PIONEER QX-747 - Vintage Audio
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12 Mar PIONEER QX-747

Posted at 01:10h in All stock, Receivers by
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QUADRAPHONIC RECEIVER

570eur

 

GENERAL
Manufacturer: Pioneer
Model: QX-747
Year of manufacture: 1973–1975
Made in: Japan
Dimensions: 520 × 178 × 435 mm (WxHxD)
Weight: ~18 kg
Original price approx.: ~900 USD

TECHNICAL DATA
Type: 4-channel quadraphonic receiver
Power output (4-channel mode): 4 × 27 W (8 Ω, 20 Hz–20 kHz)
Power output (2-channel mode): 2 × 65 W (8 Ω)
Total harmonic distortion: ≤ 0.5%
Frequency response: 10 Hz – 50 kHz
Signal-to-noise ratio:
• Phono: ~70 dB
• Line inputs: ~80 dB
Input sensitivity / impedance:
• Phono (MM): ~2.5 mV / 50 kΩ
• Aux / Tape: ~150 mV / 50 kΩ
FM tuning range: 87.5 – 108 MHz
AM tuning range: 530 – 1605 kHz
Speaker outputs: Front and rear speaker terminals for quadraphonic systems

SPECIAL FEATURES
Built-in quadraphonic decoder supporting SQ and QS matrix systems
4-channel discrete amplifier design
Multiple speaker configurations for 2-channel or 4-channel playback
Front/rear balance and separation controls
Wood cabinet design typical of early-1970s Pioneer receivers
Designed during the peak of quadraphonic audio experimentation in the 1970s

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