See, that's what I've heard. I have l7s now and am not getting the sq I would like. They bump plenty hard though. Is the sq better on the cvx's because of the surface area and roundness?
Put the L7 is a larger sealed box and it will do pretty well across the board. There are trade offs on every sub, the L7 can sound decent if you work on it.
stick with what you have. if anything else for the resale value (its hard to get rid of CVXs). The motors look identical, only difference is one is square and one is round