Question

Just got an X-18 and trying to see if works with the version of Studio One I am running.

Answer 1

Make sure you install the ASIO driver from *********.  Then when you start Studio One, it should "see" the interface.

I am not familiar with Version 2, but my XR18 worked with version 3 and works with Version 4.

If you can't get it to work with Version 2, try the free or demo version of version 4.