confused

[nickmell 10+ year member]

i have a set of cv 8 subs in my truck runnng off a xplod amp ... my problem is the one on the driver side make a strange vibrating sound when it hit any idea on why it could be doing this it sounds like it is coming from the sub its self and not something else in the truck doing it

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[ryan8551226 10+ year member]

maybe the voice coil is going bad?

 

[nickmell 10+ year member]

danm i hope not they are only like 3 months old...... could having to big of an air space make it do it?