DDJ-RB

Hello.
I have a problem with my DDJ-RB (rekordbox) controller and I did everything that was on the manual. However, the audio that comes out from speakers is not pleasing AT ALL. I connected my speakers to the laptop. But the sound is very scratchy . And my audio is on Speakers (High Definition Audio Device).

Also, when I plug the earphones on the unit and switching ON 1 for deck 1, nothing is coming out.

I am soo frustrated now. What do I need to do?