No, not really just that the perfects will have more mid-bass. So if you were using smallish speakers they might help fill in that area between say 60-100hz, but if you have good components that arn't lacking in that area you really cant go wrong with either. They both sound great, I like the JL personally but they are expensive.//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif