Up for sale is a freshly restored Pioneer SX-1250. This was Pioneer’s top-of-the-line receiver from 1978. This is a 160 watt-per-channel stereo receiver that will power any speaker you can throw at it. It is a piece of history.

It is in great condition, has been FULLY restored, LED converted, and sounds amazing.

This unit is for sale for *****SOLD*****

Come in and give it a listen before you take it home!

Pioneer SX-1250

This receiver has had the following work done:

  • The main filter capacitors were replaced.
  • The power supply was recapped with new diodes and regulators.
  • The protection board was recapped with new relay transistors and diodes.
  • The stabilizer board was recapped with new transistors, regulators, and diodes. All cold solder joints repaired.
  • The power amp boards were recapped with new input pair transistors and new bias/offset potentiometers.
  • The phono preamplifier was recapped with matching transistors.
  • The preamp board was recapped with new transistors.
  • The tone board was recapped with new transistors.
  • The filter and muting assemblies were recapped with new transistors.
  • The function switch capacitor was replaced.
  • All controls were cleaned and relubed with deoxit.
  • The indicators and dial lamps were all replaced with LEDs.
  • The wood case got some Howard’s Restore-a-Finish and Feed-n-Wax.
  • The unit was biased according to spec and DC offset was set to zero.
  • The unit was play-tested after the restoration.
Pioneer SX-1250
Pioneer SX-1250
Pioneer SX-1250
Pioneer SX-1250
Pioneer SX-1250
Pioneer SX-1250
Pioneer SX-1250

Description

When you go to buy a new receiver, ask yourself these questions:

Does its FM tuner section guarantee high performance of spurious rejection as well as high sensitivity?

Does it include the very latest electronics circuit technology to assure a constant stable and high quality sound reproduction from small to large power output?

Are you going to be proud to own it for a long, long time?

Pioneer’s new and elegantly designed SX-1250 AM/FM receiver provides a resounding yes to each of these questions – and then some.

No other Pioneer receiver provides such incomparable FM performance and sensitivity and then combines it with mammoth continuous power output of 160W per channel, min RMS at 8 Ohms, from 20 Hertz to 20,000 Hertz, with no more than 0.1% total harmonic distortion.

See below for pictures of the restoration.

Specifications

Tuning range: FM, MW

Power output: 160 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 50kHz

Total harmonic distortion: 0.1%

Damping factor: 30

Input sensitivity: 6.5mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)

Signal to noise ratio: 75dB (MM), 90dB (line)

Output: 150mV (line), 30mV (DIN), 1V (Pre out)

Speaker load impedance: 4Ω (minimum)

Dimensions: 556 x 186.5 x 464.5mm

Weight: 29.2kg

 
  • Pioneer SX-1250
    Tone board
  • Pioneer SX-1250
    Function board
  • Pioneer SX-1250
    Filter board
  • Pioneer SX-1250
    Preamp board
  • Pioneer SX-1250
    Main filter caps
  • Pioneer SX-1250
    Old vs new amp boards
  • Pioneer SX-1250
    Power supply board
  • Pioneer SX-1250
    Stabilizer board
  • Pioneer SX-1250
    Protection board
  • Pioneer SX-1250
    Phono board
  • Pioneer SX-1250
    LED upgrade