Pioneer QX-9900

Data

General

• Manufacturer: Pioneer
• Model: QX-9900

Type: Quadraphonic Receiver

• Years of manufacture: 1972 - 1974
• Made in: Japan
• Color: Silver, wooden case walnut
• Power consumption: 480 watts max.
• Dimensions: 560 x 170 x 430 mm
• Weight: 21,3 Kg
• Original price approx.: 3'752 DM

Connections:

• Number of inputs:
  • Phono 1: 2.9 mV, 45 kOhm
  • Phono 2: 2.9 mV, 45 kOhm
  • Microphone: 3.8 mV, 50 kOhm
  • AUX 1, 2: 200 mV, 60 kOhm
  • Tape Play 1, 2: 200 mV, 60 kOhm

Main In: 500 mV, 50 kOhm Coaxial FM antenna connection (75 Ohm)

• • AM antenna connection (300 Ohm)
• Number of outputs:
  • Tape Rec 1, 2: 200 mV

Pre Out: 500 mV, 4.5 V max.

• • 4 x loudspeaker pairs: 2 x front, 2 x rear
  • 2 x headphone outputs front + rear: 6.3 mm jack each

Technical Data:

Amplifier:

• continuous power: quadrophonic, 20 Hz - 20 kHz
  • 8 Ohm: 4 x 38 Watt

4 Ohm: 4 x 50 Watt

• music power: quadrophonic, 20 Hz - 20 kHz

8 Ohm: 180 W

• • 4 Ohm: 240 W
• Total harmonic distortion: < 0.5 % at rated power
• Attenuation factor: 50 at 8 ohms, 1 kHz
• Frequency response: 5 - 90'000 Hz ± 1 dB
• Signal-to-noise ratio:
  • Phono: > 75 dB
  • Line: > 90 dB
• Tone control:
  • Bass: ± 10.5 dB at 100 Hz
  • Treble: + 9.5 dB, - 10 dB at 10 kHz
• Loudness: + 7 dB at 100 Hz, + 4 dB at 10 kHz
• Low Filter (Subsonic): - 8 dB at 50 Hz (6 dB / octave)
• High Filter: - 8 dB at 10 kHz (6 dB / octave)

Muting: - 20 dB

Tuner:

• Reception: FM, AM
• Frequencies:
  • FM: 87.5 - 108 MHz
  • MW: 525 - 1605 kHz
• Input sensitivity:
  • FM: 1.8 µV
  • MW: 10 µV
• Frequency response: 20 - 15'000 Hz
• Distortion factor FM: Stereo < 0.5 %, < Mono 0,3 %
• Signalrauschabstand:
  • UKW: 70 dB
  • AM: 50 dB
• Stereo-Kanaltrennung: >40 dB at 1 kHz
• Selectivity:
  • FM: 70 dB

MW: 35 dB

• Co-wave selection: 2.0 dB
• Spurious wave selection: > 80 dB
• Image frequency attenuation:
  • FM: > 85 dB

MW: > 80 dB IF attenuation:

• • FM: > 100 dB
  • MW: > 75 dB
• AM suppression: 50 dB

Special Features

• 4 VU meters
• Microphone input front, mixable
• MPX Noise Filter
• FM Muting
• Bass / Tweeter control V + H separately

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

• Extract from brochure: Pioneer QX-9000

Reports

• Review of the Pioneer QX-8000 by "Good Old Hifi": [[1]]

Links

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