I have had no reason to inquire about resistors and such. I am not really
an audiophile. I just dig music. Pure Music on a Mac Mini, through an Empirical
Audio Turbo and a Berkley Alpha DAC, to the Leben CS300 (the one with
no X's or whatever) delivers the goods to HD800 cans. It also does beautifully
driving my Rosinante SIgnature IIs--little known speakers, and now rather old,
that will compete withanything I have heard in the $6000-$8000 range.