@johnk I respectfully disagree with you. I'll fight to the death for your right to your opinion.
Do you have an example of someone you personally know, even better yet, that you heard before and after, of that sounded worse. I have a friend with a similar speaker to mine. Mine sounded better before the upgrade, now his sounds much better.
Every manufacturer is different, but IMO even high end manufacturers tend to cut corners on the (invisible) crossovers.
Jerry