Dell XPS L502X model laptop JBL speakers (One side base is creating noise when I put a volume 50%)

Hi All,
Siva is here

I am having Dell XPS L502X model laptop JBL speakers (One side base is creating noise when I put a volume 50%. I am hearing the noise from my right side speaker of base)
i wanted to know if anyone else is having any issues with the jbl speakers on the xps 
when i play music or movies above 50% volume the speaker (or maybe sub-woofer) starts jarring
its like a huge vibrating metal sound that i get 
ive tried messing wid the settings and lowered some individual speaker settings too didn't work 
anyone help me or provide some advise. I have uninstalled and installed the audio driver still I am facing the same issue.

Thanks,

Siva.