[Iron_Dreamer]

I was reading over KG's desscription of his dynamic headamp design, and the part about the servo circuit using the opamp caught my attention. So the circuit basically shifts the extra DC into the LED's, right? Does this part of the design effecitvely automatically block any DC offset output by a source that does not have internal DC coupling? I ask because if that is true it would enable me to remove the caps from the signal path of my soundcard, not that I think they make much of a difference, but I would prefer not to have them if at all possible.

 

[Glassman]

basicaly it works, but it has rather narrow operating area.. I mean it can deal with a few milivolts on input, but not with a few tens of them not to say a few volts in the case of DAC outputs..

 

[Iron_Dreamer]

I see, thanks.