Pioneer Model SX-1980 Receiver

Front Oblique View EBay Auction #1287825996 Image Attribution: miravistajake/EBay Date: 10/27/01 Rear Oblique View EBay Auction #1287825996 Image Attribution: miravistajake/EBay Date: 10/27/01

General Description Receiver Rarity XXX-Rare Designed in Japan Manufactured In Japan First Year 1978 Years Manufactured 1978...1980 Last Year 1980 Wood Case Yes Silver Face Yes Channels Two Tube Count 0 IC Count 11 FET Count 12 Transistor Count 130 Diode Count 82 Hall Effect Devices 0 Speaker Connections Three Sets Chassis Ground Knurled screws (several) AC Switch Yes Fusing Internal Switched AC Outlets One Unswitched AC Outlets One Power Consumption 1400 watts

Physical Width 22 1/16ths inches Height 8 5/16ths inches Depth 19 9/16ths inches Weight 88 Lbs 11 ounces

Amplifier RMS Power Per Channel 270 watts Damping Factor @ Load Impedance 40 @ 8 ohms Total Harmonic Distortion (THD) 0.03% Power Bandwidth 20 Hz to 20 KHz Frequency Response 5 Hz to 100 kHz +0/-1dB Hum and Noise 120 dB Signal to Noise Ratio 120 dB Intermodulation Distortion (IM) 0.03% 50/7khz 4:1 Input Impedance 50 k ohms Input Sensitivity for Full Output 2 volts Speaker Selection A, B, C DC Capable Yes Meter Range 0.01 to 540 watts Output Meter(s) Dual External Heat Sinks Massive side mounted units Output Impedance(s) 8 through 4 ohms

FM Tuner RF Sensitivity 1.5 uV 300 Ohm Binding Posts Yes 75 Ohm Binding Posts Yes 75 Ohm F Connector raw wire binders 50 dB quieting sensitivity, Stereo 34 uV 50 dB quieting sensitivity, Mono 2.2 uV THD, Mono 0.07% THD, Stereo 0.10% Signal to Noise Ratio, Mono 83 dB Signal to Noise Ratio, Stereo 74 dB Frequency Response 30 Hz to 15 kHz +0.2/-0.5 dB Capture Ratio 1.0 dB IF Image Rejection 120 dB IF Rejection 120 dB Stereo Subcarrier Rejection 65 dB SCA Suppression 65 dB Alternate Channel Selectivity (wide or normal) 80 dB Spurious Rejection 120 dB AM Carrier Rejection 60 dB Stereo Separation at 1 kHz 50 dB Mono Switch Yes Signal Strength Meter Yes Center Tuning Meter Yes Multiplex Filter (Hi-Blend) Yes Quartz Frequency Lock Yes, with indicator Stereo Lamp Yes FM Mode Lamp Yes Multipath Listen Yes Muting Switch Yes 25 uS Deemphasis Switch (Dolby Associated) Yes Station Markers Yes

AM Tuner AM Mode Lamp Yes RF Sensitivity 300 uV/meter Adjacent Channel Selectivity 26 dB IF Rejection 70 dB Image Rejection 70 dB Signal to Noise Ratio 55 dB Signal Strength Metering Yes External Ferrite Antenna Yes Antenna binding Posts Yes

Preamplifier Multiple Bass Adjustments +/- 10 dB @ 100 Hz + +/- 5 dB @ 50 Hz Multiple Treble Adjustments +/- 10 dB @ 10 kHz + +/- 5 dB @ 20 kHz Tone Control Defeat Yes High Filter 8 kHz, 12 dB/octave Low Filter 15 Hz, 12 dB/octave Gain Control Linear stepped in dB Loudness Contour Yes Mono Yes Balance Yes Number of Tape Monitors Two Tape to Tape Dubbing Yes Auxillary Input Source Yes Phono Input Source Yes 2nd Phono Input Source Yes (or Microphone) Illuminated Source Indicators Yes Phono Pickup Impedance Control Yes Cartridge Load Yes Tuner Source Input Integral AM/FM Source Microphone Input Yes (or Phono II) Tape Monitor Yes 2nd Tape monitor Yes Adaptor Provision Switch in front, in/out stereo jacks on rear Preamp to Amplifier Jumper(s) Yes Headphone Jack(s) Yes Speaker Selection Nomenclature A, B, C