Sub sound like their torn at high levels
 

when I play my subs at very high levels they kind of flutter at the very low levels.

Just wondering if its a pressure problem or not.
the subs and amp are completely compatible as the experts say, I should be able to beat the out of them.

anybody have the same problem?

What sub/amp.

its a legacy predator 4000watt 2 ch amp and two 200o watt blaupunkt 10"subs(VW1000)