Further to "PRaT", this expression is used mainly by the UK audio press, and a bit of fluency in UK vs American English may give an important clue to the origin of this audio expression.
In UK English, a "prat" is a self aggrandizing, pompous "delusionally arrogant" person who "acts against logic".
Hmmmm.....maybe the folks who figured out how to put Naim and Linn electronics in weird boxes and charge huge prices decided that all of there customers were "PRATS" while laughing all the way from the demo room to the bank?
In UK English, a "prat" is a self aggrandizing, pompous "delusionally arrogant" person who "acts against logic".
Hmmmm.....maybe the folks who figured out how to put Naim and Linn electronics in weird boxes and charge huge prices decided that all of there customers were "PRATS" while laughing all the way from the demo room to the bank?