thank you for the response

thanks for info --- my old audigy analog jacks vs the analog jacks on a new creative z -- would the output be richer sounding on the z using analog?

OK ...There's no advantage to "discrete" in a headphone, because the acoustic environment is different than with speakers....BUT i have 4 speakers in each ear -- just talking about the front and rear speakers --- fronts are positioned in the cup in front of the rears... i can differentiate...

what i'm interested in is positional sound....using a 5.1 headset with (3) analog inputs ie: front l/r , rear l/r and center/sub.... the surround sound is pumped to each speaker... with a 2 speaker stereo headset you're using dolby or cmss to virtualize surround sound via (1) digital...

yeah I've seen that info --- I'm trying to figure it out --- I like the idea of the senn pc360's with digital connect, but i keep burying myself in opinions regarding surround sound precision, I'm thinking my medusas, while lacking in comparison to the 360's when listening to audio - will...

I'm looking for the best possible surround sound 'positioning' effect when gaming. I'm currently using speedlink-medusa 5.1 analog headphones. My surroud headphones have (3) 5.1 speaker leads and (1) mic lead, plus a usb hookup for power....i have an old audigy with analog 5.1 and 7.1 outputs...