Re: I've got a question for you guys...
It sounds like cone breakup because the cone is too big for its own good. Cone rigidity is insufficient for the size of the cone. There's a reason that 18s are usually the biggest subs made. For a bigger cone, rigidity must increase exponentially with cone diameter and mass must increase exponentially as well to achieve this. Heavy moving mass reduces the sub's efficiency so big subs are usually underbuilt for their size (there are notable exceptions).
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