Today matching amps to speakers/crossovers is rooted in personal feelings and corporate marketing, the definition of confusion.
Your post is confusing, crossovers and speakers are typically matched by the speaker designer and if they get a lot of returns and hurt a lot of personal feelings its bad for business. Amps are designed with the notion that they need to drive various types of speakers and specs are posted to help customers choose based on their type of speaker.
Maybe @donavabdear can post a link to one of these sinister corporate marketing campaigns touting mismatched crossovers and speakers or amps that are making claims they can't support???

