Pioneer QX 4000 quadraphonic receiver

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Pioneer 4 Channel Receiver QX 4000

 

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Year 1974 − 1976

 

Specifications

 

FM Parts

Tuning range 87.5 − 108

Sensitivity (IHF) 2.2 micro volts

Equal wave selection 3 dB

Selectivity better than 40 dB

Image Frequency rejection better than 50 dB at 98 MHz

Spurious Response rejection better than 65 dB

Clear factor stereo better than 0.8% (100% Mod)

Stereo separation better than 40 dB

 

AM parts

Tuning range 525.5 − 1.605 KHz

Sensitivity (IHF) 1.5 micro volts

Equal wave selection (1000 KHz) better than 45 dB

Spurious Response rejection better than 50 dB

 

Amplifier parts

Continuos power output ( 1 KHz, 4 channels driven)

11 watts + 11 watts / 11 watts + 11 watts (4 ohms)

11 watts x 4 (4 ohms), 10 watts x 4 (8 ohms)

Power in the range of 20 to 20.000 Hz (2 channels driven)

10 watts + 10 watts / 10 watts + 10 watts (8 ohms),

Harmonic distortion less than 1 % (continuos power output)

Power Bandwidth (IHF) (4 channels driven)

15 to 20.000 Hz (8 ohm), harmonic distortion less than 1 %

Frequency Response 10 to 100.000 Hz +/- 3 dB

Dumping factor 40 ( 8 ohms 1 KHz)

 

Preamplifier parts

Input Sensitivity/Impedance (1KHz for rated output)

PHONO MAG 2.5 micro Volts/50 Kohms

TUNER 200 micro Volts/90 Kohms (4 Ch)

AUX 200 micro Volts/90 Kohms (4 Ch)

TAPE MONITOR 200 micro Volts/90 Kohms (4 Ch)

TAPE REC 200 micro Volts (4Ch)

TAPE REC DIN 35 micro Volts (4Ch)

 

Miscellaneous

Power Requirements 110v, 120v, 130v, 220v, 240v (switchable) 50 − 60 Hz

Power Consumption watts (max)

AC Outlets

Switched 1

Unswitched 1

Dimensions (overall) (w) x (h) x (d) mm

Weight without package kg

 

Done