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Pioneer Model SX-850 Receiver

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Front View
EBay Auction #288163939
Date: 3/20/2000

Designed inJapan
Manufactured InJapan
Wood CaseYes
Silver FaceYes
IC Count3
FET Count3
Transistor Count56
Diode Count36
Speaker ConnectionsTwo Pair
Chassis GroundTwo binding posts
AC SwitchYes
Switched AC OutletsTwo
Unswitched AC OutletsOne
Power Consumption420 watts max

Panel Width20 3/4ths
Panel Height6 13/16ths
Depth16 3/16ths
Weight42 lb 3 oz, 49 lb 6 oz w/package

RMS Power Per Channel65 @ 8 ohms, 85 @ 4 ohms
Damping Factor @ Load Impedance25
Total Harmonic Distortion (THD)0.1%
Power Bandwidth7 Hz to 90 kHz
Frequency Response7 Hz to 90 kHz
Hum and Noise100 dB
Intermodulation Distortion (IM)0.1%
Input Impedance50 k-Ohm
Input Sensitivity for Full Output1 volt
Output Impedance(s)8 to 4 ohms

FM Tuner
RF Sensitivity1.8 uV
300 Ohm Binding PostsYes
75 Ohm Binding PostsYes
50 dB quieting sensitivity, Stereo44 uV
50 dB quieting sensitivity, Mono4 uV
Ultimate Quieting72 dB (mono) @ 65 dBf (1000 uV)
THD, Mono0.15%
THD, Stereo0.30%
Signal to Noise Ratio, Mono72 dB
Signal to Noise Ratio, Stereo67 dB
Frequency Response30 Hz to 15 kHz
Capture Ratio1.0 dB
IF Image Rejection85 dB
IF Rejection100 dB
Stereo Subcarrier Rejection62 dB
SCA Suppression62 dB
Alternate Channel Selectivity (wide or normal)80 dB
Spurious Rejection62 dB
AM Carrier Rejection55 dB
Stereo Separation at 1 kHz40 dB
Mono SwitchYes
Signal Strength MeterYes
Center Tuning MeterYes
Stereo LampYes
25 uS Deemphasis Switch (Dolby Associated)Yes, on rear deck
Quadradial Output (FM Discriminator output, unequalized)Yes

AM Tuner
RF Sensitivity300 uV/meter or 15 uV @ binding posts
Alternate Channel Selectivity35 dB
IF Rejection65 dB
Image Rejection40 dB
Signal to Noise Ratio50 dB
Signal Strength MeteringYes
External Ferrite AntennaYes

Single Bass Adjustment+/- 7 dB, or +/- 10 dB @ 100 Hz
Single Treble Adjustment+/- 7 dB, or +/- 10 dB @ 10 kHz
Tone Control DefeatYes
Bass Turnover Options200 Hz or 400 Hz
Treble Turnover Options5 kHz or 2.5 kHz
High Filter6 kHz, 6 dB/octave
Low Filter30 Hz, 6 dB/octave
Gain ControlYes
Loudness ContourYes
Muting20 dB
Number of Tape MonitorsTwo
Tape to Tape Dubbing1 to 2, or 2 to 1
Auxillary Input SourceYes
Phono Input SourceYes
2nd Phono Input SourceYes
Illuminated Source IndicatorsYes
Tuner Source InputIntegral AM/FM
Source Microphone InputYes (or phono II)
Tape MonitorYes
2nd Tape monitorYes
Preamp to Amplifier Jumper(s)Yes, require bridging
Headphone Jack(s)Yes
Speaker Selection NomenclatureA, B (Illuminated A and B indicators)
Hum and Noise90 dB @ aux input

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