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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: [[Pioneer]]
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* Hersteller: [[Pioneer]]
* Model: QX-747
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* Modell: QX-747
Type: Quadraphonic Receiver
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* Typ: Quadrophonie Receiver
* Years of manufacture: 1973 - 1976
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* Baujahre: 1973 - 1976
* Made in: Japan
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* Hergestellt in: Japan
* Color: silver, wooden case walnut
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* Farbe: Silber, Holzgehäuse Nussbaum
* Power consumption: 340 watts
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* Leistungsaufnahme: 340 Watt
* Dimensions: 550 x 160 x 420 mm
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* Abmessungen: 550 x 160 x 420 mm
* Weight: 19,1 Kg
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* Gewicht: 19,1 Kg
* Original price approx.: 650 US-$, 2'765 DM
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* Neupreis ca.: 650 US-$, 2'765 DM
  
  
'''Connections:'''
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'''Anschlüsse:'''
* Number of inputs:
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* Anzahl der Eingänge:
** Phono: 2.2 mV, 50 kOhm.
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** Phono: 2,2 mV, 50 kOhm  
** Phono ground connection: yes
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** Phono-Erdungsanschluss: ja
 
** AUX: 140 mV, 100 kOhm
 
** AUX: 140 mV, 100 kOhm
Tape: 140 mV, 100 kOhm
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** Tape: 140 mV, 100 kOhm
** Coaxial FM- antenna connection (75 Ohm)
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** Koaxial FM- Antennenanschluss (75 Ohm)
** AM antenna connection (300 Ohm)
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** Anschluss AM- Antenne (300 Ohm)
* Number of outputs:
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* Anzahl der Ausgänge:
** 3 x loudspeaker pairs: 2 x front, 1 x rear
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** 3 x Lautsprecherpaare: 2 x Vorne, 1 x Hinten
** 2 x headphone output front + rear: 6.3 mm jack each
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** 2 x Kopfhörerausgang Vorne + Hinten: je 6,3 mm Klinke
  
  
'''Technical data:'''
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'''Technische Daten:'''
  
'''Amplifier:'''
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'''Verstärker:'''
* continuous power: quadrophonic, 20-20 kHz
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* Dauerleistung: Quadrophonie, 20-20 kHz
 
** 8 Ohm: 4 x 20 Watt  
 
** 8 Ohm: 4 x 20 Watt  
4 Ohm: 4 x 25 Watt
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** 4 Ohm: 4 x 25 Watt
* music power: quadrophonic, 20-20 kHz
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* Musikleistung: Quadrophonie, 20-20 kHz
 
** 8 Ohm: 4 x 30 Watt  
 
** 8 Ohm: 4 x 30 Watt  
 
** 4 Ohm: 4 x 35 Watt
 
** 4 Ohm: 4 x 35 Watt
* Continuous power: Stereo, 20- 20 kHz
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* Dauerleistung: 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
* 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
* 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
* Attenuation factor: 35 at 8 ohms, 1 kHz
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* Dämpfungsfaktor: 35 bei 8 Ohm, 1 kHz
* Frequency response:  
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* Frequenzgang:  
 
** AUX, Tape: 10 - 25'000 Hz + 0,5 dB, - 1 dB
 
** AUX, Tape: 10 - 25'000 Hz + 0,5 dB, - 1 dB
 
** Phono: 30 - 15'000 Hz ± 1 dB
 
** Phono: 30 - 15'000 Hz ± 1 dB
* Power bandwidth: 7 - 40'000 Hz
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* Leistungsbandbreite: 7 - 40'000 Hz
* Signal-to-noise ratio:
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* Signalrauschabstand:
 
** Phono: 70 dB
 
** Phono: 70 dB
Line: 90 dB
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** Line: 90 dB
* Tone control: yes
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* Klangregelung: ja
 
** Bass: ± 10 dB, 100 Hz
 
** Bass: ± 10 dB, 100 Hz
treble: ± 10 dB, 10 kHz
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** Höhen: ± 10 dB, 10 kHz
* Loudness: yes
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* Loudness: ja
* High Filter: no
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* High Filter: nein
* Low Filter (Subsonic): no
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* Low Filter (Subsonic): nein
  
  
'''CD-4 demodulator part:'''
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'''CD-4 Demodulator-Teil:'''
* Input sensitivity: 2.5 mV
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* Eingangsempfindlichkeit: 2,5 mV
* Input impedance: 100 kOhm
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* Eingangsimpedanz: 100 kOhm
* Distortion factor: 0,07
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* Klirrfaktor: 0,07 %
* Signal-to-noise ratio: > 70 dB
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* Signalrauschabstand: > 70 dB
* Channel separation at 1 kHz:
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* Kanaltrennung bei 1 kHz:
** Left to Right: 50 dB
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** Links zu Rechts: 50 dB
front to rear: 30 dB
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** Vorne zu Hinten: 30 dB
* Frequency range: 20 - 15'000 Hz
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* Frequenzumfang: 20 - 15'000 Hz
  
  
 
'''Tuner:'''
 
'''Tuner:'''
* Reception: FM, AM
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* Empfang: FM, AM
* Frequencies:
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* Frequenzen:
** FM: 88 - 108 MHz
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** UKW: 88 - 108 MHz
 
