[sdiy] Request brain dump on balanced lines

[Don Tillman]

   > Date: Sun, 13 Oct 2002 16:12:48 +0200
   > From: Ingo Debus <debus at cityweb.de>
   > 
   > I understand that expensive transformers sound better than cheap
   > ones, but why do transformers in general sound better than active
   > balancing circuits? Are there any problems with active balancing
   > circuits,

Hell, yeah!  It's a very difficult problem to solve in a high-fidelity
way.  You need a circuit with a balanced output, a high common mode
output imedance and a low diffential mode output impedance.  The usual
way involves opamps and some questionable feedback paths.

  -- Don

-- 
Don Tillman
Palo Alto, California, USA
don at till.com
http://www.till.com