Editing Pioneer A-757 MK II

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{{nicht vorlagenkonform}}
== Short description ==
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Auftrennbare Vor- und Endstufe
External differences from the A-757: smaller knobs replaced by cylindrical versions resembling the large knobs. Golden dot ''only'' on the volume pot. Inside: still horizontal circuit boards, but already no honeycomb housing around the volume pot at the back right of the unit. No copper bottom anymore!
 
== Data ==
 
{{navigation}}
 
'''General'''
 
* Manufacturer: [[Pioneer]]
 
* Model: A-757 MK II
 
* Type: Integrated amplifier
 
* Years of manufacture: 1990 - 1991
 
* Made in: Japan
 
* Color: Black
 
* Remote control: No
 
* Power consumption: 820 W (max)
 
* Dimensions: 420 x 435 x 162 mm (WxDxH)
 
* Weight: 19,5 kg
 
* Original price approx.: 1'000 DM
 
  
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die Standardbrücken habe ich durch " Van den Hul " Silver Bridge Brücken ersetzt.
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Dadurch wurde der ohnehin  gute Klang noch deutlich verbessert.
  
'''Connections'''
 
* Number of inputs: 8
 
** DAT /TAPE 1, TAPE 2, ADAPTER1/ TAPE3, ADAPTER 2, CD (gold plated), TUNER, LINE, PHONO (gold plated)
 
* Number of outputs: 2
 
** TAPE 1/CD-R/MD, TAPE 2 MONITOR
 
  
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Technische Daten
  
'''Specifications'''
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- Eingänge : Phono, Tuner, CD / DVD, Line / Aux, TAPE MD/ DAT- 1, Tape/ MD / DAT-2, TAPE / MD / DAT-3, ADAPTOR IN- OUT / PRE- OUT
* Continuous power (at distortion)
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- Vergoldete Anschlussbuchsen für Phono und CD
** 8 Ohm: 2x 95 W / 0,003%
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- auftrennbare Vor- und Endstufe
** 4 Ohm: 2x 140 W
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- Anschlüsse für 2 Lautsprecherpaare A+ B
2 Ohm: 2x 200 W
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- Regler für: Lautstärke, Bässe, Höhen, Balance
* Dynamic power
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- Loudness- Taste, Subsonic- Taste, Muting- Taste
** 8 Ohm: 2x 150 W
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- Line Direct- Schalter : Über brücken der Klangregelstufe für maximale Klangtreue
** 4 Ohm: 2x 200 W
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- DIn- Sinusleistung: 150 W + 150 W, Dynamische Ausgangsleistung: 250 W + 250 W
** 2 Ohm: 2x 300 W
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- Gesamtklirrfaktor. 0,003%
* Total harmonic distortion: 0.003% (20Hz - 20 kHz, 95W, 8 Ohm)
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- Frequenzgang. 1- 150000 Hz 0 dB- 3 dB
* Frequency response: 1 Hz - 150 kHz 0 dB- 3 dB
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- Geräuschspannungsabstand: 108 dB
* Signal-to-noise ratio: 108 dB
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- Leistungsaufnahme : max 820 W
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- Abmessungen BxHxT: 420x162x435 mm
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- Gewicht. 19 Kg
  
  
'''Special Features'''
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2 Netztrafos und Elkos so groß wie Cola-Dosen. Räumlich getrennte Stufen: Verringerte Interferenzen.
* Recording selector switch
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Hohe Stabilität auch an niedrigen Impedanzen. Verkürzte Signalwege für denkbar sauberen Klang.
* Speaker pairs and headphones are switched via relays
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Resonanzdämpfende Konstruktion: Wabenförmig verstärkte Zarge, Kühlkörper und Dämpfer zur Unterbindung von Mikrofonie- Effekten.
* Metal front panel
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Leistungsstarkes, niedrigimpedantes Netzteil: 2 Netztransformatoren und gerippte massive Gußgehäuse sichern eine hohe Kapazität,
* Direct - switch to bypass the tone control stage
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gute Resonanzdämpfung und saubere magnetische Abschirmung.
* Phono - input with choice of MM/MM subsonic filter/MC/MC subsonic filter
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" Non- Switching" Typ III: Wegfall der Schaltverzerrungen und verbesserte Stabilität an niedrigen Impedanzen
* switchable phono preamplifier
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8 Anschlußmöglichkeiten u. a. für 3 Bandgeräte und 1 Klangprozessor (Equalizer, Hallverstärker etc. )
* Separable pre- and power amplifier
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Phono-Entzerrer ( abschaltbar) mit hohem Verstärkungsfaktor. Geeignet für MM- MC Systeme
* connections for 2 speaker pairs A+B
 
* shortened signal paths for the cleanest sound imaginable
 
* spatially separated stages: Reduced interference
 
* resonance-damping design: honeycomb-reinforced frame, heat sink and dampers to eliminate microphonic effects
 
* powerful, low-impedance power supply: 2 power transformers and finned solid cast enclosure ensure high capacitance
 
* good resonance damping and clean magnetic shielding
 
* "Non-Switching" Type III: elimination of switching distortion and improved stability at low impedances
 
* phono equalizer (can be switched off) with high gain; suitable for MM and MC systems
 
 
 
 
 
== Remarks ==
 
* Previous model:
 
* [[Pioneer A-757]]
 
 
 
 
 
* Successor model:
 
* [[Pioneer A-777]]
 
 
 
 
 
* Other models in the same series:
 
*[[Pioneer A-227]]
 
*[[Pioneer A-337]]
 
*[[Pioneer A-447]]
 
*[[Pioneer A-656 MK II]]
 
*[[Pioneer A-757 MK II]]
 
*[[Pioneer A-858]]
 
 
 
 
 
== Pictures ==
 
*[[Picture: Pioneer A-757 MK II
 
[[File:Pioneer A-757 Mark II.jpg]]
 
 
 
 
 
== Reviews ==
 
 
 
== Links ==
 
 
 
 
 
[[Category:Integrated amplifier]]
 

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