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Pioneer model SX-850 AM/FM receiver from December of 1976 in excellent condition. Rated at 65 watts RMS per channel into 8 ohms and 85 watts RMS into 4 ohms.

It has been serviced and fully tested. Includes our original Performance Verification Report and a copy of the Owner's Manual.

 

From Pioneer:

The Pioneer SX-850 is a high power AM/FM stereo receiver with super-quiet phono equalizer and outstanding FM selectivity/sensitivity.

How do you know when to trust a stereo receiver to fill your musical needs?

Power output by itself is not much help, because unless your listening room is the size of a concert hall, a receiver with far less than concert-hall-sized output will do nicely.

The answer, obviously, is to put your trust in the circuitry the kind that you'll enjoy in the pioneer SX-850.

It delivers a continuous power output of 65 watts per channel, min RMS at 8 ohms, from 20 to 20,000 Hertz, with no more than 0.1% total harmonic distortion.

But even more importantly, it has the strength and finesse to handle that power with a healthy respect for musicality.

The SX-850 has a super-quiet phono equalizer in a 3-stage direct-coupled design to achieve wide dynamic range and +- 0.2dB RIAA equalization accuracy.

A FET in the Tone Control section, plus a 2-step frequency turnover switch for Bass and another for Treble, 2-deck monitor/dubbing, 2-system speaker drive, separable pre/main and more, mean further control versatility.

The superb FM/ AM section uses a dual-gate MOS FET and a 4-gang variable capacitor to boost sensitivity and selectivity, a PLL IC in the multiplex to improve stereo separation, and a special Integrated Circuit in the AM for still better reception and less noise.

It's the Pioneer SX-850 - the one you can trust to keep faith with your musical needs.

 

Controls:

Bass
Treble
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Volume
Balance
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Switches:

Power
Speakers A
Speakers B
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MPX Noise Filter
Muting Off
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AM
FM
Phono 1
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Phono 2
Aux
Bass Turnover:
400, 200
Tone: On, Offclassicaudio.com
Treble Turnover: 2.5k, 5k
Low Filter
High Filter
Tape Duplicate
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Tape Monitor 1
Tape Monitor 2
Adaptor
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Mode:
Stereo/Mono
Loudness: On/Offclassicaudio.com
Audio Muting:
-20dB

Indicators:

Signal Strength Meterclassicaudio.com
Tuning Meter
SPEAKER A
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SPEAKER B
STEREO
AM
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FM
PH-1
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PH-2
AUX
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Jacks:

Phones
Mic
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Rear Panel:

AC Outlet Unswitched (2)
AC Outlet Switched
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Antenna Inputs:
FM 75 ohm, FM 300 ohm, AM
AM Ferrite Bar Antennaclassicaudio.com
Phono 1 (L, R)
Phono 2 (L, R)
Aux (L, R)
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Tape 1 Rec (L, R)
Tape 1 Play (L, R)
Tape 2 Rec (L, R)
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Tape 2 Play (L, R)
Tape 2 Rec/Play (DIN)
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Adaptor Out (L, R)
In (L, R)
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Pre-Out (L, R)
Main-In (L, R)
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FM Det Out (4 Channel)

 

Shipping Weight 47 lbs.

 

$2500.00

 

 

ClassicAudio.com
Phone 916-488-6016 or
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Buyer to pay item purchase price plus shipping charges from 95609.
Shipping charges will depend on the item purchased and delivery destination.
Please contact classicaudio.com for a shipping charge quote.
Shipping to the U.S. only.
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PRO PACK!

This item includes our 1 year limited warranty!

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SX-850 Power Supply Refurb:

All electrolytic capacitors replaced.
The 1/2 watt 20% tolerance resistors are replaced with 1 watt 5% tolerance resistors.
Crystallized solder joints are repaired as necessary.
Verification of all operating voltages and correct regulation.

 BEFORE

 AFTER

Also refurbished:

Protect Circuit

All electrolytic capacitors replaced.
Verification of proper operation of the circuit.

Amplifier Section

All electrolytic capacitors replaced.
The Class 'A' input transistor pair are upgraded with heavy duty replacements in both channels.

Phono Section

All electrolytic capacitors replaced.
Confirmation of adherence to the RIAA equalization standard.

Tone Amp

All electrolytic and tantalum capacitors replaced.
All switches and controls cleaned.

Flat Amp

All electrolytic and tantalum capacitors replaced.
All switches and controls cleaned.

Tuner

All electrolytic and tantalum capacitors replaced.
Precision alignment of the FM and FM Multiplex circuits.

All lamps replaced with LEDs.

Main power supply caps replaced with new 15,000uF 80V type.


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