Difference between revisions of "Yamaha A-720"

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== Daten ==
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== Data ==
{{Navigation}}
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{{navigation}}
'''Allgemein'''
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'''General'''
* Hersteller: [[Yamaha]]
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* Manufacturer: [[Yamaha]]
* Modell: A-720
+
* Model: A-720
* Baujahre: 1985-1986
+
* Type: Integrated amplifier
* Typ: Vollverstärker
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* Years of manufacture: 1985 - 1986
* Fernbedienung: Nein
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* Remote control: No
* Leistungsaufnahme:  
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* Power consumption: 470 watts (EU)
* Abmessungen: 43,5x14,7x39,9cm
+
* Dimensions: 435 x 147 x 399 mm (WxHxD)
* Gewicht: 10,2 kg
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* Weight: 10,2 kg
* Farbe: silber und schwarz
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* Color: silver and black
* Neupreis ca.: 1000,- DM
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* Original price approx.: 1'000 DM
  
  
'''Anschlüsse'''
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'''Connections'''
* Anzahl der Eingänge:
+
* Number of inputs:
 
** Phono MM/MC, Tuner, 2x Tape, Aux, CD
 
** Phono MM/MC, Tuner, 2x Tape, Aux, CD
* Anzahl der Ausgänge:
+
* Number of outputs:
** 3x Lautsprecher, 2x Rec-Out, Kopfhörer
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** 3x Speaker, 2x Rec-Out, Headphone
  
  
'''Technische Daten'''
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'''Technical Data'''
* Dauerleistung (bei Klirrfaktor ???)
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* Continuous power (at distortion factor)
** 8 Ohm:
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** 8 Ohm: 2x 105 Watt (0,005%)
** 4 Ohm: 2x 150 Watt
+
** 4 Ohm: 2x 150 Watt (1%)
* Dynamikleistung
 
** 8 Ohm:
 
** 4 Ohm:
 
* Gesamtklirrfaktor: 0,003%
 
* Dämpfungsfaktor:
 
* Eingang (Empfindlichkeit/Impedanz)
 
** hier aufzählen
 
* Ausgang (Pegel/Impedanz)
 
** hier aufzählen
 
* Frequenzgang:
 
* Klangregelung:
 
** Bass: Ja
 
** Höhen: Ja
 
* Loudness: regelbar
 
* Subsonic: schaltbar
 
* Mute: Ja
 
* Direct/Line-Straight: Klangregler abschaltbar
 
* Brummspannungsabstand (kurzgeschlossen):
 
* Stereokanaltrennung:
 
* Signalrauschabstand:
 
  
 +
* Dynamic power
 +
** 8 Ohm: 2x 145 Watt
 +
** 6 Ohm: 2x 180 Watt
 +
** 4 Ohm: 2x 240 Watt
  
'''Besondere Ausstattungen'''
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* Total harmonic distortion: 0,005%
* Record-Selector
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* Attenuation factor: 45
* Mono/Stereo umschaltbar
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* Input (sensitivity/impedance)
* Auto-Class A schaltbar
+
** Phono MM 2.5 mV /47 kOhm
 +
** Phono MC 160 µV /220 Ohm
 +
** CD, Aux, Tape, Tuner 150 mV /47 kOhm
 +
* Output (level/impedance)
 +
** Rec-Out 150 mV /470 Ohm
 +
* Tone control:
 +
** Bass: +/- 10dB (20Hz), peak frequency 350 Hz.
 +
treble: +/- 10 dB (20Hz), peak frequency 3500 Hz
 +
* Loudness: adjustable, -40 dB
 +
* Subsonic: switchable, -12dB below 15Hz
 +
* Mute: Yes, -20 dB
 +
* Direct/Line-Straight: tone control can be switched off
 +
* Ripple (short-circuited):
 +
* Stereo channel separation: 65 dB
 +
* Signal-to-noise ratio: AUX/Tape/Tuner: 106 dB, Phono MM 92 dB, Phone MC 76dB
  
== Bemerkungen ==
 
Weitere Modelle der gleichen Serie:
 
* [[Yamaha A-320|A-320]]
 
* [[Yamaha A-420|A-420]]
 
