XPost: alt.engineering.electrical, sci.electronics.design, sci.e   
   ectronics.repair   
   From: invalid@invalid.net   
      
   > Or, as is not uncommonly done these days in portable digital players,   
   > establish a floating ground for the purpose of providing and signal for the   
   > (floating) load, so that the difference between the output and the floating   
   > ground can become negative.   
      
   Which raises the question I was pondering recently: is it OK to connect 2   
   computers' sound cards' grounds together?   
      
   The PS for the powered speakers is via "wall wart" (not grounded).   
      
   Thanks.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)