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Actually both previous statements are false and myths.
You cant blow a sub due to under powering! There is no minimum limit on a subwoofer, only a maximum. Which is set dependent on testing and is a thermal limit. Due to box design, you may find a lower or higher mechanical limit.
The myth comes to play when people under power like this: You dont have enough power to efficiently drive your subwoofer/speakers so you start cranking settings up on the head unit or amplifiers. At some point the signal becomes clipped and is sent to the subwoofer/speaker. The clipped signal is a DC since its a square wave. Which causes the sub to fully extend for the period that its clipped. In this time period there is a rapid heat buildup in the coil. This is what causes a subwoofer to fry and the myth. Simply under powering will not cause it. Its when people abuse the equipment. Same is true for over powering!
However there is some point when you just give a sub to much power...lol
At time I have doubled or even tripled rated power to subwoofers... When done correctly and not abused for long periods of time, it can take it!
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-Ryan
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