If I get one of the sound card boxes above can I use Gamcom 780 on mobile (with the adapter cable) and on PS3 ? How exactly could I benefit from the external sound card box other than create 7.1 ? Can I use the external sound card with every headset and sound system ?
Lastly, I'm worry if those external sound cards are poor because of the price comparing to the professional internal sound cards
I'm looking for a price between 30$ - 80$ (if there's no such a headphone which I specified above or there is far better one closer to that range, raise it to 130$)