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<blockquote data-quote="Phil Lewandowski" data-source="post: 1147" data-attributes="member: 44">Hey all,Just wanted to start this off-shoot thread from the TEF system thread.What I am pretty much interested is in what exactly can be done to figure out what specific effects (semi-hard data) the floor bounce of a flown subwoofer will have in an ideal environment.I am thinking; say place a sub 25-50ft in the air outdoors, a person X distance away with ears 6ft off the ground, with nothing but flat hard surface between the person and under the sub. (No large objects nearby)Trying to figure out if there is some sort of formula or way to figure out the effects of the floor bounce; to figure out what frequencies it would be effecting since the ear are not ground plane and more specifically what it will do to the overall output; since on other forums there has been debate that flying subs causes you to lose &#039;tons&#039; of output. (They would say the theoretical ~6dB.)Another thing Silas brought up was the idea of those lower frequencies not only being heard but being felt.&nbsp; I wonder how that would all fit in?&nbsp; For example, would the &#039;punch in the chest&#039; realm of frequencies have to cancel out in the realm/level of ones body to not be felt.&nbsp; i.e. would cancel out lower than ear level to reduce the amount of &#039;kick?&#039;Thanks,Phil</blockquote>

[QUOTE="Phil Lewandowski, post: 1147, member: 44"] Hey all, Just wanted to start this off-shoot thread from the TEF system thread. What I am pretty much interested is in what exactly can be done to figure out what specific effects (semi-hard data) the floor bounce of a flown subwoofer will have in an ideal environment. I am thinking; say place a sub 25-50ft in the air outdoors, a person X distance away with ears 6ft off the ground, with nothing but flat hard surface between the person and under the sub. (No large objects nearby) Trying to figure out if there is some sort of formula or way to figure out the effects of the floor bounce; to figure out what frequencies it would be effecting since the ear are not ground plane and more specifically what it will do to the overall output; since on other forums there has been debate that flying subs causes you to lose 'tons' of output. (They would say the theoretical ~6dB.) Another thing Silas brought up was the idea of those lower frequencies not only being heard but being felt. I wonder how that would all fit in? For example, would the 'punch in the chest' realm of frequencies have to cancel out in the realm/level of ones body to not be felt. i.e. would cancel out lower than ear level to reduce the amount of 'kick?' Thanks, Phil [/QUOTE]

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