hello i have a logitech 2.0 speakers the problem with this is as i am playing the sound works from 2 speakers but later on the sound goes dim in the right speaker and is very quiet but the left speaker works good, i have tried to change the power adapter same probem, changed the auxiliary wire same problem, i checked with headphones and both side works i also even tried a different mp3 player with same problem and also even tried with my computer it works for a while and then goes quiet and to make it work again i have to unplug the power adapter and plug back in do you know what is the problem with this is ?