How flat is flat enough? Frequency response SPL

Hello guys,

This is my first post so feel free to give advise.

I'm working on my first project where I'm building a bluetooth speaker but I have some questions about vituix and my frequency response. I've been thinkering with this for a few days now but I don't know how flat the responce should be. Some people say it shouldn't be actually and that you need some sort of happy smile in your midrange. So if possible I'd like some advice on this. And another thing was that I'm not sure how to implement my enclosure in vituixcad. I recon the enclosure dimension and volume will have an impact on how the speaker sounds. In the picture below you can see my designed crossover. I am looking at the Dayton Audio TD20F-4 as a tweeter and the Dayton Audio DSA215-8 as a midbase. My goal is to achieve a 100watt-ish setup (Im thinking of getting the TDA7498 amplifier)
spl.png - Google Drive

Hopefully I've given enough and not too much info.
Kind regards
 
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I try to make sure that any rising response in the woofer is flattened and the crossover region transition is smooth. The woofer you chose is already nice and flat looking. If you get the crossover decent you'll have a good sounding system without much to worry about.

The room will be a much bigger problem with flatness.