If you look at the first link I posted its the EP400 sealed sub. Look closly it says EP400 at the bottom of the chart. Now explain why it bombs at 20hrz. Strong response then BAM nothing. It should have been gradual not cliff drop off. The second is of the EP500 you get the slight hump at tuning point which looks to be 28-30 and then drop off.

Its ok I was once a blind follower too.

Last edited by gtpsuper; 12/02/11 06:53 PM.