What determines sound output quality of a sound card? I guess:   sampling rate supported by DAC bit resolution used for samples quality jacks(both materials and physical characteristics)   What else? 

I ordered Sennheiser HD 380 Pro headphones, which should provide rather decent sound-quality. I would like to use those headphones with my laptop which has integrated Intel Corporation N10/ICH 7 Family High Definition Audio Controller. According to datasheet it supports 32-bit sample depth and...