How to make this Sound

[SMADDER]

Hello.
I was posting this before but in the wrong section.

So i need to know hot to make this sound starting at 0:18 fading in

And i dont talk about the baseline i mean this kind of Synth.

Here is the link

Please help

http://soundcloud.com/preisdruck/001-152/s-VFcHW

[SMADDER]

No Idea ??????????? Or a ytube tut?