Pre-cueing not works in Tablet BQ Edison 2

I have full version. Pre-cueing works fine in Samsung S2 but in my tablet BQ Edison 2,I listen the two songs in the two channels even if I select only song or another song

Hi Jose,

I’m so sorry, but I didn’t really get where you’re coming from. Can you give some further information on what exactly the problem is?

Excuse me, the problem is solved.
Was a problem with the equalizer of tablet. I use another equalizer app and all works fine.