Guys I recently got a new Samsung Galaxy Star Pro, and when setting it up, it turns out that when I play music on a full set of speakers (not earphones), I noticed that the subwoofer is not emitting any sound. Using earphones provide normal sound, complete from the bass to the treble. I've tried this on three different sets of speakers, and all of them had the same result. Testing the bass from a laptop shows that they're working properly. Is there anything that I should be doing to get the bass from the subwoofers?