Pioneer QX-747 specifications

Category : Receiver

Brand : Pioneer

General

connections:

Technical data:

amplifier

CD-4 Demodulator part:

Tuner:

special features

  • manufacturer: Pioneer
  • model: QX-747
  • type: quadraphonic Receiver
  • year of construction: 1973 - 1976
  • Made in Japan
  • color: silver, wood case walnut
  • power consumption: 340 watts
  • dimensions: 550 x 160 x 420 mm
  • weight: 19.1 Kg
  • factory price approx.: 650, US-$, 2'765 DM
  • number of inputs:
    • Phono: 2.2 mV, 50 k643961b8da111c0a15d770a1109a86d4s
    • Phono ground terminal: Yes
    • AUX: 140 mV, 100 k643961b8da111c0a15d770a1109a86d4
    • Tape: 140 mV, 100 k643961b8da111c0a15d770a1109a86d4
    • Coaxial FM antenna terminal (75-643961b8da111c0a15d770a1109a86d4)
    • connection to THE antenna (300-643961b8da111c0a15d770a1109a86d4)
  • number of outputs:
    • 3 x pairs of Speakers: 2 x Front, 1 x Rear
    • 2 x headphone output Front + Rear: the 6.3 mm Jack
  • Phono: 2.2 mV, 50 k643961b8da111c0a15d770a1109a86d4s
  • Phono ground terminal: Yes
  • AUX: 140 mV, 100 k643961b8da111c0a15d770a1109a86d4
  • Tape: 140 mV, 100 k643961b8da111c0a15d770a1109a86d4
  • Coaxial FM antenna terminal (75-643961b8da111c0a15d770a1109a86d4)
  • connection to THE antenna (300-643961b8da111c0a15d770a1109a86d4)
  • 3 x pairs of Speakers: 2 x Front, 1 x Rear
  • 2 x headphone output Front + Rear: the 6.3 mm Jack
  • the duration of the performance: quadraphonic, 20-20 kHz,
    • 8 643961b8da111c0a15d770a1109a86d4: 4 x 20 Watt
    • 4 643961b8da111c0a15d770a1109a86d4: 4 x 25 watts
  • music power: quadraphonic, 20-20 kHz,
    • 8 643961b8da111c0a15d770a1109a86d4s: 4 x 30 watts
    • 4 643961b8da111c0a15d770a1109a86d4: 4 x 35 watts
  • continuous output: Stereo, 20 - 20 kHz
    • 8 643961b8da111c0a15d770a1109a86d4: 2 x 40 watts
    • 4 643961b8da111c0a15d770a1109a86d4: 2 x 50 watts
  • continuous output: Stereo, 1 kHz
    • 8 643961b8da111c0a15d770a1109a86d4s: 45 watts
    • 4 643961b8da111c0a15d770a1109a86d4s: 55 watts
  • total harmonic distortion: 0,5 % for 20 - 20, 000 Hz, 0,005 % at 1 Watt, 8 643961b8da111c0a15d770a1109a86d4s
  • damping factor: 35 at 8 643961b8da111c0a15d770a1109a86d4s, 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
  • control: Yes
    • Bass: ± 10 dB, 100 Hz
    • treble: ± 10 dB, 10 kHz
  • Loudness of the sound: Yes
  • High Filter : no
  • Low Filter (Subsonic): no
  • 8 643961b8da111c0a15d770a1109a86d4s: 4 x 20 watts
  • 4 643961b8da111c0a15d770a1109a86d4: 4 x 25 watts
  • 8 643961b8da111c0a15d770a1109a86d4s: 4 x 30 watts
  • 4 643961b8da111c0a15d770a1109a86d4: 4 x 35 watts
  • 8 643961b8da111c0a15d770a1109a86d4: 2 x 40 watts
  • 4 643961b8da111c0a15d770a1109a86d4: 2 x 50 watts
  • 8 643961b8da111c0a15d770a1109a86d4s: 45 watts
  • 4 643961b8da111c0a15d770a1109a86d4s: 55 watts
  • AUX, Tape: 10 - 25'000 Hz + 0.5 dB, - 1 dB
  • Phono: 30 - 15 000 Hz, ± 1 dB
  • Phono: 70 dB
  • Line: 90 dB
  • Bass: ± 10 dB, 100 Hz
  • treble: ± 10 dB, 10 kHz
  • input sensitivity: 2.5 mV
  • input impedance: 100 k643961b8da111c0a15d770a1109a86d4
  • total harmonic distortion: 0.07 to %
  • 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
  • left to Right: 50 dB
  • Front to Back: 30 dB
  • receiving: FM, AM
  • frequency:
    • FM: 88 - 108 MHz
    • MW: 535 - 1600 kHz
  • input sensitivity:
    • FM: 1,9 µV
    • MW: 15 µV
  • frequency response: 20 - 15 000 Hz
  • total harmonic distortion FM: Stereo 0,4 %, mono 0,2 %
  • signal-to-noise ratio:
    • FM: 70 dB
    • ON: 50 dB
  • Stereo channel separation: > 40 dB at 1 kHz
  • selectivity:
    • FM: 60 dB
    • MW: > 25 dB
  • frequency selection: 1.0 dB
  • in addition to the wave selection: 65 dB
  • mirror frequency attenuation:
    • FM: > 80 dB
    • MW: > 45 dB
  • ZF-loss:
    • FM: > 90 dB
    • MW: > 55 dB
  • ON-rejection: 65 dB
  • FM: 88 - 108 MHz
  • MW: 535 - 1600 kHz
  • FM: 1,9 µV
  • MW: 15 µV
  • FM: 70 dB
  • ON: 50 dB
  • FM: 60 dB
  • MW: > 25 dB
  • FM: > 80 dB
  • MW: > 45 dB
  • FM: > 90 dB
  • MW: > 55 dB
  • Equipped with all the quadraphonic systems:
    • CD-4
    • SQ Decoder
    • Regular Matrix
  • Quad ro level indicator
  • connection for Dolby Adapter
  • MPX 4-channel output Jack
  • MPX Noise Filter
  • FM Muting
  • Bass / treble control V + H separately
  • display-Level switchable: 0dB, - 10 dB - 20 dB
  • CD-4
  • SQ Decoder
  • Regular Matrix
  • introduction of Kenwood 4-channel playback technology
  • report "Hifi-Museum" [=quadro]
  • External Link Pioneer catalogue on "Hi-Fi archive": [2]

Pioneer QX-747

Pioneer QX-747

Pioneer QX-747

Pioneer QX-747

Pioneer QX-747


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