Just wondering if my voice coil or something is broken from my sub? Bought it about 2 months ago and when I first hooked it into my computer it didn't sound bad, but after a week or few it started to sound like this when I ran some low Hz tests on it. Link to the recording and some info about sub itself: http://www.jamo.com/na-en/products/sub-650-description/Moderated By: brian@diysubwoofers.org