Pioneer QX-949
Data
General
- Manufacturer: Pioneer
- Model: QX-949
Type: Quadraphonic Receiver
- Years of manufacture: 1973 - 1976
- Made in: Japan
- Color: silver, wooden case walnut
- Power consumption: 530 watts
- Dimensions: 550 x 160 x 440 mm
- Weight: 22,4 Kg
- Original price approx.: 750 US-$, 3'752 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 40 Watt
4 Ohm: 4 x 44 Watt
- music power: quadrophonic, 20-20 kHz
- 8 Ohm: 4 x 58 Watt
- 4 Ohm: 4 x 75 Watt
- Continuous power: Stereo, 20- 20 kHz
- 8 Ohm: 2 x 60 Watt
- 4 Ohm: 2 x 65 Watt
- Continuous power: Stereo, 1 kHz
- 8 Ohm: 85 Watt
- 4 Ohm: 100 Watt
- Total harmonic distortion: 0.3 % at 20- 20'000 Hz, 0.02 % 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: 1.8 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: 80 dB
- AM: > 25 dB
- Co-wave selection: 1.0 dB
- Spurious wave selection: 65 dB
- Image frequency attenuation:
- FM: > 85 dB
MW: > 65 dB IF attenuation:
- FM: > 90 dB
- MW: > 85 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
- All Pioneer Quadro receivers at a glance:
Pictures
- Image: Pioneer QX-949
- Excerpt from brochure: Pioneer QX-949
- Excerpt from brochure: Pioneer QX-646, QX-747, QX-949
Reports
- Review of the Pioneer QX-747 by "Hifi Studio": [1]
- Report at "Hifi Museum" [=quadro]
Links
- External link on website "The Vintage Knob": [2]