Hello All - I received my MLT 2 system from NewEgg today. The sub had a small crack near the legs and I have decided to keep it. After connecting everything, I ran the Yamaha YPAO and it emitted some hums through the sub. However, I am unable to notice the presence of the sub when I play any music. Also, I smell a slight burning smell when I go near it. Is this normal since it is new? How do I verify that the sub is in the right working condition and make sure that the bass kicks in? Also, how do I fine tune the speakers for a more optimum sound effect?