Difference between revisions of "Pioneer QX-747"
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− | == | + | __NOTOC__ |
− | {{ | + | == Data == |
− | ''' | + | {{navigation}} |
− | * | + | '''General''' |
− | * | + | * Manufacturer: [[Pioneer]] |
− | + | * Model: QX-747 | |
− | * | + | Type: Quadraphonic Receiver |
− | * | + | * Years of manufacture: 1973 - 1976 |
− | * | + | * Made in: Japan |
− | * | + | * Color: silver, wooden case walnut |
− | * | + | * Power consumption: 340 watts |
− | * | + | * Dimensions: 550 x 160 x 420 mm |
− | * | + | * Weight: 19,1 Kg |
+ | * Original price approx.: 650 US-$, 2'765 DM | ||
− | ''' | + | '''Connections:''' |
− | * | + | * Number of inputs: |
− | ** Phono: 2 | + | ** Phono: 2.2 mV, 50 kOhm. |
− | ** Phono | + | ** Phono ground connection: yes |
** AUX: 140 mV, 100 kOhm | ** 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 | + | ** 3 x loudspeaker pairs: 2 x front, 1 x rear |
− | ** 2 x | + | ** 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 | ** 8 Ohm: 4 x 20 Watt | ||
− | + | 4 Ohm: 4 x 25 Watt | |
− | * | + | * music power: quadrophonic, 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 |
** 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 |
** 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 |
− | * | + | * Attenuation factor: 35 at 8 ohms, 1 kHz |
− | * | + | * Frequency response: |
** 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 |
− | * | + | * Signal-to-noise ratio: |
** Phono: 70 dB | ** Phono: 70 dB | ||
− | + | Line: 90 dB | |
− | * | + | * Tone control: yes |
** Bass: ± 10 dB, 100 Hz | ** Bass: ± 10 dB, 100 Hz | ||
− | + | treble: ± 10 dB, 10 kHz | |
− | * Loudness: | + | * Loudness: yes |
− | * High Filter: | + | * High Filter: no |
− | * Low Filter (Subsonic): | + | * Low Filter (Subsonic): no |
− | '''CD-4 | + | '''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:''' | '''Tuner:''' | ||
− | * | + | * Reception: FM, AM |
− | * | + | * Frequencies: |
− | ** | + | ** FM: 88 - 108 MHz |
** MW: 535 - 1600 kHz | ** MW: 535 - 1600 kHz | ||
− | * | + | * Input sensitivity: |
− | ** | + | ** FM: 1.9 µV |
** MW: 15 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 | + | * 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: | + | ** MW: > 55 dB |
− | * AM | + | * AM suppression: 65 dB |
− | ''' | + | '''Special Features''' |
− | * | + | * Equipped with all quadraphonic systems: |
** CD-4 | ** CD-4 | ||
− | + | SQ Decoder | |
** Regular Matrix | ** Regular Matrix | ||
− | * Quadro | + | * Quadro level meter |
− | * | + | * Connector for Dolby adapter |
− | * MPX 4- | + | * MPX 4-Channel Output Jack |
* MPX Noise Filter | * MPX Noise Filter | ||
* FM Muting | * FM Muting | ||
− | * Bass / | + | * 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-646]] | ||
** [[Pioneer QX-747]] | ** [[Pioneer QX-747]] | ||
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− | * [[ | + | * [[Introduction Kenwood 4-channel playback technology]] |
− | == | + | == Pictures == |
− | * | + | * Image: Pioneer QX-747 |
− | [[ | + | [[File:Pioneer QX-747-1.jpg]] |
− | * | + | * Image: Pioneer QX-747 rear panel |
− | [[ | + | [[File:Pioneer QX-747-2.jpg]] |
− | * | + | * Excerpt from brochure: Pioneer QX-747 |
− | [[ | + | [[File:Pioneer QX-747-Prospekt-1.jpg]] |
− | * | + | * Extract from brochure: Pioneer QX-747 |
− | [[ | + | [[File:Pioneer QX-747-Prospekt-11.jpg]] |
− | == | + | * Extract from brochure: Pioneer QX-646, QX-747, QX-949 |
− | * | + | [[File:Pioneer QX-626-727-929-Prospekt-2.jpg]] |
+ | |||
+ | |||
+ | == Reports == | ||
+ | * 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] | ||
+ | |||
+ | * Report at "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] |
− | [[ | + | [[Category:Receiver]] |
Latest revision as of 00:57, 7 November 2020
Data[edit]
General
- Manufacturer: Pioneer
- Model: QX-747
Type: Quadraphonic Receiver
- Years of manufacture: 1973 - 1976
- Made in: Japan
- Color: silver, wooden case walnut
- Power consumption: 340 watts
- Dimensions: 550 x 160 x 420 mm
- Weight: 19,1 Kg
- Original price approx.: 650 US-$, 2'765 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 Decoder
- 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]
- All Pioneer Quadro receivers at a glance:
Pictures[edit]
- Image: Pioneer QX-747
- Image: Pioneer QX-747 rear panel
- Excerpt from brochure: Pioneer QX-747
- Extract from brochure: Pioneer QX-747
- Extract from brochure: Pioneer QX-646, QX-747, QX-949
Reports[edit]
- Review of the Pioneer QX-747 by "Hifi Studio": [1]
- Report at "Hifi Museum" [=quadro]
Links[edit]
- External link Pioneer catalogue on "Hifi Archive": [2]