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<blockquote data-quote="cdcooper" data-source="post: 5270925" data-attributes="member: 603770">Yes, it makes a sound, all the animals in the forest can tell you it did, or do you think some trees are suddenly surrounded by a Vaccum when the fall? Still have doubt, cut the tree down yourself and record it for the rest of us.As I remember at any given point, you have to double the power to gain 10 db in most systems, but this depends on how efficient your amp and subs are.My goal was to create a system that would do 140db clean. Why? even at that level you do hearing damage over time so if you can do 140 clean, then 130 from the same system would be even cleaner. 120 cleaner still and really friggen nice to listen to.140 db is what is sounds like 100 ft. back from a 747 engine on take off.150 db WILL cause instant permanent hearing damage. Yea good for sound offs and getting the loudest, but what&#039;s the point, you can&#039;t listen to it.</blockquote>

[QUOTE="cdcooper, post: 5270925, member: 603770"] Yes, it makes a sound, all the animals in the forest can tell you it did, or do you think some trees are suddenly surrounded by a Vaccum when the fall? Still have doubt, cut the tree down yourself and record it for the rest of us. As I remember at any given point, you have to double the power to gain 10 db in most systems, but this depends on how efficient your amp and subs are. My goal was to create a system that would do 140db clean. Why? even at that level you do hearing damage over time so if you can do 140 clean, then 130 from the same system would be even cleaner. 120 cleaner still and really friggen nice to listen to. 140 db is what is sounds like 100 ft. back from a 747 engine on take off. 150 db WILL cause instant permanent hearing damage. Yea good for sound offs and getting the loudest, but what's the point, you can't listen to it. [/QUOTE]

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