Big Bad Bob wrote:   
      
   >   
   >   
   > And of course a guitar amp is probably going to be designed to pass a   
   > more limited frequency range.  You can see that when you look at   
   > replacement output transformers, typically rated for 100Hz to maybe 4kHz   
   > as opposed to a 20Hz-20kHz range for hifi/stereo amplifiers.   
   >   
      
   ** The output transformers used in tube guitar amps are normally a lot better   
   than you suggest.   
      
   Eg:  A Marshall 50W output transformer has its upper -3dB point at 45kHz.   
      
   The small signal, low frequency response is -3dB at 1Hz (yes, one Hertz) but   
   core saturation at rated power becomes dominant below about 5OHz.   
      
   IME most output transformers used in brand name amps have similar specs.   
      
      
      
   ....  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)