Integrated amplifier
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* Typ: (Digital/Analog)
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* Years of manufacture: 1989 - 1991
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* Fernbedienung:
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* Made in: Japan
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* Leistungsaufnahme:
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* Color: Black
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* Abmessungen: 42cm x 17,2cm x 47,4cm (BxHxT)
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* Power consumption: 1000W (max)
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* Gewicht: 24,5 kg
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* Dimensions: 420 x 172 x 474 mm (WxHxD)
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* Neupreis ca.:
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* Weight: 24,5 kg
 +
* Original price approx.: 1'500 DM
  
  
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'''Anschlüsse'''
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'''Connections'''
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* Anzahl der Eingänge: 8
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* Number of inputs: 8
 
** Phono
 
** Phono
 
** Tuner
 
** Tuner
−
** CD/DVD
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CD/DVD
 
** Line/Aux
 
** Line/Aux
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** Tape/MD/DAT-1
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** Tape-1/DAT
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** Tape/MD/DAT-2
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** Tape-2
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** Tape/MD/DAT-3
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** Tape-3
 
** Adaptor In-Out / Pre-Out
 
** Adaptor In-Out / Pre-Out
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* Anzahl der Ausgänge:
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Number of outputs:
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** hier die Ausgänge aufzählen (mit Pegel/Impedanz)
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** list the outputs here (with level/impedance).
  
  
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'''Technische Daten'''
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'''Technical Data'''
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* Dauerleistung (bei Klirrfaktor)
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* Continuous power (with distortion factor)  
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** 8 Ohm: 2 x 120 Watt
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** 8 Ohm: 2 x 105 W / 0,03%
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** 4 Ohm: 2 x 180 Watt
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** 4 Ohm: 2 x 160 W / 0,05%
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** 2 Ohm: 2 x 350 Watt < 0,1% Klirrfaktor
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* Dynamic power
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* Dynamikleistung
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** 4 Ohm: 2 x 230 W
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** 8 Ohm:  
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** 2 Ohm: 2 x 350 W
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** 4 Ohm:  
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* Total harmonic distortion: 0.03%
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** 2 Ohm:
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* Attenuation factor 1kHz/20Hz ~ 20kHz, 8 Ohm: 200/70
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* Gesamtklirrfaktor:
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* Bandwidth power 0,05%, 8 Ohm: 5 - 60.000 Hz
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* Dämpfungsfaktor:
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* Signal-to-noise ratio phono MM: 74dB
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* Frequenzgang:
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* Signal-to-noise ratio CD, Tuner, Line, Tape: 92dB
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* Signalrauschabstand:
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* Stereo channel separation:
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* Stereokanaltrennung:
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* Tone control:
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* Klangregelung:
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** Bass: +-8dB (100Hz)
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** Bass:
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Treble: +-8dB (10kHz)
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** Höhen:
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* Loudness: Yes, Volume button -40dB position +5dB(100Hz) +3dB(10kHz).
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* Loudness:
 
 
* High Filter:
 
* High Filter:
−
* Low Filter (Subsonic):
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* Low Filter (Subsonic): Yes, key 17Hz (12db/oct.)
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* Mute:
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* Mute: Yes, button
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* Direct/Line-Straight:
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* Direct/Line-Straight: Yes
  
  
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'''Besondere Ausstattungen'''
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'''Special Features'''
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* hier, wenn vorhanden
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* Elaborate and solid workmanship
 +
* Extremely high output power (immense current stability)
 +
* Adapter loop (through bridge plug on the back)
 +
* Direct switch: for direct connection to the volume control
 +
* Phono switch for MM and MC cartridges + subsonic
 +
* Transformers in solid cast housings to protect against resonance and magnetic interference
 +
* Honeycomb-ribbed chassis and honeycomb-structured heat sink (resonance and vibration damping)
 +
* Robust power supply for stable supply during peak loads
 +
* Spatially separated stages, therefore elimination of mutual interference
 +
* Gold-plated connectors for phono and CD
  
  
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== Bemerkungen ==
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== Remarks ==
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Weitere Modelle der gleichen Serie:
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* Previous model:
 +
* [[Pioneer A-88X]]
  
  
 +
* Successor model:
 +
* [[Pioneer A-878]]
  
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glasklarer und dynamischer Klang
 
  
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sehr aufwendige und solide Verarbeitung
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* Other models in the same series:
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extrem hohe Ausgangsleistung (immense Stromfestigkeit)
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*[[Pioneer A-227]]
 +
*[[Pioneer A-337]]
 +
*[[Pioneer A-447]]
 +
*[[Pioneer A-656 MK II]]
 +
*[[Pioneer A-757 MK II]]
 +
*[[Pioneer A-858]]
  
