Editing Akai AS-980

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__NOTOC__
 
__NOTOC__
== Data ==
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== Daten ==
{{navigation}}
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{{Navigation}}
'''General'''
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'''Allgemein'''
* Manufacturer: [[Akai]]
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* Hersteller: [[Akai]]
* Model: AS-980
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* Modell: AS-980
* Type: Quadrophonic Receiver
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* Typ: Quadrophonie Receiver
* Years of manufacture: 1973 - 1975
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* Baujahre: 1973 - 1975
* Made in: Japan
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* Hergestellt in: Japan
* Color: silver, wooden case walnut
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* Farbe: Silber, Holzgehäuse Nussbaum
* Remote control: yes, cable remote control
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* Leistungsaufnahme: 480 Watt max.
* Power consumption: 480 watts max.
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* Abmessungen: 650 x 155 x 365 mm
* Dimensions: 650 x 155 x 365 mm
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* Gewicht: 20,5 Kg
* Weight: 20,5 Kg
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* Neupreis ca.: 200'000 Yen (Japan, 1973), entspricht etwa 3'000 DM
* Original price approx.: 200'000 Yen (Japan, 1973), 2'980 DM
 
  
  
'''Connections:'''
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'''Anschlüsse:'''
* Number of inputs:
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* Anzahl der Eingänge:
** Phono 1: 3 mV, 50 kOhm, 130 mV max.
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** Phono 1: 2,9 mV, 45 kOhm  
** Phono 2: 3 mV, 50 kOhm  
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** Phono 2: 2,9 mV, 45 kOhm  
** Microphone: 3.8 mV, 50 kOhm
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** Mikrofon: 3,8 mV, 50 kOhm  
** Media Interface: 3 mV, 50 kOhm  
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** AUX 1, 2: 200 mV, 60 kOhm
** AUX 1, 2: 150 mV, 100 kOhm
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** Tape Play 1, 2: 200 mV, 60 kOhm
** Tape Play 1, 2: 150 mV, 100 kOhm
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** Main In: 500 mV, 50 kOhm
Main In: 500 mV, 50 kOhm
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** Koaxial FM- Antennenanschluss (75 Ohm)
Coaxial FM antenna connection (75 Ohm)
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** Anschluss AM- Antenne (300 Ohm)
** AM antenna connection (300 Ohm)
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* Anzahl der Ausgänge:
* Number of outputs:
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** Tape Rec 1, 2: 200 mV
** Tape Rec 1, 2: 150 mV
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** Pre Out: 500 mV, 4,5 V max.
Pre Out: 500 mV, 4.5 V max.
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** 4 x Lautsprecherpaare: 2 x Vorne, 2 x Hinten
** 4 x loudspeaker pairs: 2 x front, 2 x rear
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** 2 x Kopfhörerausgang Vorne + Hinten: je 6,3 mm Klinke
** 2 x headphone outputs front + rear: 6.3 mm jack each
 
  
  
'''Technical Data:'''
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'''Technische Daten:'''
  
