Pioneer QA 800A quadraphonic amplifier

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Pioneer QA 800 A 4 channel amplifier

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Specifications

Year 1973

Semiconductors

FETs : 2

Transistors : 65

Diodes : 15

Preamplifier

Output voltage : 500 mV (rated output)

Harmonic Distortion less than 0.08%

Frequency Response 20 to 40.000 Hz, +/- 1 dB

Input Sensitivity/Impedance (1KHz, for rated output)

PHONO 1 MAG ; 2.5 mV/50 Kohms

PHONO 2 MM ; 2.5 mV/50 Kohms

TUNER ; 200 mV/100 Kohms (4 CH)

AUX 1,2 ; 200 mV/100 Kohms (4 CH)

TAPE MONITOR 1, 2 ; 200 mV/100 Kohms (4 CH)

Recording Output

TAPE REC 1,2 (pin jack) ; 200 mV (4CH)

BASS control ; - 10 dB, + 10 dB/100 Hz

TRABLE control ; −10 dB, + 10 dB/10 Hz

LOW Filter ; - 10 dB/50 HZ (6 dB/oct)

HIGH Filter ; - 10 dB/10 KHz

Equalization Curve ; PHONO ; RIAA S.T.D

Loudness Contour ; + 11 dB/100 Hz, +7 dB/10 KHz with volume control set at - 40 dB position

Muting ; - 20 dB

Hum and Noise (IHF)

PHONO ; more than 80 dB

TUNER, AUX ; more than 90 dB

Power Amplifier Section

Music Power Output (IHF) ; 204 watts (4 0hms), 144 watts (8 0hms)

Continuos Power Output ( 1 KHz, 2 channels driven)

34 watts + 34 watts / 34 watts + 34 watts (4 ohms)

27 watts + 27 watts / 27 watts + 27 watts (4 ohms)

Continuos Power Output ( 1 KHz, 4 channels driven)

24 watts x 4 (4 ohms), 20 watts x 4 (8 ohms)

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

23 watts + 23 watts / 23 watts + 23 watts (8 ohms), harmonic distortion less than 0.5 %

Harmonic Distortion ; Less than 0.5 % (continuos power output)

Intermodulation Distortion ; Less than 0.8 % (continuos power output)

Power Bandwidth (IHF) (4 channels driven) ;

15 to 50.000 Hz (8 ohm), harmonic distortion less than 0.5 %

Frequency Response ; 8 to 70.000 Hz +/- 1 dB

Input Sensitivity/Impedance ; 500 mV/50 Kohms (1 KHz, continuos power output)

Speaker ; 4 to 16 ohms

Dumping factor ; 40 ( 8 ohms, 1 KHz)

Headphone Jacks ; Front and Rear

Miscellaneous

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

Power Consumption ; 290 watts (max)

AC Outlets ; Switched 1, Unswitched 1

Dimensions (overall) ; 430 (w) x 138 (h) x 337 (d) mm

Weight ; without package 10.9 kg / 24 lb

 

 

 

 

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