Difference between revisions of "Pioneer A-777"

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__NOTOC__
'''[A-777]'''
+
== Short description ==
 +
External differences to the A-757 MKII: Golden dot now on volume pot, input and output selector switch. Inside: now vertically mounted circuit boards, thus free view through the bottom plate which is no longer made of copper, now also no honeycomb housing around the relay section and the RCA boards. No more type designations on the cast housings of the transformers.
  
Dauerleistung (beide Kanäle ausgesteuert bei 20Hz bis20 kHz [gemessen mit Tonspektrumanalysator])
+
== Data ==
 +
{{navigation}}
 +
'''General'''
 +
* Manufacturer: [[Pioneer]]
 +
* Model: A-777
 +
* Years of manufacture: 1991-1993
 +
* Made in: Japan
 +
* Color: black
 +
* Type: Analog
 +
* Remote control: no
 +
* Power consumption: 820 W
 +
* Dimensions: 420 x 435 x 162 mm (WxHxD)
 +
* Weight: 19 kg
 +
* New price approx.: 1300 ,-DM
  
Klirrfaktor 0,007%, 8 Ohm - 130W + 130W
 
  
Klirrfaktor 0,009%, 4 Ohm - 170 W + 170W
+
'''Connections'''
 +
* Number of inputs:
 +
** Phono (MM/MC selectable): 2.5 mV / 50 kOhm (MM), 0.2 mV / 100 kOhm (MC).
 +
** CD, Tuner, Line, 3x Tape In, Adapter In: 150 mV / 50 kOhm.
 +
* Number of outputs:
 +
** 3x Tape Out, Adapter Out: 150 mV / 2.2 kOhm.
 +
** Headphones (6.3 mm jack, front)
 +
** 2 pairs of loudspeakers
  
  
Dauerleistung nach DIN (beide Kanäle ausgesteuert bei 1 kHz)
+
'''Technical Data'''
 +
* Continuous power
 +
** 8 Ohm: 2x 110 W / 0,007%
 +
4 Ohm: 2x 155 W
 +
* dynamic power
 +
** 8 Ohm:
 +
** 4 Ohm: 2x 240 W
 +
* Total harmonic distortion: 0.007% (20-20,000 Hz, 95 W, 8 Ohm)
 +
* Attenuation factor: 150 / 70 (8 Ohm, 1 kHz / 20-20,000 Hz).
 +
* Frequency response:
 +
** Phono MM: 20 - 20,000 Hz (±0.2 dB).
 +
Phono MC: 20 - 20,000 Hz (±0.3 dB)
 +
** High level: 1 - 150,000 Hz (+0/-3 dB)
 +
* Signal-to-noise ratio:
 +
** IHF (short-circuited, A-weighted).
 +
*** Phono MM/MC: 94 dB / 76 dB
 +
*** High level: 110dB
 +
** DIN (continuous power/50 mW)
 +
*** Phono MM: 74 dB / 68 dB
 +
*** High level: 92 dB / 70 dB
 +
* Stereo channel separation:
 +
* Tone control:
 +
** Bass: yes, ±8 dB (100 Hz)
 +
Treble: yes, ±8 dB (10 kHz)
 +
* Loudness: yes, +5 dB (100 Hz), +3 dB (10 kHz) (at -40 dB volume)
 +
* High Filter: no
 +
* Low Filter (Subsonic): yes, 17 Hz (-12 dB/oct)
 +
* Mute: yes
 +
* Direct/Line-Straight: yes
  
Klirrfaktor 1,0%, 8 Ohm - 100W + 100W
 
  
Klirrfaktor 1,0%, 4 Ohm - 150W + 150W
+
'''Special Features'''
 +
* -
  
 +
==Notes==
 +
Predecessor model:
 +
* [[Pioneer A-757 MK II]]
  
 +
Successor model:
 +
* none
  
Leistungsbandbreite
 
  
0,05%, 8 Ohm - 5Hz-80kHz
 
  
 +
== Pictures ==
 +
[[File:Pioneer A-777.jpg]]
  
Dämpfungsfaktor
+
== Reports ==
 +
Amplifier powered since 1991 always connected with warfdale boxes. Constant power connection insulated run time 27 years with 3 interrupt due to move. First repap 2018, faulty power change modules on cabinet. Still running after 3 day repair. Cost €60- first owner!
  