'''Amplifier:'''
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'''Verstärker:'''
* continuous power: quadrophonic, 20 Hz - 20 kHz
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* Dauerleistung: Quadrophonie, 20 Hz - 20 kHz
** 8 Ohm: 4 x 30 Watt  
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** 8 Ohm: 4 x 38 Watt  
4 Ohm: 4 x 40 Watt
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** 4 Ohm: 4 x 50 Watt
* music power: quadrophonic, 20 Hz - 20 kHz
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* Musikleistung: Quadrophonie, 20 Hz - 20 kHz
8 Ohm: 170 W
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** 8 Ohm: 180 W
** 4 Ohm: 220 W
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** 4 Ohm: 240 W
* Total harmonic distortion: < 0.05 % at rated power
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* Gesamtklirrfaktor: < 0,5 % bei Nennleistung
* Attenuation factor: 50 at 8 ohms, 1 kHz
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* Dämpfungsfaktor: 50 bei 8 Ohm, 1 kHz
* Frequency response:  
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* Frequenzgang: 5 - 90'000 Hz ± 1 dB
** Phono RIAA: 20 Hz - 50 kHz (8 ohms), ± 1 dB.
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* Signalrauschabstand:
** High level: 10 - 60'000 Hz ± 3 dB
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** Phono: > 75 dB
* Signal-to-noise ratio:
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** Line: > 90 dB
** Phono: &gt; 75 dB
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* Klangregelung:
** Line: &gt; 90 dB
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** Bass: ± 10 dB bei 100 Hz
* Tone control:
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** Höhen: ± 10 dB bei 10 kHz
** Bass: ± 10 dB at 100 Hz
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* Loudness: + 8 dB bei 100 Hz, + 5 dB bei 10 kHz
Treble: ± 10 dB at 10 kHz
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* Low Filter (Subsonic): - 5 dB bei 50 Hz (6 dB / Oktave)
* Loudness: + 8 dB at 100 Hz, + 5 dB at 10 kHz
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* High Filter: - 6 dB bei 10 kHz (6 dB / Oktave)
* Low Filter (Subsonic): - 5 dB at 50 Hz (6 dB / octave)
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* Muting: - 20 dB
* High Filter: - 6 dB at 10 kHz (6 dB / octave)
 
Muting: - 20 dB
 
 
 
 
 
'''CD-4 Demodulator section:'''
 
* Input sensitivity: 2.5 mV
 
* Input impedance: 100 kOhm
 
* Distortion factor: 0,07
 
* Signal-to-noise ratio: &gt; 70 dB
 
* Channel separation at 1 kHz:
 
** Left to Right: 50 dB
 
front to rear: 30 dB
 
* Frequency range: 20 - 15'000 Hz
 
  
  
 
'''Tuner:'''
 
'''Tuner:'''
* Reception: FM, AM
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* Empfang: FM, AM
* Frequencies:
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* Frequenzen:
** FM: 87.5 - 108 MHz
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** UKW: 87,5 - 108 MHz
 
** MW: 525 - 1605 kHz
 
** MW: 525 - 1605 kHz
* Input sensitivity:  
+
* Eingangsempfindlichkeit:  
** FM: 2.0 µV
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** UKW: 1,8 µV
 
** MW: 10 µV
 
** MW: 10 µV
* Frequency response: 20 - 15'000 Hz
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* Frequenzgang: 20 - 15'000 Hz
* Distortion factor FM: Stereo &lt; 0.5 %, &lt; Mono 0.3 %
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* Klirrfaktor FM: Stereo < 0,5 %, < Mono 0,3 %
* Signal-to-noise ratio:  
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* Signalrauschabstand:  
** FM: 70 dB
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** UKW: 70 dB
 
** AM: 50 dB
 
** AM: 50 dB
* Stereo channel separation: &gt; 40 dB at 1 kHz
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* Stereo-Kanaltrennung: > 40 dB bei 1 kHz
* Selectivity:  
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* Trennschärfe:  
** FM: 70 dB
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** UKW: 70 dB
** AM: 35 dB
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** MW: 35 dB
* Co-wave selection: 2.0 dB
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* Gleichwellenselektion: 2,0 dB
* Spurious wave selection: &gt; 70 dB
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* Nebenwellenselektion: > 80 dB
* Image frequency attenuation:
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* Spiegelfrequenzdämpfung:
** FM: &gt; 85 dB
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** UKW: > 85 dB
MW: &gt; 80 dB
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** MW: > 80 dB
IF attenuation:
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* ZF-Dämpfung:
** FM: &gt; 100 dB
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** UKW: > 100 dB
** MW: &gt; 75 dB
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** MW: > 75 dB
* AM suppression: 50 dB
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* AM-Unterdrückung: 50 dB
  
  
'''Special Features'''
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'''Besondere Ausstattungen'''
* 4 VU meters
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* 4 VU-Meter
* Microphone input front, mixable
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* Mikrofoneingang Front, mischbar
 
