USB Sound card distortion

Hey guys!

I have a MacBook 13-inch, Late 2009 (Processor 2,26 GHz Intel Core 2 Duo, Memory 4 GB 1067 MHz DDR3, Graphics NVIDIA GeForce 9400M 256 MB).
I also have a Sinn7 Status 24/96 usb sound card. With OS X Lion it works perfectly (I don't even have to install any driver.)

I just updated to Mavericks and when I plug my sound card's usb to the MB it immediately gives a distorted sound to my speakers (listen here: http://www29.zippyshare.com/v/23993931/file.html ) and get stucked there. I installed the CORE Audio driver from the official website, but still does.

I don't really know what's the problem. I would really appreciate if anyone knows what should I do now. It's really frustrating.

Thank you in advance for your help!