i have 2 12" IDQ (image dynamics) in a seald fiberglass box. one of the subs when turned up on certain songs/bass notes will back a flapping noise and you can tell that it physiccally moves different then the other sub. could it be that my sub is damaged or blown? i took it in to have it lookd at but the guy said if it is blown it woould not be playing as loud as it is and that it might just be damaged a little.

 

so what im trying to ask is that is the sub damaged? or blown? by the way you can not tell unless you open the trunk, otherwise in the car it sounds great.

 

"Blown" is a vague term, unforutnately. To some people it means that the voice coil is melted. To others it's any failure of the woofer that causes it to sound effed up.

It sounds like the suspension of the woofer is damaged. If it's still under warranty, it might be replaced.

 

It might also be a leak in a sealed box.

 

If the fiberglass box is divided, true. I assumed that it wasn't, but it might be : )

 

Are those V1 or V2?