* MPX Noise Filter
 
* MPX Noise Filter
 
* FM Muting
 
* FM Muting
* Bass / Tweeter control V + H separately
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* Bass / Hochtonregler V + H separat
  
  
== Remarks ==
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== Bemerkungen ==
* All models in the same series:
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* Alle Akai Quadro Receiver im Überblick:
** [[Akai AA-910]]
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** [[Akai AS-910]]
** [[Akai AA-910 DB]]
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** [[Akai AS-920]]
** [[Akai AA-920]]
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** [[Akai AS-930]]
** [[Akai AA-930]]
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** [[Akai AS-940]]
** [[Akai AA-940]]
 
** [[Akai AS-960]]
 
** [[Akai AS-970]]
 
 
** [[Akai AS-980]]
 
** [[Akai AS-980]]
  
  
* [[Introduction to Kenwood 4-Channel Playback Technology
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* Einführung in die 4-Kanal Wiedergabetechnik
** [[Introduction Kenwood 4-channel playback technology|Introduction Kenwood 4-channel playback technology]]
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** [[Einführung Kenwood 4-Kanal Wiedergabetechnik|Einführung Kenwood 4-Kanal Wiedergabetechnik]]
  
  
== Pictures ==
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== Bilder ==
* Extract from brochure: Akai AS-980
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* Auszug aus Prospekt: Akai AS-980
[[File:Akai AS-980-Prospekt-1.jpg]]
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[[Datei:Akai AS-980-280D-SS-1.jpg]]
  
  
* Excerpt from advertisement: Akai GX-280 D-SS with Akai AS-980
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* Auszug aus Werbung: Akai GX-280 D-SS mit Akai AS-980
[[File:Akai AS-980-280D-SS-1.jpg]]
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[[Datei:Akai AS-980-280D-SS-1.jpg]]
  
  
== Reviews ==
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== Berichte ==
  
  
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[[Category:Receiver]]
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[[Kategorie:Receiver]]
 +
 
 +
 
 +
Form
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FM/AM synthesis stereo amplifier
 +
<FM tuner part>
 +
Received frequency / IF frequency
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76MHz - 90MHz/10.7MHz
 +
Sensitivity (IHF)
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2.0 microvolts
 +
THD
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mono: 0.3% or less
 +
stereo: 0.5% or less
 +
S/N ratio
 +
70dB or more
 +
The degree of selection
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70dB or more
 +
Image ratio
 +
85dB or more (84MHz)
 +
IF disturbance ratio
 +
100dB or more (84MHz)
 +
Spurious
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34dB or less
 +
Antenna input impedance
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A 300-ohm balance type, a 75-ohm balance type
 +
Stereo separation
 +
40dB or more
 +
Capture ratio (IHF)
 +
2.0dB
 +
<AM tuner part>
 +
Received frequency
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535kHz - 1605kHz
 +
Sensitivity (IHF) Dummy
 +
10dB/one MHz (400Hz, 30%Mod)
 +
Image ratio
 +
80dB or more (1MHz)
 +
IF disturbance ratio
 +
75dB or more (1MHz)
 +
The degree of selection
 +
35dB or more
 +
AM distortion
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1.0% or less
 +
S/N ratio
 +
50dB or more (400Hz, 30%Mod)
 +
<Amplifier part>
 +
Output
 +
Music power :
 +
220W (4ohms)
 +
170W (8ohms)
 +
Continuous cruising power :
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40W+40W (4ohms)
 +
30W+30W (8ohms)
 +
THD
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0.05% or less (8ohms)
 +
Output bandwidth (IHF)
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20Hz - 50kHz (8ohms)
 +
Frequency response
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10Hz - -60kHz three dB
 +
Input sensitivity/impedance
 +
Phono: 3mV/50kohm
 +
AUX, Tape Monitor(Din/Pin):150mV/100kohm
 +
Media-Interface-Connector: 3mV/50kohm
 +
An input-proof [ Phono ]
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130mV(1kHz)1%
 +
Equalizer
 +
RIAA±1dB

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