* [[Yamaha A-520|A-520]]
 
* [[Yamaha A-1020|A-1020]]
 
  
== Bilder ==
+
'''Special Features'''
 +
* Record Selector
 +
* Mono/Stereo switchable
 +
* Auto-Class A/AB switchable
 +
* Loudspeaker pairs individually controllable
 +
 
 +
 
 +
== Notes ==
 +
* Other models in the same series:
 +
* [[Yamaha A-320]]
 +
* [[Yamaha A-420]]
 +
* [[Yamaha A-520]]
 +
* [[Yamaha A-720]]
 +
* [[Yamaha A-1020]]
 +
 
 +
 
 +
* [[Previous model:
 +
* [[Yamaha A-700]]
 +
 
 +
 
 +
* Successor model:
 +
* [[Yamaha AX-700]]
 +
 
 +
 
 +
== Pictures ==
 +
[[File:Yamaha A-720 1.JPG|1000px]]
 +
 
 +
<gallery>
 +
 
 +
Yamaha A-720 2.JPG
 +
Yamaha A-720 3.JPG
 +
</gallery>
 +
 
 +
== Reports ==
 +
* Report in "FonoForum" 3 / 1986
 +
 
 +
 
 +
* Very powerful amplifier with a beautiful appearance. Even after more than 20 years it is still a real powerhouse, but of course, like most old amplifiers, it has problems with the pots. It should be mentioned that all controls are made of aluminium.
  
== Berichte ==
 
  
 
== Links ==
 
== Links ==
  
[[Kategorie:Vollverstärker]]
+
 
 +
[[Category:Integrated amplifier]]

Latest revision as of 13:19, 30 May 2020

Data[edit]

General

  • Manufacturer: Yamaha
  • Model: A-720
  • Type: Integrated amplifier
  • Years of manufacture: 1985 - 1986
  • Remote control: No
  • Power consumption: 470 watts (EU)
  • Dimensions: 435 x 147 x 399 mm (WxHxD)
  • Weight: 10,2 kg
  • Color: silver and black
  • Original price approx.: 1'000 DM


Connections

  • Number of inputs:
    • Phono MM/MC, Tuner, 2x Tape, Aux, CD
  • Number of outputs:
    • 3x Speaker, 2x Rec-Out, Headphone


Technical Data

  • Continuous power (at distortion factor)
    • 8 Ohm: 2x 105 Watt (0,005%)
    • 4 Ohm: 2x 150 Watt (1%)
  • Dynamic power
    • 8 Ohm: 2x 145 Watt
    • 6 Ohm: 2x 180 Watt
    • 4 Ohm: 2x 240 Watt
  • Total harmonic distortion: 0,005%
  • Attenuation factor: 45
  • Input (sensitivity/impedance)
    • Phono MM 2.5 mV /47 kOhm
    • Phono MC 160 µV /220 Ohm
    • CD, Aux, Tape, Tuner 150 mV /47 kOhm
  • Output (level/impedance)
    • Rec-Out 150 mV /470 Ohm
  • Tone control:
    • Bass: +/- 10dB (20Hz), peak frequency 350 Hz.

treble: +/- 10 dB (20Hz), peak frequency 3500 Hz

  • Loudness: adjustable, -40 dB
  • Subsonic: switchable, -12dB below 15Hz
  • Mute: Yes, -20 dB
  • Direct/Line-Straight: tone control can be switched off
  • Ripple (short-circuited):
  • Stereo channel separation: 65 dB
  • Signal-to-noise ratio: AUX/Tape/Tuner: 106 dB, Phono MM 92 dB, Phone MC 76dB


Special Features

  • Record Selector
  • Mono/Stereo switchable
  • Auto-Class A/AB switchable
  • Loudspeaker pairs individually controllable


Notes[edit]




Pictures[edit]

Yamaha A-720 1.JPG

Reports[edit]

  • Report in "FonoForum" 3 / 1986


  • Very powerful amplifier with a beautiful appearance. Even after more than 20 years it is still a real powerhouse, but of course, like most old amplifiers, it has problems with the pots. It should be mentioned that all controls are made of aluminium.


Links[edit]