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Pioneer Model SX-626 Receiver

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Front View
Image Attribution: Benjamin Busler
Date: July 7th, 2002

Rear View
Image Attribution: Benjamin Busler
Date: July 7th, 2002

DescriptionAM-FM Receiver
First Year1971
Years Manufactured1971-1973
Last Year1973
Blue FaceYes
Silver FaceYes
IC Count4
FET Count4
Transistor Count41
Diode Count22
Speaker ConnectionsThree sets, 2 sets of screws, one euro-plug set
Chassis GroundKnurled metal knob
AC SwitchYes
FusingAGC for power, AGCx2 for speaker outputs
Switched AC OutletsOne
Unswitched AC OutletsOne
Power Consumption170 watts

Panel Width17 11/16ths
Panel Height5 11/32nds
Depth14 3/16ths
Weight21 lb, 13 oz

RMS Power Per Channel20 (20 Hz to 20 KHz, both channels driven, 1% THD)
Damping Factor @ Load Impedance40 at 8 ohms
Power Bandwidth10 Hz to 70 KHz
Frequency Response5 Hz to 80 KHz
Intermodulation Distortion (IM)1%
Input Impedance50 K-Ohm
Input Sensitivity for Full Output500 mv
Speaker SelectionA,B,C
Output Impedance(s)4 to 16 ohms

FM Tuner
RF Sensitivity2.0 uV
300 Ohm Binding PostsYes
75 Ohm Binding PostsYes
THD, Mono0.4%
THD, Stereo0.5%
Signal to Noise Ratio, Mono70 dB
Capture Ratio2.5 dB
IF Image Rejection80 dB
IF Rejection100 dB
Alternate Channel Selectivity (wide or normal)70 dB
Spurious Rejection90 dB
AM Carrier Rejection50 dB
Stereo Separation at 1 kHz40 dB
Carrier Suppression50 dB
Signal Strength MeterYes
Stereo LampYes
Muting SwitchYes

AM Tuner
RF Sensitivity10 uV
Alternate Channel Selectivity30 dB
IF Rejection70 dB
Image Rejection80 dB
Signal to Noise Ratio50 dB
Signal Strength MeteringYes
External Ferrite AntennaYes
Antenna binding PostsYes

Single Bass Adjustment+/- 11 dB at 100 Hz
Single Treble Adjustment-11 dB/+10.5 dB at 10 KHz
High Filter-9 dB at 10 KHz, 6 dB/octave
Low Filter-8 dB at 50 Hz, 6 dB/octave
Loudness ContourYes
Number of Tape MonitorsTwo
Auxillary Input SourceYes
Phono Input SourceYes
2nd Phono Input SourceYes
Tuner Source InputAM/FM
Source Microphone InputYes
Preamp to Amplifier Jumper(s)Yes
Headphone Jack(s)Yes
Speaker Selection NomenclatureA,B,C
Hum and Noise95 dB at aux, 85 db at phono 1 or 2
Signal to Noise Ratio95 dB at aux
Frequency Response15 Hz to 20 KHz +/- 1 dB
Rated Output Level500 mv
Maxiimum Output Level3 V

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