Howdy v0id...
Don't really know where to start with this, but a lot of sound cards ( the CMI9880 which is a C-Media card/chip ) will use the MIC, Line In as outputs for sound...
Now where do you have your Headsets plugged in, is it the MIC or the Line in ?
Since it sounds half-decent through your ex. speakers I'd say that there are some sound software settings that you may have to play with to achieve your goal...
Not real sure of the software you are using to control the sound card...
Don't really know where to start with this, but a lot of sound cards ( the CMI9880 which is a C-Media card/chip ) will use the MIC, Line In as outputs for sound...
Now where do you have your Headsets plugged in, is it the MIC or the Line in ?
Since it sounds half-decent through your ex. speakers I'd say that there are some sound software settings that you may have to play with to achieve your goal...
Not real sure of the software you are using to control the sound card...