XPost: alt.engineering.electrical, sci.electronics.design, sci.e   
   ectronics.repair   
   From: invalid@invalid.net   
      
   I'd like to add a simple op amp-based tone control circuit to my preamp for   
   desktop speakers & sub that I'm modifying from stock.   
      
   This is the simplest I found:   
      
      
      
   (I have +/- supplies so I will be eliminating all coupling caps and changing   
   Vcc/2 to ground.)   
      
   What are the positives and negatives to this design?   
      
   Better circuit (yet simple)?   
      
   Thanks.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)