Soundcards,old PCs,USB 7.1 headset,gaming experience,and stereo headsets.Please answer.

P4STEX1LE

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Mar 11, 2014
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Hello guys,I'm considerable new (please bear with me) to this forum.(Just joining today)
I wanted to start playing serious games like Battlefield 4,COD : Ghost,Titanfall,Planetside 2,DOTA 2,CS:GO,and other games..
This year,I wanted to buy a new gaming laptop.Well,not exactly like MSI's,Razer's,Clevo's,but a laptop that is strong enough to play heavy games.{Keep that in mind,not a buyer with a lot of budget}
Before,I used to play with my old PC.I played CS: Online (Search at Google).I used to used
a Phillips SHP1900 to play games.With I hooked it up to the front audio ports(the cable was so short it can't reach the back part of my PC) of my old PC,this headset offer surround sound,so I play CS and was able to detect enemy movements (Well,traditional CS)and footsteps clearly,along the distance and source(position).
After searching a cheap 7.1 headset,I come to this interesting headset called Sades SA-906 (may not be available there in US).This headset offers virtual (emulated) 7.1 surround sound,so I thought about it and with it's low price (about $40 there) I decided to buy it.It offers vibrational features too :D
After several days of buying it,I decided to test it on my PC.I was very disappointed to know that,yeah,it was 7.1 cans,but the sound was kinda baffled.I am not able to hear the source,because its really unclear where did they came from.After reading it's manual book,I founded out that on Windows 7 and Windows 8,they have more features.So,to make long story short,I borrowed my mother's laptop,Samsung N148 Plus.It was a Windows 7 laptop,so I thought that it's output will be great.After tweaking the settings,I put it on 8 Channel output.I tried some Dolby sample tracks,but they resulted in the same,buffled sound,basically just disabling its 7.1 emulated output.I was really disappointed.(Lesson : Don't be a cheapskate LOL)

Cause my old PC and my mother's laptop weren't able to play almost any games,so I decided that I should buy a new laptop.(I wasn't able to buy a PC,I need laptops for my education purposes)
I planned on buying the Asus A46CB (may not e available in the US).The other version of it was the Asus K46CB.It had GREAT reviews in my local forums.But,deciding that my Phillips was not enough due to not having a mic,and my Sades being basically broken,not serving its purposes (Although the vibration was different :p),I wanted another cans for my gaming activities.So,I got some questions...(Sorry for the long story)
I got some options.One was another 7.1 USB headset.Another one is Turtlebeach PX21.
In my laptop,the stereo headset doesn't delivers a surround sound.But on my PC,it does.How did I know that it supports surround?One,from in-game testing,and two,from the software 3D tester.(The software is Realtek's default software,they got 3D testing there)

1)Does USB headsets have their own built-in sound cards?
2)If they do,does that sound card is what delivering the audio,not the PC's sound card?
3)Does stereo headsets supports surround sound?
4)Does PX21 supports surround sound?
5)Which is better,taking the stereo or the 7.1?Please consider I will be using it for GAMING.So yeah,directional audio does a great deal.

If you guys have any questions,please reply fast :D
Btw,sorry for those grammar errors.I came from a country where English were a bit,mehhhhhh