HDJ 1000 left side without bass

Hi.

Recently my HDJ 1000 started to sound only in mono but folding the cord a little bit it would sound stereo again.

But now this doesn't work anymore. So i replaced with a new cord (not the same from HDJ 1000 but a generic 3p audio cord 2,5mm/3,5mm) to see if the problem was the speakers.

Well, now the right speaker sounds good but the left side have no bass. Sounds like the left side is weaker.

I would like to know if this is a problem on the speakers or the cord. Where do i live the original cable is too expensive and i don't know if worth to buy another one.

Thank's.