Does PCI sound card makes difference??

For 2.1 you don't need a sound card. If you are going for high end 5.1 or 7.1 setups for your PC it is suggested to use a sound card for better quality.

IF you really dont do any sound editing work or similar kind of work or have deep interest in music Sound card is not really necessary

Also, how much help a Sound card would do to a 2.1 system I am not sure

ArjunKiller said:

For 2.1 you don't need a sound card.

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If the speakers are good enough (that includes 2.1 as well) then yeah, its worth it. I used Value back in the days and now I use Xonar DX.

Definitely, my brother owns one of the Asus's Xonar cards.. He runs BOSE speaker system with it, the sound clarity is mind blowing.

@soyab0007

Yes.. It does make difference. These are the plus points if you have additional sound card than onboard Chip

1. Everything sounds better.
2. You will have more High Volumes than onboard. Onboard sound is weak.
3. With sound card ,Voices will be crisp and Clear compared to onboard.
4. Headphones sounds way better
5. If speakers are above 1000 rs they def'ly need sound card for better experience especially the ones you mentioned.
6. It might save some resources from processor.
7. It's never waste of money.

soyab0007 said:

i am planning to buy used Creative Sound Blaster Audigy SE PCI Sound Card and later on will buy speakers like logitech z313 or altec vs2621...

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If its going to be vs2621/z313, i'd say skip the sound card n invest on better speakers like edifier C2...
Gone are the days wen 2-3K speakers sounded better with sound cards...