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Message: <blockquote data-quote="ahole-ic" data-source="post: 6791278" data-attributes="member: 619324"><p>You guys aren't understanding. Lower frequencies require the sub to move more than higher frequencies. High SPL is easier to create at higher frequencies. Moving air is what you're doing but it's not how far you move the air in one direction which is what high xmax allows. It's how violently you shake the particles in the air. That is not simply achieved by xmax. Most people get confused. They think you are simply compressing the air inside of the cabin. You're not. You are moving the air creating a sound wave. If you are metering, you are trying to get the least cancellation possible aka maximizing efficiency and trying your best to focus this wave at the sensor. Most people get louder when they open a door or rolling down a window. If you were compressing air, the more you sealed the cabin the louder you would get.</p></blockquote><p></p>

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