Difference between revisions of "Pioneer QX-747 A"

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__NOTOC__
 +
== Data ==
 +
{{navigation}}
 +
'''General'''
 +
* Manufacturer: [[Pioneer]]
 +
* Model: QX-747 A
 +
Type: Quadraphonic Receiver
 +
* Years of manufacture: 1976 - 1977
 +
* Made in: Japan
 +
* Color: silver, wooden case walnut
 +
* Power consumption: 340 watts
 +
* Dimensions: 550 x 160 x 420 mm (WxHxD)
 +
* Weight: 19.1 kg
 +
* Original price approx.: 2'400 DM
 +
 
 +
 
 +
'''Connections:'''
 +
* Number of inputs:
 +
** Phono: 2.2 mV, 50 kOhm.
 +
** Phono ground connection: yes
 +
** AUX: 140 mV, 100 kOhm
 +
Tape: 140 mV, 100 kOhm
 +
** Coaxial FM- antenna connection (75 Ohm)
 +
** AM antenna connection (300 Ohm)
 +
* Number of outputs:
 +
** 3 x loudspeaker pairs: 2 x front, 1 x rear
 +
** 2 x headphone output front + rear: 6.3 mm jack each
 +
 
 +
 
 +
'''Technical data:'''
 +
 
 +
'''Amplifier:'''
 +
* continuous power: quadrophonic, 20-20 kHz
 +
** 8 Ohm: 4 x 20 Watt
 +
4 Ohm: 4 x 25 Watt
 +
* music power: quadrophonic, 20-20 kHz
 +
** 8 Ohm: 4 x 30 Watt
 +
** 4 Ohm: 4 x 35 Watt
 +
* Continuous power: Stereo, 20- 20 kHz
 +
** 8 Ohm: 2 x 40 Watt
 +
** 4 Ohm: 2 x 50 Watt
 +
* Continuous power: Stereo, 1 kHz
 +
** 8 Ohm: 45 Watt
 +
** 4 Ohm: 55 Watt
 +
* Total harmonic distortion: 0.5 % at 20- 20'000 Hz, 0.005 % at 1 Watt, 8 Ohm
 +
* Attenuation factor: 35 at 8 ohms, 1 kHz
 +
* Frequency response:
 +
** AUX, Tape: 10 - 25'000 Hz + 0,5 dB, - 1 dB
 +
** Phono: 30 - 15'000 Hz ± 1 dB
 +
* Power bandwidth: 7 - 40'000 Hz
 +
* Signal-to-noise ratio:
 +
** Phono: 70 dB
 +
Line: 90 dB
 +
* Tone control: yes
 +
** Bass: ± 10 dB, 100 Hz
 +
treble: ± 10 dB, 10 kHz
 +
* Loudness: yes
 +
* High Filter: no
 +
* Low Filter (Subsonic): no
 +
 
 +
 
 +
'''CD-4 demodulator part:'''
 +
* Input sensitivity: 2.5 mV
 +
* Input impedance: 100 kOhm
 +
* Distortion factor: 0,07
 +
* Signal-to-noise ratio: > 70 dB
 +
* Channel separation at 1 kHz:
 +
** Left to Right: 50 dB
 +
front to rear: 30 dB
 +
* Frequency range: 20 - 15'000 Hz
 +
 
 +
 
 +
'''Tuner:'''
 +
* Reception: FM, AM
 +
* Frequencies:
 +
** FM: 88 - 108 MHz
 +
** MW: 535 - 1600 kHz
 +
* Input sensitivity:
 +
** FM: 1.9 µV
 +
** MW: 15 µV
 +
* Frequency response: 20 - 15'000 Hz
 +
* Distortion factor FM: stereo 0.4 %, mono 0.2 %
 +
* Signal-to-noise ratio:
 +
** FM: 70 dB
 +
AM: 50 dB
 +
* Stereo channel separation: > 40 dB at 1 kHz
 +
* Selectivity:
 +
** FM: 60 dB
 +
** AM: > 25 dB
 +
* Co-wave selection: 1.0 dB
 +
* Spurious wave selection: 65 dB
 +
* Image frequency attenuation:
 +
** FM: > 80 dB
 +
MW: > 45 dB
 +
IF attenuation:
 +
** FM: > 90 dB
 +
** MW: > 55 dB
 +
* AM suppression: 65 dB
 +
 
 +
 
 +
'''Special Features'''
 +
* Equipped with all quadraphonic systems:
 +
** CD-4
 +
SQ Full Logic
 +
** Regular Matrix
 +
* Quadro level meter
 +
* Connector for Dolby adapter
 +
* MPX 4-Channel Output Jack
 +
* MPX Noise Filter
 +
* FM Muting
 +
* Bass / Tweeter control V + H separate
 +
* Display level switchable: 0 dB, - 10 dB, - 20 dB
 +
 
 +
 
 +
== Remarks ==
 +
* All Pioneer Quadro receivers at a glance:
 +
** [[Pioneer QX-646]]
 +
** [[Pioneer QX-747]]
 +
** [[Pioneer QX-747 A]]
 +
** [[Pioneer QX-949]]
 +
** [[Pioneer QX-949 A]]
 +
** [[Pioneer QX-4000]]
 +
** [[Pioneer QX-8000]]
 +
** [[Pioneer QX-8000 A]]
 +
** [[Pioneer QX-9900]]
 +
 
