Not necessarily. That stronger motor could be pushing a heavier cone, or it could (and probably does) have a stiffer suspension (spider(s)). Probably shouldn't need to worry about it too much imo. If you want to try something new get the obsidians and give us a review, or get a stand by like some lvl 3's, or sa. You can't really go wrong with any of them.
Ok that's why I asked. Thanks man