(1kHz/20Hz bis 20kHz) an 8 Ohm - 150/70
+
== Links ==
  
 
+
[[Category:Integrated amplifier]]
Dynamikleistung (mit EIA-Dynamik-Testsignal)
 
 
 
4 Ohm/2 Ohm - 220W/350W
 
 
 
 
 
Gesamtklirrfaktor (Gemessen mit Tonspektrumanalysator)
 
 
 
20Hz bis 20kHz, 95W, 8 Ohm - 0,007%
 
 
 
20Hz bis 20kHz, 140W, 4 Ohm - 0,009%
 
 
 
Intermodulationsverzerrung (bei Nennleistung) - 0,007%
 
 
 
- Die oben aufgeführten Daten gelten bei 230V
 
 
 
 
 
'''Stromversorgung/Sonstiges'''
 
 
 
Netzanschluss: 220-230V Wechselstrom, 50/60Hz
 
 
 
Leistungsaufnahme: 820W
 
 
 
Abmessungen: (BxTxH): 420x435x162mm
 
 
 
Gewicht (ohne Verpackung): 19,0kg
 

Latest revision as of 16:02, 5 January 2021

Short description[edit]

External differences to the A-757 MKII: Golden dot now on volume pot, input and output selector switch. Inside: now vertically mounted circuit boards, thus free view through the bottom plate which is no longer made of copper, now also no honeycomb housing around the relay section and the RCA boards. No more type designations on the cast housings of the transformers.

Data[edit]

General

  • Manufacturer: Pioneer
  • Model: A-777
  • Years of manufacture: 1991-1993
  • Made in: Japan
  • Color: black
  • Type: Analog
  • Remote control: no
  • Power consumption: 820 W
  • Dimensions: 420 x 435 x 162 mm (WxHxD)
  • Weight: 19 kg
  • New price approx.: 1300 ,-DM


Connections

  • Number of inputs:
    • Phono (MM/MC selectable): 2.5 mV / 50 kOhm (MM), 0.2 mV / 100 kOhm (MC).
    • CD, Tuner, Line, 3x Tape In, Adapter In: 150 mV / 50 kOhm.
  • Number of outputs:
    • 3x Tape Out, Adapter Out: 150 mV / 2.2 kOhm.
    • Headphones (6.3 mm jack, front)
    • 2 pairs of loudspeakers


Technical Data

  • Continuous power
    • 8 Ohm: 2x 110 W / 0,007%

4 Ohm: 2x 155 W

  • dynamic power
    • 8 Ohm:
    • 4 Ohm: 2x 240 W
  • Total harmonic distortion: 0.007% (20-20,000 Hz, 95 W, 8 Ohm)
  • Attenuation factor: 150 / 70 (8 Ohm, 1 kHz / 20-20,000 Hz).
  • Frequency response:
    • Phono MM: 20 - 20,000 Hz (±0.2 dB).

Phono MC: 20 - 20,000 Hz (±0.3 dB)

    • High level: 1 - 150,000 Hz (+0/-3 dB)
  • Signal-to-noise ratio:
    • IHF (short-circuited, A-weighted).
      • Phono MM/MC: 94 dB / 76 dB
      • High level: 110dB
    • DIN (continuous power/50 mW)
      • Phono MM: 74 dB / 68 dB
      • High level: 92 dB / 70 dB
  • Stereo channel separation:
  • Tone control:
    • Bass: yes, ±8 dB (100 Hz)

Treble: yes, ±8 dB (10 kHz)

  • Loudness: yes, +5 dB (100 Hz), +3 dB (10 kHz) (at -40 dB volume)
  • High Filter: no
  • Low Filter (Subsonic): yes, 17 Hz (-12 dB/oct)
  • Mute: yes
  • Direct/Line-Straight: yes


Special Features

  • -

Notes[edit]

Predecessor model:

Successor model:

  • none


Pictures[edit]

Pioneer A-777.jpg

Reports[edit]

Amplifier powered since 1991 always connected with warfdale boxes. Constant power connection insulated run time 27 years with 3 interrupt due to move. First repap 2018, faulty power change modules on cabinet. Still running after 3 day repair. Cost €60- first owner!

Links[edit]