 +
 
 +
* [[Introduction Kenwood 4-channel playback technology]]
 +
 
 +
 
 +
== Pictures ==
 +
* Image: Pioneer QX-747 A
 +
[[File:QX747A.jpg]]
 +
 
 +
 
 +
== Reviews ==
 +
* 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]]
 +
 
 +
 
 +
== Links ==
 +
* External link Pioneer catalog on "Hifi Archive": [[http://www.hifi-archiv.info/Pioneer/1976/pioneer14.jpg]]
 +
 
 +
 
 +
[[Category:Receiver]]

Latest revision as of 05:12, 30 April 2019

Data[edit]

General

  • Manufacturer: Pioneer
  • Model: QX-747 A

Type: Quadraphonic Receiver

  • Years of manufacture: 1976 - 1977
  • Made in: Japan
  • Color: silver, wooden case walnut
  • Power consumption: 340 watts
  • Dimensions: 550 x 160 x 420 mm (WxHxD)
  • Weight: 19.1 kg
  • Original price approx.: 2'400 DM


Connections:

  • Number of inputs:
    • Phono: 2.2 mV, 50 kOhm.
    • Phono ground connection: yes
    • AUX: 140 mV, 100 kOhm

Tape: 140 mV, 100 kOhm

    • Coaxial FM- antenna connection (75 Ohm)
    • AM antenna connection (300 Ohm)
  • Number of outputs:
    • 3 x loudspeaker pairs: 2 x front, 1 x rear
    • 2 x headphone output front + rear: 6.3 mm jack each


Technical data:

Amplifier:

  • continuous power: quadrophonic, 20-20 kHz
    • 8 Ohm: 4 x 20 Watt

4 Ohm: 4 x 25 Watt

  • music power: quadrophonic, 20-20 kHz
    • 8 Ohm: 4 x 30 Watt
    • 4 Ohm: 4 x 35 Watt
  • Continuous power: Stereo, 20- 20 kHz
    • 8 Ohm: 2 x 40 Watt
    • 4 Ohm: 2 x 50 Watt
  • Continuous power: Stereo, 1 kHz
    • 8 Ohm: 45 Watt
    • 4 Ohm: 55 Watt
  • Total harmonic distortion: 0.5 % at 20- 20'000 Hz, 0.005 % at 1 Watt, 8 Ohm
  • Attenuation factor: 35 at 8 ohms, 1 kHz
  • Frequency response:
    • AUX, Tape: 10 - 25'000 Hz + 0,5 dB, - 1 dB
    • Phono: 30 - 15'000 Hz ± 1 dB
  • Power bandwidth: 7 - 40'000 Hz
  • Signal-to-noise ratio:
    • Phono: 70 dB

Line: 90 dB

  • Tone control: yes
    • Bass: ± 10 dB, 100 Hz

treble: ± 10 dB, 10 kHz

  • Loudness: yes
  • High Filter: no
  • Low Filter (Subsonic): no


CD-4 demodulator part:

  • Input sensitivity: 2.5 mV
  • Input impedance: 100 kOhm
  • Distortion factor: 0,07
  • Signal-to-noise ratio: > 70 dB
  • Channel separation at 1 kHz:
    • Left to Right: 50 dB

front to rear: 30 dB

  • Frequency range: 20 - 15'000 Hz


Tuner:

  • Reception: FM, AM
  • Frequencies:
    • FM: 88 - 108 MHz
    • MW: 535 - 1600 kHz
  • Input sensitivity:
    • FM: 1.9 µV
    • MW: 15 µV
  • Frequency response: 20 - 15'000 Hz
  • Distortion factor FM: stereo 0.4 %, mono 0.2 %
  • Signal-to-noise ratio:
    • FM: 70 dB

AM: 50 dB

  • Stereo channel separation: > 40 dB at 1 kHz
  • Selectivity:
    • FM: 60 dB
    • AM: > 25 dB
  • Co-wave selection: 1.0 dB
  • Spurious wave selection: 65 dB
  • Image frequency attenuation:
    • FM: > 80 dB

MW: > 45 dB IF attenuation:

    • FM: > 90 dB
    • MW: > 55 dB
  • AM suppression: 65 dB


Special Features

  • Equipped with all quadraphonic systems:
    • CD-4

SQ Full Logic

    • Regular Matrix
  • Quadro level meter
  • Connector for Dolby adapter
  • MPX 4-Channel Output Jack
  • MPX Noise Filter
  • FM Muting
  • Bass / Tweeter control V + H separate
  • Display level switchable: 0 dB, - 10 dB, - 20 dB


Remarks[edit]



Pictures[edit]

  • Image: Pioneer QX-747 A

QX747A.jpg


Reviews[edit]

  • Review of the Pioneer QX-747 by "Hifi Studio": [[1]]


Links[edit]

  • External link Pioneer catalog on "Hifi Archive": [[2]]
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