i have jensen amp when i turn on the stereo the sub pushs up for about 1-2 minuets and then starts working fine

 

The subs push up as in the amp pushes them up and then they stay raised for a minute or two? Depending on how much power your amp is putting out that might be extremely detrimental to your subs health. Try unplugging the RCAs from the amp to see if that makes any difference.

 

it is a jensen 200wbridgable amp. tried unplugging the rca jacks and sub still stays pushed up for 1-2 minuetes.

 

I was just trying to figure out if it was the amp's fault or the head's fault. Your subs are staying up because the amp is sending them constant positive voltage. Your goal is to try to figure out why. I've honestly got no idea.

 

That amp is done. Get it off your subs before you kill them.

 

thanks for info