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<blockquote data-quote="Savant" data-source="post: 155274" data-attributes="member: 546108">I&#039;ve seen/read some spraying stuff (damping material or under-body stuff) on the surfaces where the glass box will sit.. to give it that soft barrier..The only time I&#039;d think you would have a movement issue is if you bounce the car pretty hard.. most times the weight of the sub and box will hold it down fine (on a flat surface, maybe not so good.. but we are talking about a form-fitted shape that can&#039;t really slide anywhere, just bounce up).. I have 4 boxes and 2 amps secured to a 1/4 underlayment board (for sub-flooring).. the underlayment is cut to &#039;fit&#039; some curves so it doesn&#039;t slide front/back and goes from wall to wall so no sliding there. but, hitting a speed bump at 15 MPH sure gets the whole rig to get off the floor //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif ... I just try to go slower over them now //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</blockquote>

[QUOTE="Savant, post: 155274, member: 546108"] I've seen/read some spraying stuff (damping material or under-body stuff) on the surfaces where the glass box will sit.. to give it that soft barrier.. The only time I'd think you would have a movement issue is if you bounce the car pretty hard.. most times the weight of the sub and box will hold it down fine (on a flat surface, maybe not so good.. but we are talking about a form-fitted shape that can't really slide anywhere, just bounce up).. I have 4 boxes and 2 amps secured to a 1/4 underlayment board (for sub-flooring).. the underlayment is cut to 'fit' some curves so it doesn't slide front/back and goes from wall to wall so no sliding there. but, hitting a speed bump at 15 MPH sure gets the whole rig to get off the floor [IMG]//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif[/IMG] ... I just try to go slower over them now [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] [/QUOTE]

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