Dual cone aren't components, with dual cone and co-axials the speaker is in the one housing with the tweeter above the woofer.
With a component they're seperate, components are better, as what happens when you crank the volume the woofer pushes and moves the tweeter, which causes distortion or in worse cases destroys it. Components don't do this as it's seperate.
If you do your research and have a bit of knowledge, you can position tweeters and woofers in a components system so that you get a much better listening experience.