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__NOTOC__
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== Daten ==
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== Data ==
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{{Navigation}}
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{{navigation}}
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'''Allgemein'''
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'''General'''
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* Hersteller: [[Pioneer]]
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* Manufacturer: [[Pioneer]]
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* Modell: QX-747 A
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* Model: QX-747 A
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* Baujahre: 1976-1977
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Type: Quadraphonic Receiver
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* Hergestellt in: Japan
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* Years of manufacture: 1976 - 1977
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* Farbe: Silber, Holzgehäuse Nussbaum
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* Made in: Japan
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* Leistungsaufnahme: 340 Watt
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* Color: silver, wooden case walnut
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* Abmessungen: 550 x 160 x 420 mm
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* Power consumption: 340 watts
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* Gewicht: 19,1 Kg
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* Dimensions: 550 x 160 x 420 mm (WxHxD)
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* Neupreis ca.: 2765 DM
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* Weight: 19.1 kg
 
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* Original price approx.: 2'400 DM
 
  
  
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'''Connections:'''
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'''Anschlüsse:'''
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* Number of inputs:
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* Anzahl der Eingänge:
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** Phono: 2.2 mV, 50 kOhm.
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** Phono: 2,2 mV, 50 kohm
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** Phono ground connection: yes
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** Phono-Erdungsanschluss: ja
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** AUX: 140 mV, 100 kOhm
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** Tape: 140 mV, 100 kOhm
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Tape: 140 mV, 100 kOhm
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** Koaxial FM- Antennenanschluss (75 Ohm)
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** Coaxial FM- antenna connection (75 Ohm)
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** Anschluss AM- Antenne (300 Ohm)
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** AM antenna connection (300 Ohm)
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* Anzahl der Ausgänge:
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* Number of outputs:
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** 3 Lautsprecherpaare
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** 3 x loudspeaker pairs: 2 x front, 1 x rear
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** 2 x Kopfhörerausgang Vorne + Hinten: je 6,3 mm Klinke
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** 2 x headphone output front + rear: 6.3 mm jack each
 
  
  
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'''Technical data:'''
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'''Technische Daten:'''
  
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'''Amplifier:'''
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'''Verstärker:'''
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* continuous power: quadrophonic, 20-20 kHz
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* Dauerleistung: Quadraphonic, 20-20 kHz
 
** 8 Ohm: 4 x 20 Watt  
 
** 8 Ohm: 4 x 20 Watt  
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4 Ohm: 4 x 25 Watt
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** 4 Ohm: 4 X 25 Watt
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* music power: quadrophonic, 20-20 kHz
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* Dauerleistung: Stereo, 20- 20 kHz
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** 8 Ohm: 4 x 30 Watt
 
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** 4 Ohm: 4 x 35 Watt
 
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* Continuous power: Stereo, 20- 20 kHz
 
 
** 8 Ohm: 2 x 40 Watt
 
** 8 Ohm: 2 x 40 Watt
 
** 4 Ohm: 2 x 50 Watt
 
** 4 Ohm: 2 x 50 Watt
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* Continuous power: Stereo, 1 kHz
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* Dauerleistung: Stereo, 1 kHz
 
** 8 Ohm: 45 Watt
 
** 8 Ohm: 45 Watt
 
** 4 Ohm: 55 Watt
 
** 4 Ohm: 55 Watt
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* Total harmonic distortion: 0.5 % at 20- 20'000 Hz, 0.005 % at 1 Watt, 8 Ohm
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* Gesamtklirrfaktor: 0,5 % bei 20- 20'000 Hz, 0,005 % bei 1 Watt, 8 Ohm
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* Attenuation factor: 35 at 8 ohms, 1 kHz
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* Dämpfungsfaktor: 35 bei 8 ohm, 1 kHz
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* Frequency response:  
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* Frequenzgang:  
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** AUX, Tape: 10 - 25'000 Hz + 0,5 dB, - 1 dB
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** AUX, Tape: 10 - 25'000 Hz ± 0,5 dB
 
** Phono: 30 - 15'000 Hz ± 1 dB
 
** Phono: 30 - 15'000 Hz ± 1 dB
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* Power bandwidth: 7 - 40'000 Hz
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* Leistungsbandbreite: 7 - 40'000 Hz
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* Signal-to-noise ratio:
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* Signalrauschabstand:
 
** Phono: 70 dB
 
** Phono: 70 dB
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Line: 90 dB
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** Line: 90 dB
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* Tone control: yes
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* Klangregelung: ja
 
** Bass: ± 10 dB, 100 Hz
 
** Bass: ± 10 dB, 100 Hz
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treble: ± 10 dB, 10 kHz
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** Höhen: ± 10 dB, 10 kHz
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* Loudness: yes
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* Loudness: ja
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* High Filter: no
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* High Filter: nein
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* Low Filter (Subsonic): no
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* Low Filter (Subsonic): nein
  
  
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'''CD-4 demodulator part:'''
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'''CD-4 Demodulator-Teil:'''
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* Input sensitivity: 2.5 mV
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* Eingangsempfindlichkeit: 2,5 mV
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* Input impedance: 100 kOhm
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* Eingangsimpedanz: 100 kOhm
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* Distortion factor: 0,07
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* Klirrfaktor: 0,07 %
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* Signal-to-noise ratio: > 70 dB
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* Signalrauschabstand: > 70 dB
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* Channel separation at 1 kHz:
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* Kanaltrennung bei 1 kHz:
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** Left to Right: 50 dB
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** Links zu Rechts: 50 dB
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front to rear: 30 dB
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** Vorne zu Hinten: 30 dB
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* Frequency range: 20 - 15'000 Hz
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* Frequenzumfang: 20 - 15'000 Hz
  
  
 
'''Tuner:'''
 
'''Tuner:'''
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* Reception: FM, AM
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* Empfang: FM, AM
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* Frequencies:
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* Frequenzen:
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** FM: 88 - 108 MHz
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** UKW: 88 - 108 MHz
 
** MW: 535 - 1600 kHz
 
** MW: 535 - 1600 kHz
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* Input sensitivity:  
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* Eingangsempfindlichkeit:  
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** FM: 1.9 µV
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** UKW: 1,9 µV
 
** MW: 15 µV
 
** MW: 15 µV
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* Frequency response: 20 - 15'000 Hz
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* Klirrfaktor FM: stereo 0,4 %, mono 0,2 %
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* Distortion factor FM: stereo 0.4 %, mono 0.2 %
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* Signalrauschabstand:  
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* Signal-to-noise ratio:  
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** FM, 70 dB
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** FM: 70 dB
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** AM: 50 dB
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AM: 50 dB
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* Stereo-Kanaltrennung: > 40 dB bei 1 kHz
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* Stereo channel separation: > 40 dB at 1 kHz
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* Trennschärfe: 60 dB
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* Selectivity:
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* Gleichwellenselektion: 1,0 dB
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** FM: 60 dB
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* Nebenwellenselektion: 65 dB
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** AM: > 25 dB
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* Spiegelfrequenzdämpfung:
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* Co-wave selection: 1.0 dB
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** UKW: > 80 dB
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* Spurious wave selection: 65 dB
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** MW: > 45 dB
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* Image frequency attenuation:
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* ZF-Dämpfung:
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** FM: > 80 dB
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** UKW: > 90 dB
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MW: > 45 dB
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** MW: > 55 dB
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IF attenuation:
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* AM-Unterdrückung:  
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** FM: > 90 dB
 
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** MW: > 55 dB
 
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* AM suppression: 65 dB
 
  
  
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'''Special Features'''
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== Besondere Ausstattungen ==
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* Equipped with all quadraphonic systems:
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* Bestückt mit allen Quadrophonie-Systemen:
 
** CD-4
 
** CD-4
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SQ Full Logic
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** SQ
 
** Regular Matrix
 
** Regular Matrix
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* Quadro level meter
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* Quadro Pegelanzeige
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* Connector for Dolby adapter
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* Anschluss für Dolby-Adapater
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* MPX 4-Channel Output Jack
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* MPX 4-Kanal Ausgangsbuchse
 
* MPX Noise Filter
 
* MPX Noise Filter
 
* FM Muting
 
* FM Muting
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* Bass / Tweeter control V + H separate
 
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* Display level switchable: 0 dB, - 10 dB, - 20 dB
 
  
  
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== Remarks ==
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== Bilder ==
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* All Pioneer Quadro receivers at a glance:
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[[Datei:QX747A.jpg]]
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** [[Pioneer QX-646]]
 
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** [[Pioneer QX-747]]
 
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** [[Pioneer QX-747 A]]
 
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** [[Pioneer QX-949]]
 
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** [[Pioneer QX-949 A]]
 
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** [[Pioneer QX-4000]]
 
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** [[Pioneer QX-8000]]
 
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** [[Pioneer QX-8000 A]]
 
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** [[Pioneer QX-9900]]
 
  
  
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* [[Introduction Kenwood 4-channel playback technology]]
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== Bemerkungen ==
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* Alle Pioneer Quadro Receiver im Überblick:
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** [[Pioneer QX-646|QX-646]]
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** [[Pioneer QX-747|QX-747]]
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** [[Pioneer QX-747 A|QX-747 A]]
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** [[Pioneer QX-949|QX-949]]
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** [[Pioneer QX-949 A|QX-949 A]]
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** [[Pioneer QX-4000|QX-4000]]
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** [[Pioneer QX-8000|QX-8000]]
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** [[Pioneer QX-8000 A|QX-8000 A]]
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** [[Pioneer QX-9900|QX-9900]]
  
  
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== Pictures ==
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* Einführung in die 4-Kanal Wiedergabetechnik
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* Image: Pioneer QX-747 A
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** [[Einführung Kenwood 4-Kanal Wiedergabetechnik|Einführung Kenwood 4-Kanal Wiedergabetechnik]]
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[[File:QX747A.jpg]]
 
  
  
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== Reviews ==
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== Berichte ==
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* Review of the Pioneer QX-747 by "Hifi Studio": [[https://web.archive.org/web/20120513213611/http://www.hifi-studio.de/hifi-klassiker/pioneer/Pioneer_QX/Pioneer_QX747/Pioneer_QX747.htm]]
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* Bericht zum Pioneer QX-747 von "Hifi Studio": [[http://www.hifi-studio.de/hifi-klassiker/pioneer/Pioneer_QX/Pioneer_QX747/Pioneer_QX747.htm]]
  
  
 
== Links ==
 
== Links ==
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* External link Pioneer catalog on "Hifi Archive": [[http://www.hifi-archiv.info/Pioneer/1976/pioneer14.jpg]]
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* Externer Link Pioneer Katalog auf "Wegavision Pytalhost": [[http://pioneer.pytalhost.eu/1976/pioneer14.jpg]]
  
  
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[[Category:Receiver]]
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[[Kategorie:Receiver]]

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