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ordentliches Subsonic-Filter
 
  
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sehr gutes Rauschverhalten bei Hochpegel und Phono Eingangsteil
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== Pictures ==
 +
*[[Image: Pioneer A-858
 +
[[Image:Pioneer A858.jpg]]
  
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geringes Übersprechen zwischen den Eingängen
 
  
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sehr wirksame Loudness-Schaltung
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== Reports ==
  
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auftrennbare Vor- und Enstufe (durch Brückenstecker an der Rückseite)
 
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Anschlüsse für 2 Lautsprecherpaare (auch für dicke Querschnitte)
 
  
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Direct Schalter: Für direktes Durchstellen an die Lautstärkereglung
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== Links ==
  
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Mute Schaltung
 
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Phono Schalter für MM und MC Tonabnehmer + Subsonic
 
  
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Phono Vor-vorverstärker (zuschaltbar)
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[[Category:Integrated amplifier]]
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getrennte Spannungs- und Leistungsverstärkung
 
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Transformatoren in massiven Gußgehäusen zum Schutz vor Resonanzen und magnetischer Interferenzen
 
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Wabenrippenverstärktes Chassis und wabenstrukturierter Kühlkörper (Resonanz und vibrationsdämpfend)
 
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Robustes Netzteil für stabile Versorgung bei Lastspitzen
 
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räumlich getrennte Stufen, daher Wegfall gegenseitiger Interferenzen
 
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vergoldete Anschlußbuchsen für Phono und CD
 
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Kopfhörer-Klinkenausgang an der Frontseite
 
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===Bilder===
 
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[[Bild:Pioneer A858.jpg]]
 

Latest revision as of 23:52, 7 April 2021

Short description[edit]

Amplifier derived from the A-757 (and thus from the A-717) with even larger transformers and even more power in an oversized cabinet, successor of the A-88X, very similar to the analog section of the A-90D/A-91D. However, only introduced at the same time as the A-757 and A-656, therefore smaller knobs already made of plastic and plugged instead of screwed.

Data[edit]

General

  • Manufacturer: Pioneer
  • Model: A-858
  • Type: Integrated amplifier
  • Years of manufacture: 1989 - 1991
  • Made in: Japan
  • Color: Black
  • Power consumption: 1000W (max)
  • Dimensions: 420 x 172 x 474 mm (WxHxD)
  • Weight: 24,5 kg
  • Original price approx.: 1'500 DM


Connections

  • Number of inputs: 8
    • Phono
    • Tuner

CD/DVD

    • Line/Aux
    • Tape-1/DAT
    • Tape-2
    • Tape-3
    • Adaptor In-Out / Pre-Out

Number of outputs:

    • list the outputs here (with level/impedance).


Technical Data

  • Continuous power (with distortion factor)
    • 8 Ohm: 2 x 105 W / 0,03%
    • 4 Ohm: 2 x 160 W / 0,05%
  • Dynamic power
    • 4 Ohm: 2 x 230 W
    • 2 Ohm: 2 x 350 W
  • Total harmonic distortion: 0.03%
  • Attenuation factor 1kHz/20Hz ~ 20kHz, 8 Ohm: 200/70
  • Bandwidth power 0,05%, 8 Ohm: 5 - 60.000 Hz
  • Signal-to-noise ratio phono MM: 74dB
  • Signal-to-noise ratio CD, Tuner, Line, Tape: 92dB
  • Stereo channel separation:
  • Tone control:
    • Bass: +-8dB (100Hz)

Treble: +-8dB (10kHz)

  • Loudness: Yes, Volume button -40dB position +5dB(100Hz) +3dB(10kHz).
  • High Filter:
  • Low Filter (Subsonic): Yes, key 17Hz (12db/oct.)
  • Mute: Yes, button
  • Direct/Line-Straight: Yes


Special Features

  • Elaborate and solid workmanship
  • Extremely high output power (immense current stability)
  • Adapter loop (through bridge plug on the back)
  • Direct switch: for direct connection to the volume control
  • Phono switch for MM and MC cartridges + subsonic
  • Transformers in solid cast housings to protect against resonance and magnetic interference
  • Honeycomb-ribbed chassis and honeycomb-structured heat sink (resonance and vibration damping)
  • Robust power supply for stable supply during peak loads
  • Spatially separated stages, therefore elimination of mutual interference
  • Gold-plated connectors for phono and CD


Remarks[edit]




Pictures[edit]

  • [[Image: Pioneer A-858

Pioneer A858.jpg


Reports[edit]

Links[edit]

Retrieved from "https://hifi-wiki.com/index.php?title=Pioneer_A-858&oldid=276019"