And, BTW, some sound cards back at the dawn of time could be jumpered such that the output could supply fleapower to small passive speakers or, jumpered the other way, the outputs would be line level for self-powered speakers. Almost none had any significant power output. For a while there, NEC was selling a kit that had a stereo amp/equalizer that fit in a 5" drive bay and powered some nice 2-way passive speakers (I still have one of the speakers if anyone needs one). But such things were few and far between.
.bh.
:moon: