Well, about six months ago I was showing off to my band with my Mesa 400+ and hit a low note and slid the lowest eq slider all the way up. Pure thunder & then fuzz. If I push the cone in slightly with spread fingers around the dust cap it sounds fine. Just hard to play one-handed bass. Is this speaker blown? If so, I can get it reconed as a K140 or leave it a 130. Which is better for bass? Thanks. Stupid in Nashville. P.S. The 15" is mounted in a Music Man cab, I think it is called a bass reflex type? The speaker faces out and then there is a slant down to a big port along the bottom. Is this the right cab for this type of speaker?