What are the differences between audigy 2 & 4?

[Daveb2012]

I used to have an x-fi platinum in my old rig which I sold all the HW. Im starting from scratch now, but I don't want to spend $90 on an x-fi again. If i were to go w/ x-fii again I would get the music.

Any way now im starting to consider the audigy zs cards. This wouldnt be too much of a downgrade, right? also im not sure which I should go for 2 or 4? thanks for input.

[Okda]

going from X-fi to 2 or 4 is not a good thing to do specially if u r a gamer

anyway get the 2ZS and soft modd it to 4 since AFAIK 4 is useless

between how much will the 2ZS or 4 cost u cause i think they r very near to the X-Fi so u better spend 15~20$ more and get the X-Fi

[i found nemo]

audigy 4 is 71.00 but there's a 30 dollar rebate, and that's cheaper than the audigy2 zs by about 20 bux