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The Yamaha PSR is a motorcycle. PSR stands for Power Stands Racing, which is a company that sells parts and accessories for standard and racing motorcycles.
the numbers
"PSR" short for "pressure" - given as PSI or BARS
The Yamaha PSR-9000 refers to a model of Yamaha keyboard from the PortaTone PSR series. It is not a type of vehicle and thus, does not contain an engine.
The Yamaha PSR-31 keyboard was first introduced in the early 1980s, so it is around 40 years old as of 2024.
The nearest new replacement for the discontinued Yamaha PSR-E413 would be the PSR-E433. Both are similarly-priced 61-key organ-style keyboards featuring 32-voice polyphony, a 6-track sequencer, beginner lessons and a variety of built-in songs and voices. he PSR-E433 boasts updated versions many of the PSR-E413 features along with a number of new additions (particularly in the preset voices category).
PSR
$3500
There are many possible acronyms for the letters "PSR." Popular options include "poster," "psycho social rehabilitation," and "physicians for social responsibility."
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Prayer - Sowing - Reaping or Or Parish School of Religion since this is in the Catholic section. PSR aka CCD
Its a Jewel of the initial PRS series..