08/24/2026
“One of the most desired…vintage amplifiers on the planet today”
There are others…but “none of them have inspired the wide popularity and almost cult following that this receiver was.”
At 270WPC, this was Pioneer’s final blow in the great Watt Wars.
Slides 3 / 4 — the original power supply boards were prone to overheating. This was replaced with modern components and a more heat-friendly design, from the one supplier in North America for these boards. At $600 for a hand-built board, the power supply is almost a steal for a unit like this.
Slide 5— the main filter capacitors were also replaced. The modern variants (blue) are somewhat shorter than the originals, and had to be raised in the unit to provide appropriate terminal contact.
Slide 6 — Tuner board, flat amp board, phono board, tone control board. All other boards had capacitors & transistors changed out. Because each component requires testing and hand-soldering (and un-soldering!), this makes up most of the hours spent on this project.
Slide 7 — Differential pairs are essentially two transistors, wired side-by-side. Each leg has to be carefully soldered in the right place — none of these are simple drop-in components. Output transistors ore the muscle of the amplifier, providing the raw power needed to actually drive your speakers.
This was a customer unit repaired by Serge. Not for sale.
However.
We do have exactly one (1) more SX-1980 in stock. At bringabckanalog.com. With shipping to the continental US (and, at very-special request, beyond).
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“I can’t say enough about this gorgeous piece of Japanese quality. To me, it is the Rolls Royce of all receivers.”
“This may be the best receiver ever made…[t]hey are extremely rare, and unbelievably impressive.”
“This monster is not for the faint of heart”Â
—> Quotations from thevintagehifishack.com