Hi All,  I've had the same question about the meaning of QRS ever
since I became a dealer some twenty years ago.  I've come up with two
meanings and both sound very logical but no one seems to know for
absolute certain which came first.

   Q.R.S.  Quincy, Rome and Syracuse:  Factory locations?
   Q.R.S.  Quality, Real, Service:  logo

Musically,
John A. Tuttle