XxXSnake23XxX wrote:common sense... don't really have much of that seeing since i'm 17but what about the burning smell from the sub???
Oils, glues, and other residue that's coming off the sub. One of a voice coil's job is to disipate heat, and thus it's power rating in watts. It's actually a thermal rating, stating how much heat a voicecoil can disipate. When it gets warm, residue can evaporate or possibly even burn off depending on its flash point.
As for breaking in a voicecoil, that doesn't really happen. What does "break in" are the moving parts, the surround and spider(s). They will loosen up a tad and usually then produce a tad more bass. It's measureable, but typically not audible.
FWIW, I break in all of my speakers with hours of pink noise and my subs with hours of 20-25hz sine sweeps. That all happens naturally while playing music, I just accelerate the process.