** MW: 535 - 1600 kHz
 
** MW: 535 - 1600 kHz
* Input sensitivity:  
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* Eingangsempfindlichkeit:  
** FM: 1.9 µV
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** UKW: 1,9 µV
 
** MW: 15 µV
 
** MW: 15 µV
* Frequency response: 20 - 15'000 Hz
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* Frequenzgang: 20 - 15'000 Hz
* Distortion factor FM: stereo 0.4 %, mono 0.2 %
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* Klirrfaktor FM: Stereo 0,4 %, mono 0,2 %
* Signal-to-noise ratio:  
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* Signalrauschabstand:  
** FM: 70 dB
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** UKW: 70 dB
AM: 50 dB
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** AM: 50 dB
* Stereo channel separation: > 40 dB at 1 kHz
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* Stereo-Kanaltrennung: > 40 dB bei 1 kHz
* Selectivity:  
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* Trennschärfe:  
** FM: 60 dB
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** UKW: 60 dB
** AM: > 25 dB
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** MW: > 25 dB
* Co-wave selection: 1.0 dB
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* Gleichwellenselektion: 1,0 dB
* Spurious wave selection: 65 dB
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* Nebenwellenselektion: 65 dB
* Image frequency attenuation:
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* Spiegelfrequenzdämpfung:
** FM: > 80 dB
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** UKW: > 80 dB
MW: > 45 dB
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** MW: > 45 dB
IF attenuation:
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* ZF-Dämpfung:
** FM: > 90 dB
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** UKW: > 90 dB
** MW: > 55 dB
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** MW: > 55 dB
* AM suppression: 65 dB
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* AM-Unterdrückung: 65 dB
  
  
'''Special Features'''
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'''Besondere Ausstattungen'''
* Equipped with all quadraphonic systems:
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* Bestückt mit allen Quadrophonie-Systemen:
 
** CD-4
 
** CD-4
SQ Decoder
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** SQ Decoder
 
** Regular Matrix
 
** Regular Matrix
* Quadro level meter
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* Quadro Pegelanzeige
* Connector for Dolby adapter
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* Anschluss für Dolby-Adapter
* MPX 4-Channel Output Jack
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* MPX 4-Kanal Ausgangsbuchse
 
* MPX Noise Filter
 
* MPX Noise Filter
 
* FM Muting
 
* FM Muting
* Bass / Tweeter control V + H separate
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* Bass / Hochtonregler V + H separat
* Display level switchable: 0 dB, - 10 dB, - 20 dB
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* Anzeige-Level umschaltbar: 0 dB, - 10 dB, - 20 dB
  
  
== Remarks ==
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== Bemerkungen ==
* All Pioneer Quadro receivers at a glance:
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* Alle Pioneer Quadro Receiver im Überblick:
 
** [[Pioneer QX-646]]
 
** [[Pioneer QX-646]]
 
** [[Pioneer QX-747]]
 
** [[Pioneer QX-747]]
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* [[Introduction Kenwood 4-channel playback technology]]
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* [[Einführung Kenwood 4-Kanal Wiedergabetechnik]]
  
  
== Pictures ==
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== Bilder ==
* Image: Pioneer QX-747
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* Bild: Pioneer QX-747
[[File:Pioneer QX-747-1.jpg]]
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[[Datei:Pioneer QX-747-1.jpg]]
  
  
* Image: Pioneer QX-747 rear panel
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* Bild: Pioneer QX-747 Rückseite
[[File:Pioneer QX-747-2.jpg]]
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[[Datei:Pioneer QX-747-2.jpg]]
  
  
* Excerpt from brochure: Pioneer QX-747
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* Auszug aus Prospekt: Pioneer QX-747
[[File:Pioneer QX-747-Prospekt-1.jpg]]
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[[Datei:Pioneer QX-747-Prospekt-1.jpg]]
  
  
* Extract from brochure: Pioneer QX-747
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* Auszug aus Prospekt: Pioneer QX-747
[[File:Pioneer QX-747-Prospekt-11.jpg]]
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[[Datei:Pioneer QX-949-Prospekt-1974.jpg]]
  
  
* Extract from brochure: Pioneer QX-646, QX-747, QX-949
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* Auszug aus Prospekt: Pioneer QX-646, QX-747, QX-949
[[File:Pioneer QX-626-727-929-Prospekt-2.jpg]]
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[[Datei:Pioneer QX-626-727-929-Prospekt-2.jpg]]
  
  
== Reports ==
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== Berichte ==
* 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": [https://web.archive.org/web/20120513213611/http://www.hifi-studio.de/hifi-klassiker/pioneer/Pioneer_QX/Pioneer_QX747/Pioneer_QX747.htm]
  
* Report at "Hifi Museum" [http://www.hifimuseum.de/quadro-receiver-1974.html?&no_cache=1&sword_list[]=quadro]
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* Bericht bei "Hifi-Museum" [http://www.hifimuseum.de/quadro-receiver-1974.html?&no_cache=1&sword_list[]=quadro]
  
  
 
== Links ==
 
== Links ==
* External link Pioneer catalogue on "Hifi Archive": [http://www.hifi-archiv.info/Pioneer/1975/pioneer-09.jpg]
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* Externer Link Pioneer Katalog auf "Hifi Archiv": [http://www.hifi-archiv.info/Pioneer/1975/pioneer-09.jpg]
  
  
[[Category:Receiver]]
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[[Kategorie:Receiver]]

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