Vintage / Pioneer SX 1280 // Monster Receiver / Fully Rebuilt and Restored

The Pioneer SX-1280 is a beast and a legend. We went through this one top to bottom, and we believe the end result is finer than anything from the production line. From the preamp to the output boards, everything was recapped. We even loved up the wood cabinet. A receiver of this calibre deserves nothing less, wouldn't you agree?

Note: The very back of the heatsinks are broken off. It doesn't effect the operation and isn't visible from the front. This is why this unit is listed at a discount.

PRODUCTION

1978

CONDITION

9/10

SERIAL NO.

XL3100386S

ORIG. MSRP

$900

RESTORATION

• Cleaned all controls and switches
• Rebuilt preamp board with all new signal capacitors
• Replaced tone control board capacitors
• Replaced filter capacitors on both channels output boards
• Replaced heat stressed capacitors in power supply and protection board
• Resoldered connections on power supply board and left channel output transistor board
• Aligned MPX
• Verified operation of all inputs and outputs
• Verified AM and FM operation
• Verified power output exceeds mfg spec of 180 watts per channel RMS

SPECS

Type  Solid State Monster Receiver

Tuning range  AM/FM

Power output  185 watts per channel into 8Ω (stereo)

Frequency response  5Hz to 80kHz

Total harmonic distortion  0.03%

Damping factor  30

Input sensitivity  7.5mV (mic), 2.5mV (MM), 150mV (line)

Signal to noise ratio  80dB (MM), 95dB (line)

Output  150mV (line), 1V (Pre out)

Speaker load impedance  4Ω (minimum)

Semiconductors  5 x FET, 6 x IC, 67 x transistors, 50 x diodes

Dimensions  22"W x 7.5"H x 18.25"D

Weight  64 lbs.

THE HISTORY OF PIONEER

Pioneer was founded by Nozomu Matsumoto in 1938 in Tokyo as a radio and speaker repair shop. In December 1953 Mr. Nozomu Matsumoto succeeded in developing the first domestic dynamic speaker made of original parts. It was named A-8 and marketed in Japan under the Pioneer brand. It later became the origin of the HiFi ...
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STOCK NO.

7642254901469