Topic: SRS Audio Sandbox

Hi, I'm kinda new on this forum and i don't know if i opened this topic in the right place. I installed SRS Audio Sandbox on my computer to get better sounding, but when i choose SRS Audio Sandbox (WDM) as my default speaker there is no sound at all. I have Realtek High Definition Audio as my default speaker now. I've seen so many people having this issue but i haven't found an answer yet. If somebody knows how to fix it, then write it down to me please.
OS: Windows 8.